US Patent Class 137
FLUID HANDLING
 Electronic File Wrappers |  Electronic Patent Documents |  Paper Patent Documents | Current as of: June, 1999
|  and Services |
| Electronic File Wrappers | Electronic Patent Documents | Paper Patent Documents | Current as of: June, 1999
| and Services |
| DF | CLASS NOTES | |
| 1 | DF | PROCESSES |
| 2 | DF | .~ With control of flow by a condition or characteristic of a fluid |
| 3 | DF | .~.~ Mixing of plural fluids of diverse characteristics or conditions |
| 4 | DF | .~.~.~ Controlled by consistency of mixture |
| 5 | DF | .~.~.~ Controlled by conductivity of mixture |
| 6 | DF | .~.~.~ Controlled by heat of combustion of mixture |
| 7 | DF | .~.~.~ Controlled by pressure |
| 8 | DF | .~.~ For producing uniform flow |
| 9 | DF | .~.~ For producing proportionate flow |
| 10 | DF | .~.~ By speed of fluid |
| 11 | DF | .~.~ For regulating boiler feed water level |
| 12 | DF | .~.~ By fluid pressure |
| 12.5 | DF | .~ Carbonated beverage handling processes |
| 13 | DF | .~ Affecting flow by the addition of material or energy |
| 14 | DF | .~ Involving pressure control |
| 15 | DF | .~ Cleaning, repairing or assembling |
| 15.1 | DF | HIGHSPEED FLUID INTAKE MEANS (E.G., JET ENGINE INTAKE) |
| 15.2 | DF | .~ With condition responsive control means |
| 38 | DF | CONTROL BY CHANGE OF POSITION OR INERTIA OF SYSTEM |
| 39 | DF | .~ With second control |
| 40 | DF | .~ Position relative body of water (e.g., marine governors) |
| 41 | DF | .~.~ Float controlled |
| 42 | DF | .~.~ Pressure or head controlled |
| 43 | DF | .~ Vent opening or closing on tipping container |
| 44 | DF | .~ By shifting of liquid level |
| 45 | DF | .~ By pendulum or swinging member |
| 46 | DF | .~.~ With servo connection to valve |
| 47 | DF | SPEED RESPONSIVE VALVE CONTROL |
| 48 | DF | .~ Acceleration responsive valve control |
| 49 | DF | .~ With manual valve control |
| 50 | DF | .~ Speed change and excess speed valve control |
| 51 | DF | .~ With other condition responsive valve control |
| 52 | DF | .~.~ Governor drive failure responsive |
| 53 | DF | .~ Centrifugal mass type (exclusive of liquid) |
| 54 | DF | .~.~ With multiple valves |
| 55 | DF | .~.~ Periodically actuated valve |
| 56 | DF | .~.~ Rotating valve and rotating governor |
| 57 | DF | .~.~ Excess speed responsive |
| 58 | DF | .~.~ With fluid servo-motor |
| 59 | DF | FREEZE CONDITION RESPONSIVE SAFETY SYSTEMS |
| 60 | DF | .~ With freeze waste |
| 61 | DF | .~ Stop and waste |
| 62 | DF | .~ Low temperature responsive drains |
| 65 | DF | COMBUSTION FAILURE RESPONSIVE FUEL SAFETY CUT-OFF FOR BURNERS |
| 66 | DF | .~ Thermo-electric |
| 67 | DF | DESTRUCTIBLE OR DEFORMABLE ELEMENT CONTROLLED |
| 68.11 | DF | .~ Destructible element |
| 68.12 | DF | .~.~ Combined destructible and fusible element |
| 68.13 | DF | .~.~ Explosive actuation |
| 68.14 | DF | .~.~ Separable valve coupling or conduit |
| 68.15 | DF | .~.~.~ Tensile or sheer pin or bolt |
| 68.16 | DF | .~.~ Tensile or sheer pin or bolt |
| 68.17 | DF | .~.~.~ Pressure causes pin or bolt to destruct |
| 68.18 | DF | .~.~ With alarm or indicator |
| 68.19 | DF | .~.~ Rupture disc |
| 68.21 | DF | .~.~.~ Means for holding entire disc after rupture |
| 68.22 | DF | .~.~.~ Disc burst after destruction of additional element |
| 68.23 | DF | .~.~.~ Direct pressure causes disc to burst |
| 68.24 | DF | .~.~.~.~ Two-way rupture disc |
| 68.25 | DF | .~.~.~.~ Dome shape |
| 68.26 | DF | .~.~.~.~.~ Reverse buckling |
| 68.27 | DF | .~.~.~ Specific weakening point |
| 68.28 | DF | .~.~.~ Integral disc assembly |
| 68.29 | DF | .~.~.~ Knife or cutter causes disc to break |
| 68.3 | DF | .~.~.~.~ Movable knife or cutter |
| 69 | DF | .~.~ With counterbalancing element |
| 70 | DF | .~.~ Frangible element returns pressure responsive valve |
| 71 | DF | .~.~ Having pressure responsive valve |
| 72 | DF | .~ Heat destructible or fusible |
| 73 | DF | .~.~ With second sensing means |
| 74 | DF | .~.~ In fluid flow path |
| 75 | DF | .~.~ Safety cut-off |
| 76 | DF | .~.~.~ With heater for destructible or fusible element |
| 77 | DF | .~.~.~ With external closing means |
| 78.1 | DF | AMBIENT CONDITION CHANGE RESPONSIVE |
| 78.2 | DF | .~ For controlling soil irrigation |
| 78.3 | DF | .~.~ Soil moisture sensing |
| 78.4 | DF | .~ Burner gas cutoff |
| 78.5 | DF | .~ Atmospheric |
| 79 | DF | .~.~ Temperature |
| 80 | DF | .~.~.~ With additional diverse control |
| 81.1 | DF | .~.~ Pressure |
| 81.2 | DF | .~ Underwater |
| 803 | DF | FLOW AFFECTED BY FLUID CONTACT, ENERGY FIELD OR COANDA EFFECT (E.G., PURE FLUID DEVICE OR SYSTEM) |
| 804 | DF | .~ Responsive to condition external of system |
| 805 | DF | .~.~ And causing change or correction of sensed condition |
| 806 | DF | .~ Utilizing diverse fluids |
| 807 | DF | .~ Utilizing particular fluid |
| 808 | DF | .~ Means to cause rotational flow of fluid (e.g., vortex generator) |
| 809 | DF | .~.~ Plural vortex generators |
| 810 | DF | .~.~ Vortex generator as control for system |
| 811 | DF | .~.~ Vortex generator in interaction chamber of device |
| 812 | DF | .~.~ By tangential input to axial output (e.g., vortex amplifier) |
| 813 | DF | .~.~.~ With means to vary input or output of device |
| 814 | DF | .~ System comprising plural fluidic devices or stages |
| 815 | DF | .~.~ Plural power inputs (e.g., parallel inputs) |
| 816 | DF | .~.~.~ Variable or different-value power inputs |
| 817 | DF | .~.~.~.~ Pulsating power input and continuous-flow power input |
| 818 | DF | .~.~.~ With variable or selectable source of control-input signal |
| 819 | DF | .~.~.~ To cascaded plural devices |
| 820 | DF | .~.~.~.~ With feedback passage(s) between devices of cascade |
| 821 | DF | .~.~.~.~ With pulsed control-input signal |
| 822 | DF | .~ Plural power inputs to single device |
| 823 | DF | .~.~ Intersecting at interaction region (e.g., comparator) |
| 824 | DF | .~.~.~ Co-lineal, oppositely-directed power inputs (e.g., impact modulator) |
| 825 | DF | .~ Means to regulate or vary operation of device |
| 826 | DF | .~.~ To vary frequency of pulses or oscillations |
| 827 | DF | .~.~ By non-fluid energy field affecting input (e.g., transducer) |
| 828 | DF | .~.~.~ Acoustical or thermal energy |
| 829 | DF | .~.~ By movable element |
| 830 | DF | .~.~.~ Operating at timed intervals (e.g., to produce pulses) |
| 831 | DF | .~.~.~ Electrically-actuated element (e.g., electro-mechanical transducer) |
| 832 | DF | .~.~.~ Means (e.g., valve) in control input |
| 833 | DF | .~ Structure of body of device |
| 834 | DF | .~ Device including passages having V over T configuration |
| 835 | DF | .~.~ And feedback passage(s) or path(s) |
| 836 | DF | .~.~ With particular characteristics of control input |
| 837 | DF | .~.~.~ Multiple control-input passages |
| 838 | DF | .~.~ And multiple or joined power-outlet passages |
| 839 | DF | .~.~ And enlarged interaction chamber |
| 840 | DF | .~.~ And vent passage(s) |
| 841 | DF | .~ Device including passages having V over gamma configuration |
| 842 | DF | .~ Device including linearly-aligned power stream emitter and power stream collector |
| 82 | DF | PRESSURE MODULATING RELAYS OR FOLLOWERS |
| 83 | DF | .~ Jet control type |
| 84 | DF | .~ Plural series units |
| 85 | DF | .~ With counter-balancing pressure feedback to the modulating device |
| 86 | DF | .~.~ With counter-counter balancing pressure feedback |
| 87.01 | DF | SELF-PROPORTIONING OR CORRELATING SYSTEMS |
| 88 | DF | .~ Mixture condition maintaining or sensing |
| 89 | DF | .~.~ Dividing and recombining flow |
| 91 | DF | .~.~ By specific gravity |
| 92 | DF | .~.~ By viscosity or consistency |
| 93 | DF | .~.~ By optical or chemical property |
| 94 | DF | .~ Fuel controlled by boiler or water system condition |
| 98 | DF | .~ Self-proportioning flow systems |
| 99 | DF | .~.~ Interconnected flow displacement elements |
| 99.5 | DF | .~.~.~ Movable trap chamber |
| 100 | DF | .~.~ Flow comparison or differential response |
| 101 | DF | .~.~.~ Flow dividers (e.g., reversely acting controls) |
| 101.11 | DF | .~.~.~ Main line flow displaces or entrains material from reservoir |
| 101.19 | DF | .~.~.~ With electrical controller |
| 101.21 | DF | .~.~ Flow displacement element actuates electrical controller |
| 101.25 | DF | .~.~ Liquid level response |
| 101.27 | DF | .~.~.~ Float controlled weir or valve |
| 101.29 | DF | .~.~.~ Swinging outlet pipe controller |
| 101.31 | DF | .~.~ With measuring type discharge assistant |
| 102 | DF | .~ Supply and exhaust type |
| 103 | DF | .~.~ Vacuum or suction pulsator type (e.g., milking machine) |
| 104 | DF | .~.~.~ With trip linkage or snap action |
| 105 | DF | .~.~.~ With pulsation responsive pilot valve |
| 106 | DF | .~.~ Reversing or 4-way valve systems |
| 107 | DF | .~.~ Waste responsive to flow stoppage |
| 109 | DF | .~ Self-controlled branched flow systems |
| 110 | DF | .~.~ Dividing and recombining |
| 111 | DF | .~.~ Plural inflows |
| 112 | DF | .~.~.~ Alternate or successive inflows |
| 113 | DF | .~.~.~.~ Control by depletion of source |
| 114 | DF | .~.~.~ One inflow supplements another |
| 115.01 | DF | .~.~ Bypass or relief controlled by main line fluid condition |
| 115.02 | DF | .~.~.~ Liquid level responsive |
| 115.03 | DF | .~.~.~ Flow rate responsive |
| 115.04 | DF | .~.~.~.~ Including controlling main line flow |
| 115.05 | DF | .~.~.~.~.~ Relief or bypass closes as main opens |
| 115.06 | DF | .~.~.~.~ Bypass or relief valve biased open |
| 115.07 | DF | .~.~.~.~ Pilot valve operated |
| 115.08 | DF | .~.~.~.~ Carried choke |
| 115.09 | DF | .~.~.~.~ Choke |
| 115.1 | DF | .~.~.~.~.~ Variable choke resistance |
| 115.11 | DF | .~.~.~.~ Venturi |
| 115.12 | DF | .~.~.~.~ Flapper |
| 115.13 | DF | .~.~.~ Pressure responsive |
| 116.3 | DF | .~.~.~.~ With pressure reducing inlet valve |
| 116.5 | DF | .~.~.~.~.~ Relief port through common sensing means |
| 115.14 | DF | .~.~.~.~ Common sensor for both bypass or relief valve and other branch valve |
| 115.15 | DF | .~.~.~.~.~ Bypass or relief valve opens as other branch valve closes |
| 115.16 | DF | .~.~.~.~ Bypass or relief valve biased open |
| 115.17 | DF | .~.~.~.~.~ Increasing pressure progressively closes then reopens by-pass or relief valve |
| 115.18 | DF | .~.~.~.~ Bypass or relief valve responsive to pressure downstream of outlet valve |
| 115.19 | DF | .~.~.~.~.~ Pilot valve |
| 115.2 | DF | .~.~.~.~.~ Outlet valve carried by bypass or relief valve |
| 115.21 | DF | .~.~.~.~ Plural sensors for single bypass or relief valve |
| 115.22 | DF | .~.~.~.~.~ Sensors interconnected by timing or restrictive orifice |
| 115.23 | DF | .~.~.~.~ Pilot valve operated |
| 115.24 | DF | .~.~.~.~ Mechanical movement between sensor and valve |
| 115.25 | DF | .~.~.~.~ Electrical control |
| 115.26 | DF | .~.~.~.~ Sensor rigid with valve |
| 115.27 | DF | .~.~.~.~.~ Flexible sensor |
| 115.28 | DF | .~.~.~.~.~ Pressure responsive outlet valve |
| 118.01 | DF | .~.~ Plural outflows |
| 118.02 | DF | .~.~.~ Single actuator operates plural outlets simultaneously |
| 118.03 | DF | .~.~.~ Biased open isolation valve |
| 118.04 | DF | .~.~.~ Flow rate responsive |
| 118.05 | DF | .~.~.~.~ Primer valve |
| 118.06 | DF | .~.~.~ Pressure responsive |
| 118.07 | DF | .~.~.~.~ With external control for correlating valve (e.g., manual) |
| 119.01 | DF | .~.~.~ Alternately or successively substituted outflow |
| 120 | DF | .~.~.~.~ Control by filling auxiliary gravitating or float operating tank |
| 121 | DF | .~.~.~.~ Control by filling outlet tank or receiver |
| 122 | DF | .~.~.~.~.~ Float controlled |
| 119.02 | DF | .~.~.~.~ Four port reversing valve |
| 119.03 | DF | .~.~.~.~ Responsive to pressure or flow interruption |
| 119.04 | DF | .~.~.~.~.~ Plural outlets control with automatic reset |
| 119.05 | DF | .~.~.~.~.~ Manually set to a single outflow position |
| 119.06 | DF | .~.~.~.~ Flow rate responsive |
| 119.07 | DF | .~.~.~.~.~ Flow sensing turbine |
| 119.08 | DF | .~.~.~.~ Pressure responsive |
| 119.09 | DF | .~.~.~.~.~ Responsive to outlet pressure |
| 119.1 | DF | .~.~.~.~ Electrical control |
| 87.02 | DF | .~ Liquid level responsive |
| 87.03 | DF | .~ Flow rate responsive |
| 87.04 | DF | .~.~ Pressure differential |
| 87.05 | DF | .~ Plural sensors |
| 87.06 | DF | .~.~ For single valve |
| 123 | DF | SIPHONS |
| 124 | DF | .~ Plural |
| 125 | DF | .~.~ Tank truck mounted |
| 126 | DF | .~.~ Sequentially discharging in parallel |
| 127 | DF | .~.~.~ From plural tanks |
| 128 | DF | .~.~ Main siphon with auxiliary starting, stopping or resetting siphon |
| 129 | DF | .~.~.~ Sinking or bucket-type float operated main siphon, float emptying auxiliary siphon |
| 130 | DF | .~ With discharge-controlling receiver |
| 131 | DF | .~.~ With float |
| 132 | DF | .~ Periodic or accumulation responsive discharge |
| 133 | DF | .~.~ With manual control |
| 134 | DF | .~.~ Control by filling auxiliary tank |
| 135 | DF | .~.~ Float-operated inlet to siphon |
| 136 | DF | .~.~ Release of trapped air |
| 137 | DF | .~.~.~ Through float-operated vent |
| 138 | DF | .~.~.~ Through liquid trap seal |
| 139 | DF | .~.~.~.~ Auxiliary liquid trap seal |
| 140 | DF | .~ With strainer, filter, separator or sediment trap |
| 141 | DF | .~ With recorder, register, signal, indicator or inspection window |
| 142 | DF | .~ With flow starting, stopping or maintaining means |
| 143 | DF | .~.~ Siphon venting or breaking |
| 144 | DF | .~.~ With leakage or entrained air removal |
| 145 | DF | .~.~ Pressure applied to liquid in supply chamber |
| 146 | DF | .~.~ Plunge or immersion starting |
| 147 | DF | .~.~ Pump or liquid displacement device for flow passage |
| 148 | DF | .~.~.~ Piston |
| 149 | DF | .~.~.~.~ Co-axial within flow passage |
| 150 | DF | .~.~.~ Collapsible bulb |
| 150.5 | DF | .~.~ Siphon inlet movable to and from seat |
| 151 | DF | .~.~ With valve or closure in-flow passage |
| 152 | DF | .~ With means for mounting and/or positioning relative to siphon chamber |
| 153 | DF | .~ Elements |
| 154 | DF | DIVERSE FLUID CONTAINING PRESSURE SYSTEMS |
| 155 | DF | .~ Gas lift valves for wells |
| 156 | DF | .~ Gas pressure discharge of liquids feed traps (e.g., to boiler) |
| 157 | DF | .~.~ Gas pressure controlled by amount of liquids in boiler or discharge receiver |
| 158 | DF | .~.~.~ Pressure connection at liquid level in boiler or discharge receiver |
| 159 | DF | .~.~ Gas pressure controlled by amount of liquid in trap |
| 160 | DF | .~.~.~ Plural trap chambers |
| 161 | DF | .~.~.~.~ Gravitating |
| 162 | DF | .~.~.~ Gravitating vessel |
| 163 | DF | .~.~.~.~ Sinking or bucket type float |
| 164 | DF | .~.~.~.~ Pivoted vessel with fluid passage through pivot |
| 165 | DF | .~.~.~ Float responsive |
| 166 | DF | .~.~.~.~ Liquid control valve positively actuated |
| 167 | DF | .~.~.~.~ Gas condensing type |
| 168 | DF | .~.~.~.~ Gas inlet and outlet valves unitary |
| 169 | DF | .~.~ Gas pressure controlled by manual or cyclic means |
| 170 | DF | .~.~.~ Movable trap chamber |
| 170.1 | DF | .~ Foam control in gas charged liquids |
| 170.2 | DF | .~.~ Level or pressure responsive |
| 170.3 | DF | .~.~ Separate handling of foam |
| 170.4 | DF | .~.~ With conditioning trap or chamber |
| 170.5 | DF | .~.~.~ Recarbonation |
| 170.6 | DF | .~.~.~ With trap or chamber by-pass |
| 171 | DF | .~ Fluid separating traps or vents |
| 172 | DF | .~.~ Liquids separated from liquid |
| 173 | DF | .~.~ Plural discriminating outlets for diverse fluids |
| 174 | DF | .~.~.~ Common actuator for control valves |
| 175 | DF | .~.~.~ Choke or restricted passage gas bleed |
| 176 | DF | .~.~.~.~ From above liquid level |
| 177 | DF | .~.~ Discriminating outlet for liquid |
| 178 | DF | .~.~.~ With alternately operated inlet and outlet valves |
| 179 | DF | .~.~.~ With non-discriminating gas vent or liquid discharge |
| 180 | DF | .~.~.~.~ Abnormal pressure responsive liquid blow-off or drain |
| 181 | DF | .~.~.~.~ Manual control |
| 182 | DF | .~.~.~ With auxiliary inlet or by-pass valve |
| 183 | DF | .~.~.~ With fluid responsive valve |
| 184 | DF | .~.~.~.~ Successively opened valves |
| 185 | DF | .~.~.~.~ Gas collecting float (e.g., inverted bucket) |
| 186 | DF | .~.~.~.~.~ Downstream from valve |
| 187 | DF | .~.~.~.~ Level responsive |
| 188 | DF | .~.~.~.~.~ Weight or pressure |
| 189 | DF | .~.~.~.~.~.~ Gravitating vessel |
| 190 | DF | .~.~.~.~.~.~.~ Sinking or bucket type float |
| 191 | DF | .~.~.~.~.~.~.~.~ Servo-control |
| 192 | DF | .~.~.~.~.~ Float |
| 193 | DF | .~.~.~.~.~.~ With main line gas outlet from trap chamber |
| 194 | DF | .~.~.~.~.~.~ With outlet extending above liquid in trap |
| 195 | DF | .~.~.~.~.~.~ Servo-control |
| 196 | DF | .~.~.~.~.~.~ With pressure balanced outlet valve |
| 197 | DF | .~.~ Discriminating outlet for gas |
| 198 | DF | .~.~.~ With reverse flow stop or pressure regulating valve |
| 199 | DF | .~.~.~ Fluid sensing valve |
| 200 | DF | .~.~.~.~ With vaporized liquid stop |
| 201 | DF | .~.~.~.~.~ With separate return for condensate |
| 202 | DF | .~.~.~.~ Float responsive |
| 203 | DF | .~.~ With liquid emptying means |
| 204 | DF | .~.~.~ Self-emptying |
| 205 | DF | .~ Liquid filling by evacuating container |
| 205.5 | DF | .~ Main line flow displaces additive from shunt reservoir |
| 206 | DF | .~ Gas pressure storage over or displacement of liquid |
| 207 | DF | .~.~ Surge suppression |
| 207.5 | DF | .~.~ With return of liquid to supply |
| 208 | DF | .~.~ Plural units |
| 209 | DF | .~.~ With gas maintenance or application |
| 210 | DF | .~.~.~ Gas carried by or evolved from liquid |
| 211 | DF | .~.~.~.~ Gas injectors |
| 211.5 | DF | .~.~.~ Gas injected by liquid pressure or flow |
| 212 | DF | .~.~.~ Unitary mounting for gas pressure inlet and liquid outlet |
| 213 | DF | .~.~ With liquid level responsive gas vent or whistle |
| 214 | DF | .~.~.~ Combined high and low level responsive |
| 215 | DF | BACK FLOW PREVENTION BY VACUUM BREAKING (E.G., ANTI-SIPHON DEVICES) |
| 216 | DF | .~ Air vent in liquid flow line |
| 216.1 | DF | .~.~ With liquid seal in liquid flow line |
| 216.2 | DF | .~.~.~ Automatic valve in vent line |
| 217 | DF | .~.~ Valved |
| 218 | DF | .~.~.~ With co-acting valve in liquid flow path |
| 219 | DF | LARNER-JOHNSON TYPE VALVES; I.E., TELESCOPING INTERNAL VALVE IN EXPANDED FLOW LINE SECTION |
| 220 | DF | .~ Line condition change responsive |
| 221 | DF | .~ Internal servo-motor with internal pilot valve |
| 222 | DF | .~.~ Pilot controlled passage in nose or needle |
| 223 | DF | INFLATABLE ARTICLE (E.G., TIRE FILLING CHUCK AND/OR STEM) |
| 224 | DF | .~ With pressure-responsive pressure-control means |
| 224.5 | DF | .~.~ Pulsating |
| 225 | DF | .~.~ Diaphragm, bellows or expansible tube |
| 226 | DF | .~.~ Co-axial inflation and relief valves |
| 227 | DF | .~ With gauge or indicator |
| 228 | DF | .~.~ With deflating means |
| 229 | DF | .~.~ Selectively connected |
| 230 | DF | .~ Stem attached relief valve |
| 231 | DF | .~ With coupling means |
| 232 | DF | .~ With cap |
| 233 | DF | .~.~ Valve actuating, assembling or locking means on cap |
| 234 | DF | .~.~.~ Valve manually seated |
| 234.5 | DF | .~ Removable valve head and seat unit (valve insides) |
| 234.6 | DF | WITH VEHICLE GUIDE OR SUPPORT, E.G., SERVICE STATION |
| 236.1 | DF | DISTRIBUTION SYSTEMS INVOLVING GEOGRAPHIC FEATURES |
| 237 | DF | WITH CLEANER, LUBRICATION ADDED TO FLUID OR LIQUID SEALING AT VALVE INTERFACE |
| 238 | DF | .~ Cleaning or steam sterilizing |
| 239 | DF | .~.~ Reverse fluid flow |
| 240 | DF | .~.~ With separate material addition |
| 241 | DF | .~.~ Steam sterilizing |
| 242 | DF | .~.~ Mechanical cleaning |
| 243 | DF | .~.~.~ Valve grinding motion of valve on seat |
| 243.1 | DF | .~.~.~.~ Concentric stem |
| 243.2 | DF | .~.~.~.~ Spring pressed |
| 243.3 | DF | .~.~.~.~ Lost motion permits grinding |
| 243.4 | DF | .~.~.~.~ With swivel-preventing means |
| 243.5 | DF | .~.~.~.~ Nut releasable from body and/or stem |
| 243.6 | DF | .~.~.~.~ With independent grinding actuator |
| 243.7 | DF | .~.~.~.~.~ Separable |
| 244 | DF | .~.~.~ Cleaning member reciprocates in passage |
| 245 | DF | .~.~.~.~ By-pass cleaning |
| 245.5 | DF | .~.~.~.~ Independent actuation |
| 246 | DF | .~ Liquid supplied at valve interface |
| 246.11 | DF | .~.~ Plural feed |
| 246.12 | DF | .~.~ Line pressure feed |
| 246.13 | DF | .~.~ Feed by or with actuation |
| 246.14 | DF | .~.~ Loss control |
| 246.15 | DF | .~.~ Screw feed |
| 246.16 | DF | .~.~.~ With check valve |
| 246.17 | DF | .~.~.~.~ Excess relief |
| 246.18 | DF | .~.~.~.~ Jacking |
| 246.19 | DF | .~.~.~ Jacking |
| 246.2 | DF | .~.~.~ Seating |
| 246.21 | DF | .~.~ Spring biased piston feed |
| 246.22 | DF | .~.~ External pressure |
| 246.23 | DF | .~.~ Gravity or capillary feed |
| 247 | DF | WITH LIQUID VALVES OR LIQUID TRAP SEALS |
| 247.11 | DF | .~ Liquid seal in liquid flow line; flow liquid forms seal |
| 247.13 | DF | .~.~ Valves |
| 247.15 | DF | .~.~.~ Line condition change responsive |
| 247.17 | DF | .~.~.~.~ Plural valves or valve seats |
| 247.19 | DF | .~.~.~.~ Pivoted valve |
| 247.21 | DF | .~.~.~.~ Ball valve |
| 247.23 | DF | .~.~.~.~.~ Seats vertically up |
| 247.25 | DF | .~.~ Seal replenishers |
| 247.27 | DF | .~.~ Plural inlet |
| 247.29 | DF | .~.~ Divided and recombined passages |
| 247.31 | DF | .~.~ Tangential inlet flow |
| 247.33 | DF | .~.~ Downward partition encircles projecting outlet |
| 247.35 | DF | .~.~ Submerged inlet pipe end |
| 247.37 | DF | .~.~.~ Hinged seal bowl |
| 247.39 | DF | .~.~.~ Distinct seal bowl in flow line connected casing |
| 247.41 | DF | .~.~ U-seals |
| 247.43 | DF | .~.~.~ Topside access beneath cover plate closed floor opening |
| 247.45 | DF | .~.~.~ Enlarged upflow leg |
| 247.47 | DF | .~.~.~.~ Topside access opening |
| 247.49 | DF | .~.~.~ Even diameter legs |
| 247.51 | DF | .~.~.~.~ Access opening |
| 248 | DF | .~ Seal for relatively movable valving parts |
| 249 | DF | .~.~ Horizontally moving valve |
| 250 | DF | .~.~.~ Rotary |
| 251.1 | DF | .~ Liquid valves |
| 252 | DF | .~.~ Branched passage for sealing liquid |
| 253 | DF | .~.~ With auxiliary means for varying liquid level |
| 254 | DF | .~.~ With baffle |
| 255 | DF | PLURAL TANKS OR COMPARTMENTS WITH PARALLEL FLOW |
| 256 | DF | .~ Sequentially filled and emptied (e.g., holding type) |
| 257 | DF | .~.~ With relative rotation of tank group and filling head |
| 258 | DF | .~.~.~ With rotary filling and emptying head |
| 259 | DF | .~ With housings, supports or stacking arrangements |
| 260 | DF | .~ Battery or electrolytic cell replenishment |
| 261 | DF | .~.~ Barometric supply |
| 262 | DF | .~ Flow dividing compartments |
| 263 | DF | .~ Tank type manifold (i.e., one tank supplies or receives from at least two others) |
| 264 | DF | .~ Tank within tank |
| 265 | DF | .~ With cross connecting passage |
| 266 | DF | .~ With manifold or grouped outlets |
| 267 | DF | .~.~ Tank truck type |
| 268 | DF | WITH HOLDER FOR SOLID, FLAKY OR PULVERIZED MATERIAL TO BE DISSOLVED OR ENTRAINED |
| 269 | DF | CONVERTIBLE |
| 269.5 | DF | .~ Reversible check |
| 270 | DF | .~ Unit orientable in a single location between plural positions |
| 270.5 | DF | .~.~ Reversible stop and vent or waste |
| 271 | DF | .~ Units interchangeable between alternate locations |
| 272 | DF | HYDRANT TYPE |
| 273 | DF | .~ Water crane type |
| 274 | DF | .~.~ Spout operated valve |
| 275 | DF | .~.~ Rotating riser |
| 276 | DF | .~.~.~ Spout articulated to riser |
| 277 | DF | .~.~.~ Vertically movable riser |
| 278 | DF | .~.~ Extensible spout |
| 279 | DF | .~.~ Spout articulated to riser |
| 280 | DF | .~ Plural riser |
| 281 | DF | .~ Expansible chamber operated by valve actuator for draining riser |
| 282 | DF | .~ With pump or ejector |
| 283 | DF | .~ Removable valve and valve seat |
| 284 | DF | .~.~ With extension to facilitate removal |
| 285 | DF | .~ Removable valve with supplemental check valve |
| 286 | DF | .~ Movable riser actuated valve |
| 287 | DF | .~.~ Reciprocating riser |
| 288 | DF | .~.~.~ Piston type valve |
| 289 | DF | .~ Balanced valve |
| 290 | DF | .~ Valve actuator extends laterally from bottom of riser |
| 291 | DF | .~ Valve actuator outside riser |
| 292 | DF | .~.~ Lever actuator |
| 293 | DF | .~.~ With casing, flush with ground or pavement surface |
| 294 | DF | .~ With casing |
| 295 | DF | .~.~ Flush with ground or pavement surface |
| 296 | DF | .~.~ Cap, cover or hood |
| 297 | DF | .~.~ With heater |
| 298 | DF | .~ With actuator lubricating means |
| 299 | DF | .~ With valve at outlet |
| 300 | DF | .~ With supplemental valve |
| 301 | DF | .~ Protection against freezing |
| 302 | DF | .~.~ Stop and waste |
| 303 | DF | .~.~.~ With disabling means |
| 304 | DF | .~.~.~ Separate relatively movable valves with single actuator |
| 305 | DF | .~.~.~.~ Unidirectional abutting connection between main valve or actuator and waste valve |
| 306 | DF | .~.~.~.~ With screw or gear in actuating mechanism |
| 307 | DF | .~.~.~ Reciprocating relatively fixed valves |
| 308 | DF | .~.~.~.~ Waste through lower valve guide |
| 309 | DF | REVERSING VALVES - REGENERATIVE FURNACE TYPE |
| 310 | DF | .~ With cooling |
| 311 | DF | .~ Rotary reversing valve |
| 312 | DF | WITH LEAKAGE OR DRIP COLLECTING |
| 313 | DF | .~ Relatively movable receptacle or drain pipe and outlet |
| 314 | DF | .~ Collector for waste liquid derived from solid, gas or vapor |
| 315 | DF | WITH REPAIR, TAPPING OR ASSEMBLY MEANS |
| 316 | DF | .~ With holding means functioning only during transportation assembly or disassembly |
| 317 | DF | .~ Tapping a pipe, keg, or apertured tank under pressure |
| 318 | DF | .~.~ With aperture forming means |
| 319 | DF | .~.~ Imperforate closure removing and holding tap |
| 320 | DF | .~.~ With valved closure or bung |
| 321 | DF | .~.~.~ Combined rotary and longitudinal movement of valve |
| 322 | DF | .~.~.~ Longitudinal movement of valve |
| 323 | DF | .~.~.~ Rotary movement of valve |
| 324 | DF | .~.~ With core ejectors |
| 325 | DF | .~.~.~ Impact operated |
| 326 | DF | .~ Foot valve extraction from top of enclosure |
| 327 | DF | .~ With disassembly tool engaging feature |
| 328 | DF | .~.~ Wrench engaging lugs |
| 329 | DF | .~ With provision of alternate wear parts |
| 329.01 | DF | .~.~ Valve heads and/or seats |
| 329.02 | DF | .~.~.~ Opposite duplicate surfaces of unitary structure |
| 329.03 | DF | .~.~.~.~ Homogeneous material |
| 329.04 | DF | .~.~.~.~.~ Valve heads |
| 329.05 | DF | .~.~.~ Different portions of continuous surfaces |
| 329.06 | DF | .~.~.~ Successively used adjacent independent elements |
| 329.1 | DF | .~ Removable valve with normally disabled supplemental check valve |
| 329.2 | DF | .~.~ Check valve disabled by normally movable main valve part |
| 329.3 | DF | .~.~.~ Ball check |
| 329.4 | DF | .~.~.~ Spring bias |
| 330 | DF | NON-VALVING MOTION OF THE VALVE OR VALVE SEAT |
| 331 | DF | .~ Rotary motion of a reciprocating valve |
| 332 | DF | .~.~ Turbine on valve |
| 333 | DF | .~.~ Manual rotating means |
| 334 | DF | WITH HEATING OR COOLING OF THE SYSTEM |
| 335 | DF | .~ With burner |
| 336 | DF | .~.~ Flue extending through fluid |
| 337 | DF | .~ Hot and cold water system having a connection from the hot to the cold channel |
| 338 | DF | .~ Air heated or cooled (fan, fins, or channels) |
| 339 | DF | .~ With diversion of part of fluid to heat or cool the device or its contents |
| 340 | DF | .~ Circulating fluid in heat exchange relationship |
| 341 | DF | .~ With electric heating element |
| 342 | DF | WITH FLUID SYSTEM SUPPORT FOR WORKMAN OR NON-SYSTEM MATERIAL |
| 343 | DF | WITH CASING, SUPPORT, PROTECTOR OR STATIC CONSTRUCTIONAL INSTALLATIONS |
| 899 | DF | .~ Vehicle |
| 345 | DF | .~.~ Locomotive |
| 346 | DF | .~.~.~ Boiler or steam dome |
| 347 | DF | .~.~ Railway car |
| 348 | DF | .~.~.~ Car frame |
| 349 | DF | .~.~.~ End of car |
| 350 | DF | .~.~.~ Roof, wall or floor |
| 351 | DF | .~.~ Automotive |
| 352 | DF | .~.~.~ Steering post or wheel |
| 353 | DF | .~.~.~ Dash |
| 354 | DF | .~.~.~ Floor or frame |
| 355 | DF | .~.~.~ Fender or running board |
| 355.12 | DF | .~.~ With hose reel storage means |
| 899.1 | DF | .~.~ Guided by means of track or guideway |
| 899.2 | DF | .~.~ Aerial or water-supported (e.g., airplane or ship, etc.) |
| 899.3 | DF | .~.~ With retractable or nonuse-positionable support wheel |
| 899.4 | DF | .~.~ Vehicle supports fluid compressor and compressed fluid storage tank |
| 355.16 | DF | .~ With hose storage or retrieval means |
| 355.17 | DF | .~.~ With means for plural hoses |
| 355.18 | DF | .~.~ With flow regulation responsive to hose movement |
| 355.19 | DF | .~.~.~ Reel type |
| 355.2 | DF | .~.~ With retrieval means |
| 355.21 | DF | .~.~.~ Power stop or brake |
| 355.22 | DF | .~.~.~.~ Responsive to position of hose in casing |
| 355.23 | DF | .~.~.~ Biased to retracted position |
| 355.24 | DF | .~.~.~.~ Boom type |
| 355.25 | DF | .~.~.~.~ Weighted |
| 355.26 | DF | .~.~ Reel with support therefor |
| 355.27 | DF | .~.~.~ Ground supported |
| 355.28 | DF | .~.~ Basket or holder for folded coiled hose |
| 356 | DF | .~ Static constructional installations |
| 357 | DF | .~.~ Buildings |
| 358 | DF | .~.~.~ Outside access to portions of the system |
| 359 | DF | .~.~.~ Escutcheon type support |
| 360 | DF | .~.~.~ Wall |
| 361 | DF | .~.~.~.~ Recessed gas outlet box |
| 362 | DF | .~.~.~ Floor installation |
| 363 | DF | .~.~ Ground supporting enclosure |
| 364 | DF | .~.~.~ Valve and meter wells |
| 365 | DF | .~.~.~.~ With means to center well on valve |
| 366 | DF | .~.~.~.~.~ Detachable base plate |
| 367 | DF | .~.~.~.~.~ Vertical casing aligned by valve casing |
| 368 | DF | .~.~.~.~ Combined with actuator |
| 369 | DF | .~.~.~.~.~ Telescopic well casing |
| 370 | DF | .~.~.~.~ Telescopic well casing |
| 371 | DF | .~.~.~.~ Covers |
| 372 | DF | .~.~.~ Pipe line transport |
| 373 | DF | .~.~ Tapering or tower type |
| 374 | DF | .~ Furniture and housing furnishings |
| 375 | DF | .~ Jacketed |
| 376 | DF | .~ Tank supports |
| 377 | DF | .~ Guards and shields |
| 378 | DF | .~.~ Resilient abutment for preventing breakage |
| 379 | DF | .~.~ Nozzle abutment for scratch or damage prevention |
| 380 | DF | .~.~ Cover for beer cooler aperture for faucet |
| 381 | DF | .~.~ Sanitary covers or shields |
| 382 | DF | .~.~ Valve guards |
| 382.5 | DF | .~.~.~ With means for accommodating a detachable actuator |
| 383 | DF | WITH LOCK OR SEAL |
| 384 | DF | .~ With seal |
| 384.2 | DF | .~ Common lock and valve actuator |
| 384.4 | DF | .~.~ Combination lock |
| 384.6 | DF | .~.~ Biased valve |
| 384.8 | DF | .~.~ Mechanical movement between lock and valve |
| 385 | DF | .~ Locks against rotary motion |
| 386 | DF | LIQUID LEVEL RESPONSIVE OR MAINTAINING SYSTEMS |
| 387 | DF | .~ Washing machine cycle control |
| 388 | DF | .~ Liquid excluding devices for gas inlet or outlets |
| 389 | DF | .~ With second diverse control |
| 390 | DF | .~.~ Manual control |
| 391 | DF | .~ Control of both inflow and outflow of tank |
| 392 | DF | .~ Electrical characteristic sensing |
| 393 | DF | .~ With control fluid connection at desired liquid level |
| 395 | DF | .~ Control of outflow from tank |
| 396 | DF | .~.~ Self-emptying tanks |
| 397 | DF | .~.~.~ By float |
| 398 | DF | .~.~ By float |
| 399 | DF | .~.~.~ Low level safety cut-off |
| 400 | DF | .~ With supplemental or safety closing means or bias |
| 401 | DF | .~.~ Sinking or bucket type float |
| 402 | DF | .~.~ Gravitating tank |
| 403 | DF | .~ By weight of accumulated fluid |
| 404 | DF | .~.~ In sinking or bucket type float |
| 405 | DF | .~.~ Oil burner fuel overflow preventing safety cut-offs |
| 406 | DF | .~.~ In communicating measuring vessel |
| 407 | DF | .~.~.~ Top and bottom connections |
| 408 | DF | .~.~ In gravitating tank |
| 409 | DF | .~ By float controlled valve |
| 410 | DF | .~.~ Valve opened by external means, closing or closing control by float |
| 411 | DF | .~.~ Single float controls plural valves |
| 412 | DF | .~.~ Servo relay operation of control |
| 413 | DF | .~.~.~ Fluid pressure |
| 414 | DF | .~.~.~.~ Flexible diaphragm valve |
| 415 | DF | .~.~.~.~ From tank |
| 416 | DF | .~.~ Quick acting |
| 417 | DF | .~.~.~ Pilot float released |
| 418 | DF | .~.~.~ Over center mechanism |
| 419 | DF | .~.~.~.~ Shifting weight |
| 420 | DF | .~.~.~ Trip mechanism |
| 421 | DF | .~.~.~.~ Weight or spring bias |
| 422 | DF | .~.~.~ Lost motion mechanism |
| 423 | DF | .~.~ Plural floats |
| 424 | DF | .~.~ With counter-balance |
| 425 | DF | .~.~.~ Within tank |
| 426 | DF | .~.~ Level adjustment or selection means |
| 427 | DF | .~.~ With float leakage disposal |
| 428 | DF | .~.~ In separate communicating float chamber |
| 429 | DF | .~.~ Rectilinearly traveling float |
| 430 | DF | .~.~.~ Float co-axial with valve or port |
| 431 | DF | .~.~.~.~ Float is spreader or anti-splash means |
| 432 | DF | .~.~.~.~ Float surrounds inlet pipe |
| 433 | DF | .~.~.~.~ Float rigid with valve |
| 434 | DF | .~.~ Float arm operated valve |
| 435 | DF | .~.~.~ With valve retarder or cushion means |
| 436 | DF | .~.~.~ With flow guide or restrictor |
| 437 | DF | .~.~.~.~ External hood or deflector or annular outlet surrounding the inlet pipe |
| 438 | DF | .~.~.~ Movable nozzle or inlet terminal |
| 439 | DF | .~.~.~ Valve removable from outside container |
| 440 | DF | .~.~.~ With U-shaped inlet pipe having terminal valve |
| 441 | DF | .~.~.~ With refill pipe |
| 442 | DF | .~.~.~ Assembly mounted on and having reciprocating valve element co axial with inlet pipe |
| 443 | DF | .~.~.~.~ Horizontal or side entering pipe |
| 444 | DF | .~.~.~.~ Vertical inlet riser |
| 445 | DF | .~.~.~ With toggle or second lever connected to valve |
| 446 | DF | .~.~.~ With interposed cam, gear or threaded connection |
| 447 | DF | .~.~.~ Rotary valve element |
| 448 | DF | .~.~.~ Pivoted valve |
| 449 | DF | .~.~.~ Ball valves |
| 450 | DF | .~.~.~ Balanced valves |
| 451 | DF | .~.~.~ Flexible valve |
| 453 | DF | .~ Barometric |
| 454 | DF | .~.~ With shut-off between supply tank and receiver |
| 454.2 | DF | REMOVABLE VALVE HEAD AND SEAT UNIT |
| 454.4 | DF | .~ Pump type |
| 454.5 | DF | .~ Threaded into valve casing |
| 454.6 | DF | .~ Retained by bonnet or closure |
| 455 | DF | LINE CONDITION CHANGE RESPONSIVE VALVES |
| 456 | DF | .~ Safety cut-off requiring reset |
| 457 | DF | .~.~ Thermal |
| 458 | DF | .~.~ Responsive to both high and low pressure or velocity |
| 459 | DF | .~.~ Responsive to change in rate of flow |
| 460 | DF | .~.~.~ Excessive flow cut-off |
| 461 | DF | .~.~ High pressure cut-off |
| 462 | DF | .~.~ Reset by pressure equalization valve or by-pass |
| 463 | DF | .~.~ Fluid released trip |
| 464 | DF | .~.~ Fluid counter-biased or unseated valve |
| 465 | DF | .~.~.~ With mechanical stop against reopening |
| 466 | DF | .~.~.~ With fluid pressure seating of valve |
| 467 | DF | .~ Fluid opened valve requiring reset |
| 467.5 | DF | .~ Consistency responsive |
| 468 | DF | .~ Thermal responsive |
| 469 | DF | .~ Pop valves |
| 470 | DF | .~.~ Pop closing valves |
| 471 | DF | .~.~ Pop pressure reactor in inflow to valve |
| 472 | DF | .~.~ Pop pressure reactor in branched released path |
| 473 | DF | .~.~.~ Separate relief valves or valves for each branch |
| 474 | DF | .~.~ Lost motion between pop pressure reactor and valve |
| 475 | DF | .~.~ Adjustable choke |
| 476 | DF | .~.~.~ Annular lip or baffle |
| 477 | DF | .~.~.~.~ On movable valve part |
| 478 | DF | .~.~.~.~ Screw threaded |
| 479 | DF | .~ Combustion engine induction type |
| 480 | DF | .~.~ Valve in auxiliary inlet to induction line |
| 481 | DF | .~.~ With manual modifier |
| 482 | DF | .~.~ With suction compensator |
| 483 | DF | .~.~ With separate reactor surface |
| 484 | DF | .~.~ Unbalanced pivoted valve (e.g., unbalanced butterfly type) |
| 484.2 | DF | .~ Line flow effect assisted |
| 484.4 | DF | .~.~ Reactor surface normal to flow |
| 484.6 | DF | .~.~ Reactor surface separated from flow by apertured partition |
| 484.8 | DF | .~.~.~ Through separate aperture |
| 485 | DF | .~ Pilot or servo controlled |
| 486 | DF | .~.~ Responsive to change in rate of fluid flow |
| 487 | DF | .~.~.~ Control by pressures across flow line valve |
| 487.5 | DF | .~.~ Electrically actuated valve |
| 488 | DF | .~.~ Fluid pressure type |
| 489 | DF | .~.~.~ Choked or throttled pressure type |
| 490 | DF | .~.~.~.~ Pilot valve within main valve head |
| 491 | DF | .~.~.~.~ Choked passage through main valve head |
| 489.3 | DF | .~.~.~.~ Loose fitting piston |
| 489.5 | DF | .~.~.~.~ Pilot controls supply to pressure chamber |
| 492 | DF | .~.~.~ Single acting fluid servo |
| 492.5 | DF | .~.~.~.~ Spring biased |
| 493 | DF | .~ Bi-directional flow valves |
| 493.1 | DF | .~.~ One head and seat carried by head of another |
| 493.2 | DF | .~.~.~ Supporting valve only spring biased |
| 493.3 | DF | .~.~.~ Supporting valve spring carried by supporting valve |
| 493.4 | DF | .~.~.~.~ Spring stop on supported valve stem |
| 493.5 | DF | .~.~.~.~ Spring abuts guide for supported valve stem |
| 493.6 | DF | .~.~.~ Both valves spring biased |
| 493.7 | DF | .~.~ Axes of ports perpendicular |
| 493.8 | DF | .~.~ Axes of ports parallel |
| 493.9 | DF | .~.~ Axes of ports co-axial |
| 494 | DF | .~ With separate connected fluid reactor surface |
| 495 | DF | .~.~ With manual or external control for line valve |
| 496 | DF | .~.~ Valve closes in responses to reverse flow |
| 497 | DF | .~.~ Responsive to change in rate of fluid flow |
| 498 | DF | .~.~.~ Valve closes in response to excessive flow |
| 499 | DF | .~.~.~ Turbine or swinging vane type reactor |
| 500 | DF | .~.~.~ Expansible chamber subject to differential pressures |
| 501 | DF | .~.~.~.~ Pressures across fixed choke |
| 502 | DF | .~.~.~.~ With Venturi tube having a connection to throat |
| 503 | DF | .~.~.~.~ Pressures across flow line valve |
| 504 | DF | .~.~.~ Movable deflector or choke |
| 505 | DF | .~.~ With opening bias (e.g., pressure regulator) |
| 505.11 | DF | .~.~.~ With relief valve |
| 505.12 | DF | .~.~.~ Multi-stage |
| 505.13 | DF | .~.~.~ Senses inlet pressure |
| 505.14 | DF | .~.~.~ Bias variable during operation |
| 505.15 | DF | .~.~.~.~ Ancillary reactor surface responds to inlet pressure |
| 505.16 | DF | .~.~.~.~ Liquid transfer |
| 505.17 | DF | .~.~.~.~ Weight |
| 505.18 | DF | .~.~.~ Balanced valve |
| 505.19 | DF | .~.~.~ Liquid level responsive gas flow control |
| 505.2 | DF | .~.~.~ With protective separator |
| 505.21 | DF | .~.~.~ Main flow through isolated reactor chamber |
| 505.22 | DF | .~.~.~ Through external pipe |
| 505.23 | DF | .~.~.~.~ Modified valve casing |
| 505.24 | DF | .~.~.~.~ Adjustable external lever |
| 505.25 | DF | .~.~.~ Apertured reactor surface surrounds flow line |
| 505.26 | DF | .~.~.~ Reactor surface separated by apertured partition |
| 505.27 | DF | .~.~.~.~ In valve stem |
| 505.28 | DF | .~.~.~.~.~ Also through reactor surface |
| 505.29 | DF | .~.~.~.~ Valve stem passes through the aperture |
| 505.3 | DF | .~.~.~.~.~ Plural reactor surfaces |
| 505.31 | DF | .~.~.~.~.~ Reactor is an inverted cup having liquid seal |
| 505.32 | DF | .~.~.~.~.~.~ With movement dampener |
| 505.33 | DF | .~.~.~.~.~.~ Valve head in inlet chamber |
| 505.34 | DF | .~.~.~.~.~ Valve head in inlet chamber |
| 505.35 | DF | .~.~.~.~.~.~ Rectilinear valve stem rigid with reactor surface |
| 505.36 | DF | .~.~.~.~ Reactor surface is diaphragm |
| 505.37 | DF | .~.~.~.~.~ With valve closing bias |
| 505.38 | DF | .~.~.~ Reactor surface closes chamber |
| 505.39 | DF | .~.~.~.~ Valve head in inlet chamber |
| 505.4 | DF | .~.~.~.~.~ Reactor surface is inverted cup (float) |
| 505.41 | DF | .~.~.~.~.~ Rectilinear valve stem rigid with reactor surface |
| 505.42 | DF | .~.~.~.~.~ With valve closing bias |
| 505.43 | DF | .~.~.~.~.~.~ In reactor chamber |
| 505.44 | DF | .~.~.~.~ Valve head on yoke |
| 505.45 | DF | .~.~.~.~.~ Yoke has valve closing bias |
| 505.46 | DF | .~.~.~.~ Reactor operatively connected to valve by mechanical movement |
| 505.47 | DF | .~.~.~ With mechanical movement between actuator and valve |
| 506 | DF | .~.~ Plural valves biased closed |
| 507 | DF | .~.~ With means for mounting or connecting to system |
| 508 | DF | .~.~ Valve seat or external sleeve moves to open valve |
| 509 | DF | .~.~ Valve seating in direction of flow |
| 510 | DF | .~.~.~ Flexible diaphragm or bellows reactor |
| 511 | DF | .~ Direct response valves (i.e., check valve type) |
| 512 | DF | .~.~ Plural |
| 512.1 | DF | .~.~.~ Dividing and recombining in a single flow path |
| 512.15 | DF | .~.~.~.~ Integral resilient member forms plural valves |
| 512.2 | DF | .~.~.~ One valve carries head and seat for second valve |
| 512.3 | DF | .~.~.~ Diverse types |
| 512.4 | DF | .~.~.~ Integral resilient member forms plural valves |
| 512.5 | DF | .~.~.~ With common biasing means |
| 513 | DF | .~.~.~ Mechanically interconnected |
| 513.3 | DF | .~.~ With leak passage |
| 513.5 | DF | .~.~.~ Permits flow at valve interface |
| 513.7 | DF | .~.~.~ Bypass in valve casing |
| 514 | DF | .~.~ With retarder or dashpot |
| 514.3 | DF | .~.~.~ End of valve forms dashpot chamber |
| 514.5 | DF | .~.~.~ End of valve moves inside dashpot chamber |
| 514.7 | DF | .~.~.~.~ Enlarged piston on end of valve stem |
| 515 | DF | .~.~ In couplings for coaxial conduits, e.g., drill pipe check valves |
| 515.3 | DF | .~.~.~ Valve seat threaded into a coupling element |
| 515.5 | DF | .~.~.~ Valve seat formed on or carried by a coupling element |
| 515.7 | DF | .~.~.~ Valve seat clamped between coupling elements |
| 516 | DF | .~.~ With means for selecting area of valve or seat |
| 516.11 | DF | .~.~ Single head, plural ports in parallel |
| 516.13 | DF | .~.~.~ Concentric ports |
| 516.15 | DF | .~.~.~ Annular head |
| 516.17 | DF | .~.~.~.~ Central post on seat |
| 516.19 | DF | .~.~.~.~.~ Stop |
| 516.21 | DF | .~.~.~.~.~.~ With guide |
| 516.23 | DF | .~.~.~.~.~ Guide |
| 516.25 | DF | .~.~ Plural seating |
| 516.27 | DF | .~.~.~ Sequential |
| 516.29 | DF | .~.~.~.~ Resilient gasket |
| 517 | DF | .~.~ Biased open |
| 518 | DF | .~.~.~ Oppositely swinging vanes |
| 519 | DF | .~.~.~ Weight biased |
| 519.5 | DF | .~.~.~.~ Ball valves |
| 520 | DF | .~.~.~.~ Edge pivoted valve |
| 521 | DF | .~.~.~ Pivoted valves |
| 522 | DF | .~.~ With external means for opposing bias |
| 523 | DF | .~.~.~ With means for retaining external means in bias opposing position |
| 524 | DF | .~.~ With bias adjustment indicator |
| 843 | DF | .~.~ Resilient material valve |
| 844 | DF | .~.~.~ Having expansible port |
| 845 | DF | .~.~.~.~ Apertured plate |
| 846 | DF | .~.~.~.~ Having exit lip |
| 847 | DF | .~.~.~.~.~ With biasing means |
| 848 | DF | .~.~.~.~.~ Side vent |
| 849 | DF | .~.~.~.~.~ Multiple slit |
| 850 | DF | .~.~.~.~.~ Internally extending mount |
| 851 | DF | .~.~.~ Center flexing strip |
| 852 | DF | .~.~.~ With valve member flexing about securement |
| 853 | DF | .~.~.~.~ Sleeve |
| 854 | DF | .~.~.~.~ Central mount |
| 855 | DF | .~.~.~.~ Flap or reed |
| 856 | DF | .~.~.~.~.~ With stop |
| 857 | DF | .~.~.~.~.~ With spring |
| 858 | DF | .~.~.~.~.~ With weight |
| 859 | DF | .~.~.~.~ Peripherally secured diaphragm |
| 860 | DF | .~.~.~ Annulus |
| 526 | DF | .~.~ Vacuum relief type |
| 527 | DF | .~.~ Pivoted valves |
| 527.2 | DF | .~.~.~ Head retained by removable closure |
| 527.4 | DF | .~.~.~ Valve head movably connected for accommodation to seat |
| 527.6 | DF | .~.~.~ Valve mounted on end of pipe |
| 527.8 | DF | .~.~.~ Weight biased |
| 528 | DF | .~.~ Reciprocating valves |
| 529 | DF | .~.~.~ Plural biasing means |
| 530 | DF | .~.~.~ Cam means for adjusting and fixing bias |
| 531 | DF | .~.~.~ Varying effective lever arm |
| 532 | DF | .~.~.~ Weight biased |
| 533 | DF | .~.~.~.~ Valve body is the weight |
| 533.11 | DF | .~.~.~.~.~ Ball valves |
| 533.13 | DF | .~.~.~.~.~.~ Removable cage |
| 533.15 | DF | .~.~.~.~.~.~ Separable seat |
| 533.17 | DF | .~.~.~.~.~ Guided head |
| 533.19 | DF | .~.~.~.~.~.~ Cage |
| 533.21 | DF | .~.~.~.~.~.~ Guide stem |
| 533.23 | DF | .~.~.~.~.~.~.~ With closing stop |
| 533.25 | DF | .~.~.~.~.~.~.~ Oppositely disposed |
| 533.27 | DF | .~.~.~.~.~.~.~ Head slidable on guide rod |
| 533.29 | DF | .~.~.~.~.~.~.~ Guide and seat integral unit |
| 533.31 | DF | .~.~.~.~.~.~.~ Guide and closure integral unit |
| 534 | DF | .~.~.~.~ Weight coaxial with valve |
| 535 | DF | .~.~.~ Spring biased |
| 536 | DF | .~.~.~.~ With means to protect spring from fluid |
| 537 | DF | .~.~.~.~ Spring under tension |
| 538 | DF | .~.~.~.~ Piston-type valves |
| 539 | DF | .~.~.~.~ Ball valves |
| 539.5 | DF | .~.~.~.~.~ With follower |
| 540 | DF | .~.~.~.~ Spring coaxial with valve |
| 540.11 | DF | .~.~.~.~.~ Broken valve parts retainer |
| 541 | DF | .~.~.~.~.~ Spring in inlet |
| 542 | DF | .~.~.~.~.~ Valve stem extends through fixed spring abutment |
| 543 | DF | .~.~.~.~.~.~ Yoke or cage-type support for valve stem |
| 543.13 | DF | .~.~.~.~.~ Spring abuts removable valve stem guide |
| 543.15 | DF | .~.~.~.~.~ Head slides on guide-rod concentric with spring |
| 543.17 | DF | .~.~.~.~.~ Spring guides valve head |
| 543.19 | DF | .~.~.~.~.~ Cage-type guide for stemless valves |
| 543.21 | DF | .~.~.~.~.~ Guide means integral and coplanar with valve disk |
| 543.23 | DF | .~.~.~.~.~ Head between spring and guide |
| 544 | DF | WITH MEANS FOR SEPARATING SOLID MATERIAL FROM THE FLUID |
| 545 | DF | .~ Plural separating elements |
| 546 | DF | .~ Sediment chamber |
| 547 | DF | .~ Movable strainer |
| 549 | DF | .~ Hollow strainer, fluid inlet and outlet perpendicular to each other |
| 550 | DF | .~ Planar strainer normal to flow path |
| 551 | DF | WITH INDICATOR, REGISTER, RECORDER, ALARM OR INSPECTION MEANS |
| 552 | DF | .~ Plural |
| 552.5 | DF | .~.~ Unobvious - "combination lock" type |
| 552.7 | DF | .~ Time |
| 553 | DF | .~ Position or extent of motion indicator |
| 554 | DF | .~.~ Electrical |
| 555 | DF | .~.~ Selection from plural branches |
| 556 | DF | .~.~ Indicator element rigidly carried by the movable element whose position is indicated |
| 556.3 | DF | .~.~.~ Movable indicator element is a pointer |
| 556.6 | DF | .~.~.~.~ Pointer integral with handle |
| 557 | DF | .~ Fluid pressure responsive indicator, recorder or alarm |
| 558 | DF | .~ Liquid level responsive indicator, recorder or alarm |
| 559 | DF | .~ Inspection means |
| 560 | DF | COMBINED |
| 561 R | DF | SYSTEMS |
| 561 A | DF | .~ Non-valved flow dividers |
| 562 | DF | .~ Faucet connected, sink drained |
| 563 | DF | .~ Closed circulating system |
| 564 | DF | .~.~ With thermal circulating means (thermo-siphons) |
| 564.5 | DF | .~ Main line as motive fluid for follower-type feeder |
| 565.01 | DF | .~ With pump |
| 565.11 | DF | .~.~ Pumped fluid control |
| 565.12 | DF | .~.~.~ Manual |
| 565.13 | DF | .~.~.~ Fluid pressure responsive |
| 565.14 | DF | .~.~.~.~ And pilot valve |
| 565.15 | DF | .~.~.~.~ Direct response valve |
| 565.16 | DF | .~.~.~ Electric |
| 565.17 | DF | .~.~ Combined with fluid receiver |
| 565.34 | DF | .~.~.~ Reserve or surge receiver |
| 565.18 | DF | .~.~.~ Compressed air supply unit |
| 565.19 | DF | .~.~.~ Hydraulic power unit |
| 565.37 | DF | .~.~.~ Fluid sump |
| 565.22 | DF | .~.~ And jet-aspiration type pump |
| 565.23 | DF | .~.~ Vacuum pump |
| 565.24 | DF | .~.~ Resiliently mounted pump |
| 565.25 | DF | .~.~ Hand pump |
| 565.26 | DF | .~.~ Multiple inlet with multiple outlet |
| 565.27 | DF | .~.~ Downstream cyclic distributor |
| 565.28 | DF | .~.~.~ Distributor part unitary with movable pump part |
| 565.29 | DF | .~.~ Plural |
| 565.3 | DF | .~.~.~ Serial |
| 565.31 | DF | .~.~.~.~ With single motive input |
| 565.32 | DF | .~.~.~.~.~ One pump driven by motive fluid from the other |
| 565.33 | DF | .~.~.~ Parallel |
| 565.35 | DF | .~.~ With pump bypass |
| 565.36 | DF | .~.~ Drain valve actuator mounted on pump |
| 571 | DF | .~ Plural tanks or compartments connected for serial flow |
| 572 | DF | .~.~ Separable with valved-connecting passage |
| 573 | DF | .~.~ Fluid progresses by zigzag flow |
| 574 | DF | .~.~ Plural compartments formed by baffles |
| 575 | DF | .~.~ Plural top-to-bottom connected tanks |
| 576 | DF | .~.~ With communicating opening in common walls of tanks or compartments |
| 577 | DF | .~ Tank with movable or adjustable outlet or overflow pipe |
| 577.5 | DF | .~.~ Horizontally traversing outlet |
| 578 | DF | .~.~ Float-supported outlet |
| 579 | DF | .~.~ Swinging outlet pipe or spout |
| 580 | DF | .~ With running joint between movable parts of system |
| 581 | DF | .~ Movable tank |
| 582 | DF | .~ With antisplash means not in flow passage |
| 583 | DF | .~ System with plural openings, one a gas vent or access opening |
| 584 | DF | .~.~ Access and outlet |
| 585 | DF | .~.~.~ Tank access opening and bottom outlet |
| 586 | DF | .~.~.~.~ Access opening interlock or telltale on outlet valve actuator |
| 587 | DF | .~.~ Tank with gas vent and inlet or outlet |
| 588 | DF | .~.~.~ Vent and inlet or outlet in unitary mounting |
| 589 | DF | .~.~ With vented outlet |
| 590 | DF | .~ Tank with internally extending flow guide, pipe or conduit |
| 590.5 | DF | .~.~ Nondraining overflow type |
| 591 | DF | .~.~ Inverted "U" passage |
| 592 | DF | .~.~ Inlet internally extending |
| 593 | DF | .~ Head-establishing standpipe or expansion chamber (e.g., surge tanks) |
| 624.11 | DF | .~ Programmer or timer |
| 624.12 | DF | .~.~ With independent valve controller |
| 624.13 | DF | .~.~ Repeating cycle |
| 624.14 | DF | .~.~.~ Self-cycling |
| 624.15 | DF | .~.~.~ Variable |
| 624.16 | DF | .~.~.~.~ Attachable and removable element |
| 624.17 | DF | .~.~.~.~ Adjustable cam |
| 624.18 | DF | .~.~ Plural, sequential, valve actuations |
| 624.19 | DF | .~.~.~ Plural trips or trip actuations |
| 624.2 | DF | .~.~.~ Variable cycle |
| 624.21 | DF | .~.~ Clock alarm mechanism controlled |
| 624.22 | DF | .~.~ Biased latch, cam operated |
| 624.27 | DF | .~ Line condition change responsive release of valve |
| 625 | DF | .~ Multi-way valve unit |
| 625.11 | DF | .~.~ Sequential distributor or collector type |
| 625.12 | DF | .~.~ Sequentially progressive opening or closing of plural ports |
| 625.13 | DF | .~.~.~ With subsequent closing of first port |
| 625.14 | DF | .~.~.~.~ Flow combining with flow dividing |
| 625.15 | DF | .~.~.~.~ Rotary |
| 625.16 | DF | .~.~.~.~.~ Plug |
| 625.17 | DF | .~.~ Selective reciprocation or rotation |
| 625.18 | DF | .~.~ Plural noncommunicating flow paths |
| 625.19 | DF | .~.~.~ Rotary plug |
| 625.2 | DF | .~.~ Supply and exhaust |
| 625.6 | DF | .~.~.~ Pilot-actuated |
| 625.61 | DF | .~.~.~.~ Variable orifice-type modulator |
| 625.62 | DF | .~.~.~.~.~ Opposed orifices; interposed modulator |
| 625.63 | DF | .~.~.~.~ Common to plural valve motor chambers |
| 625.64 | DF | .~.~.~.~ Electric |
| 625.65 | DF | .~.~.~ Motor-operated |
| 625.66 | DF | .~.~.~.~ Fluid motor |
| 625.21 | DF | .~.~.~ Rotary valve |
| 625.22 | DF | .~.~.~.~ Plug type |
| 625.23 | DF | .~.~.~.~.~ For plural lines |
| 625.24 | DF | .~.~.~.~.~ Axial and radial flow |
| 625.25 | DF | .~.~.~ Reciprocating valve |
| 625.26 | DF | .~.~.~.~ Combined disk or plug and gate or piston |
| 625.27 | DF | .~.~.~.~ Plural disk or plug |
| 625.67 | DF | .~.~.~.~ Piston valve |
| 625.68 | DF | .~.~.~.~.~ With internal flow passage |
| 625.69 | DF | .~.~.~.~.~ With annular passage (e.g., spool) |
| 625.28 | DF | .~.~ Dividing into parallel flow paths with recombining |
| 625.29 | DF | .~.~.~ Valve with bypass connections |
| 625.3 | DF | .~.~.~ With metering feature |
| 625.31 | DF | .~.~.~ Rotary |
| 625.32 | DF | .~.~.~.~ Plug |
| 625.33 | DF | .~.~.~ Reciprocating |
| 625.34 | DF | .~.~.~.~ Spool |
| 625.35 | DF | .~.~.~.~.~ With internal passage |
| 625.36 | DF | .~.~.~.~.~ Unequal heads |
| 625.37 | DF | .~.~.~.~ Piston |
| 625.38 | DF | .~.~.~.~.~ With internal flow passage |
| 625.39 | DF | .~.~.~.~.~.~ Sequential opening or closing of serial ports in single flow line |
| 625.4 | DF | .~.~ Multiple inlet with single outlet |
| 625.41 | DF | .~.~.~ Rotary valve |
| 625.42 | DF | .~.~ Selective opening of plural ports |
| 625.43 | DF | .~.~ Four port reversing valves |
| 625.44 | DF | .~.~ Pivoted valve unit |
| 625.45 | DF | .~.~.~ Gate |
| 625.46 | DF | .~.~ Rotary valve unit |
| 625.47 | DF | .~.~.~ Plug |
| 625.48 | DF | .~.~ Reciprocating valve unit |
| 625.49 | DF | .~.~.~ Combined disk or plug and gate or piston |
| 625.5 | DF | .~.~.~ Plural disk or plug |
| 626 | DF | .~ Plural petcocks |
| 627 | DF | .~ Sequential distributor or collector type |
| 627.5 | DF | .~ Sequentially closing and opening alternately seating flow controllers |
| 628 | DF | .~ Sequentially progressive opening or closing of plural valves |
| 629 | DF | .~.~ Pressure equalizing or auxiliary shunt flow |
| 630 | DF | .~.~.~ One valve seats against other valve (e.g., concentric valves) |
| 630.11 | DF | .~.~.~.~ Locomotive throttle |
| 630.12 | DF | .~.~.~.~ Gate |
| 630.13 | DF | .~.~.~.~ With balancing chamber |
| 630.14 | DF | .~.~.~.~ First valve moves second valve |
| 630.15 | DF | .~.~.~.~ Actuator moves both valves |
| 630.16 | DF | .~.~ With subsequent closing of first opened port |
| 630.17 | DF | .~.~.~ Simultaneously moved port controllers |
| 630.18 | DF | .~.~ Screw-actuated differential valves |
| 630.19 | DF | .~.~ Lost motion |
| 630.2 | DF | .~.~.~ Cam determines sequence |
| 630.21 | DF | .~.~.~ Rotary concentric valves |
| 630.22 | DF | .~.~.~ First valve actuates second valve |
| 635 | DF | .~ With preselecting means for plural valve actuator |
| 636 | DF | .~ With selective motion for plural valve actuator |
| 636.1 | DF | .~.~ Oppositely movable cam surfaces |
| 636.2 | DF | .~.~ Rotation about either of two pivotal axes |
| 636.3 | DF | .~.~ Rotation of actuator arm about its pivot and its axis |
| 636.4 | DF | .~.~ Reciprocation along and rotation about same axis |
| 637 | DF | .~ Valves with separate, correlated, actuators |
| 637.05 | DF | .~.~ Correlated across separable flow path joint |
| 637.1 | DF | .~.~ Interlocked |
| 637.2 | DF | .~.~ Coaxial stems |
| 637.3 | DF | .~.~.~ Rotary |
| 637.4 | DF | .~.~.~.~ And reciprocating |
| 637.5 | DF | .~.~.~.~ Concentric, central valve removable |
| 594 | DF | .~ Plural noncommunicating flow paths |
| 595 | DF | .~.~ With common valve operator |
| 596 | DF | .~ Supply and exhaust |
| 596.12 | DF | .~.~ With bypass |
| 596.13 | DF | .~.~.~ Controlled by supply or exhaust valve |
| 596.14 | DF | .~.~ Pilot-actuated |
| 596.15 | DF | .~.~.~ Common to plural valve motor chambers |
| 596.16 | DF | .~.~.~ Electric |
| 596.17 | DF | .~.~ Motor |
| 596.18 | DF | .~.~.~ Fluid motor |
| 596.1 | DF | .~.~ Biased exhaust valve |
| 596.2 | DF | .~.~.~ Biased closed |
| 597 | DF | .~ Multiple inlet with multiple outlet |
| 598 | DF | .~ Hydraulic brake line (e.g., hill holders) |
| 599 | DF | .~ Dividing into parallel flow paths with recombining |
| 599.1 | DF | .~.~ Flow passage with bypass connections |
| 599.2 | DF | .~.~ Second valve assembly carried by first valve head |
| 600 | DF | .~.~ With foam controlling means (e.g., beer, soda faucets) |
| 601 | DF | .~.~ With common operator for valve in each path |
| 602 | DF | .~ Multiple inlet with single outlet |
| 603 | DF | .~.~ Faucet attachment |
| 888 | DF | .~.~ Combining by aspiration |
| 889 | DF | .~.~.~ Combining of three or more diverse fluids |
| 890 | DF | .~.~.~ Plural motivating fluid jets |
| 891 | DF | .~.~.~ Flow control by varying position of a fluid inlet relative to entrainment chamber |
| 892 | DF | .~.~.~ With selectively operated flow control means in inlet |
| 893 | DF | .~.~.~.~ Flow control means is located in aspirated fluid inlet |
| 894 | DF | .~.~.~.~.~ Single actuator operates flow control means located in both motivating fluid and aspirated fluid inlets |
| 895 | DF | .~.~.~ With condition responsive valve |
| 896 | DF | .~.~ With means to promote mixing or combining of plural fluids |
| 897 | DF | .~.~.~ With selectively operated flow control means |
| 898 | DF | .~.~.~.~ Single actuator operates plural flow control means |
| 605 | DF | .~.~ With flow control |
| 606 | DF | .~.~.~ Valve in each inlet |
| 607 | DF | .~.~.~.~ With common valve operator |
| 861 | DF | .~ With flow control means for branched passages |
| 862 | DF | .~.~ With common valve operator |
| 863 | DF | .~.~.~ For valve having a flexible diaphragm valving member |
| 864 | DF | .~.~.~ For valve having a ball head |
| 865 | DF | .~.~.~ With gearing |
| 866 | DF | .~.~.~ Threaded actuator |
| 867 | DF | .~.~.~ Pivoted or rotary motion converted to reciprocating valve head motion |
| 868 | DF | .~.~.~.~ Spring biased |
| 869 | DF | .~.~.~ Having fluid actuator |
| 870 | DF | .~.~.~ With electrical actuation |
| 871 | DF | .~.~.~ Spring biased |
| 872 | DF | .~.~ With valve or movable deflector at junction |
| 873 | DF | .~.~.~ Movable deflector spout in lateral port |
| 874 | DF | .~.~.~ Valve or deflector is tubular passageway |
| 875 | DF | .~.~.~ Pivoted valve or deflector |
| 876 | DF | .~.~.~ Rotary valve or deflector |
| 877 | DF | .~.~ Biased valved |
| 878 | DF | .~.~.~ Spring bias |
| 879 | DF | .~.~.~.~ For valve having a ball head |
| 880 | DF | .~.~.~.~ With threaded actuator |
| 881 | DF | .~.~.~.~ Spring coaxial with valve |
| 882 | DF | .~.~.~.~.~ Biased open |
| 883 | DF | .~.~ Single inlet with multiple distinctly valved outlets |
| 884 | DF | .~.~ Sectional block structure |
| 885 | DF | .~.~ With fluid actuator |
| 886 | DF | .~.~ With threaded actuator |
| 887 | DF | .~.~ Containing rotary valve |
| 613 | DF | .~ Flow path with serial valves and/or closures |
| 614 | DF | .~.~ Separable flow path section, valve or closure in each |
| 614.01 | DF | .~.~.~ Common joint and valve seat faces, or sections joined by closing members |
| 614.02 | DF | .~.~.~ Each valve and/or closure operated by coupling motion |
| 614.03 | DF | .~.~.~.~ Linear motion of flow path sections operates both |
| 614.04 | DF | .~.~.~.~.~ Valves actuate each other |
| 614.05 | DF | .~.~.~ Valve- or closure-operated by coupling motion |
| 614.06 | DF | .~.~.~ Coupling interlocked with valve, or closure or actuator |
| 614.11 | DF | .~.~ Common actuator |
| 614.12 | DF | .~.~.~ Delivery cock with terminal valve |
| 614.13 | DF | .~.~.~ Alternately seating |
| 614.14 | DF | .~.~.~.~ Biased valve |
| 614.15 | DF | .~.~.~ Opposed screw |
| 614.16 | DF | .~.~ One valve head provides seat for other head |
| 614.17 | DF | .~.~.~ Also carries head of other valve |
| 614.18 | DF | .~.~ One valve head carries other valve head |
| 614.19 | DF | .~.~ Biased valve with external operator |
| 614.2 | DF | .~.~ Direct response normally closed valve limits direction of flow |
| 614.21 | DF | .~.~ Coaxial oppositely directed seats |
| 615 | DF | .~ Articulated or swinging flow conduit |
| 616 | DF | .~.~ Actuates valve |
| 616.3 | DF | .~.~.~ Plural motions of valve |
| 616.5 | DF | .~.~.~ Reciprocating valve |
| 616.7 | DF | .~.~.~ Rotary valve |
| 797 | DF | FRANGIBLE |
| 798 | DF | WITH COUPLING |
| 799 | DF | .~ Flexible |
| 800 | DF | WITH CLOSURE |
| 801 | DF | FAUCETS AND SPOUTS |
| 802 | DF | MISCELLANEOUS |
| ****************************** | ||
| CROSS-REFERENCE ART COLLECTIONS | ||
| ****************************** | ||
| 900 | DF | BUMPLESS MANUAL TO AUTOMATIC RELAYS |
| 901 | DF | BIASED BALL VALVES WITH OPERATORS |
| 902 | DF | SLUSH PUMP CHECK VALVES |
| 903 | DF | RUBBER VALVE SPRINGS |
| 904 | DF | CUSHION CHECK VALVES |
| 905 | DF | ROTARY VALVES FOR MULTIPLE GAS BURNERS |
| 906 | DF | VALVES BIASED BY FLUID "SPRINGS" |
| 907 | DF | VACUUM-ACTUATED VALVES |
| 908 | DF | RESPIRATOR CONTROL |
| 909 | DF | MAGNETIC FLUID VALVE |
| 910 | DF | DESTRUCTIBLE OR DEFORMABLE ELEMENT CONSTRUCTED OF SPECIFIC MATERIAL |