US Patent Class 182
FIRE ESCAPE, LADDER, OR SCAFFOLD



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Current as of: June, 1999
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  DF  CLASS NOTES
1  DF  MEANS MAINTAINING STEP LEVER ON HORIZONTALLY PIVOTED LADDER
2.1  DF  MEANS MAINTAINING PLATFORM LEVEL ON ANGULARLY MOVABLE SUPPORT
2.2  DF  .~ Adjustable to plural operating positions
2.3  DF  .~ Swingable support
2.4  DF  .~.~ Of dielectric material
2.5  DF  .~.~ Ladder associated
2.6  DF  .~.~ Providing access to underside of elevated surface
2.7  DF  .~.~ Parallelogram linkage
2.8  DF  .~.~ Foldable hinged support
2.9  DF  .~.~.~ Hydraulically operated
2.11  DF  .~.~ Telescopic support
3  DF  TORSO HARNESS
4  DF  .~ Window washer type
231  DF  .~ Attached to strand wound on reel, and means for retarding unwinding of strand
232  DF  .~.~ Including spring for rewinding strand
233  DF  .~.~ Fluid resistance brake
234  DF  .~.~ Movable, friction brake element applied by centrifugal force
235  DF  .~.~ Friction brake and occupant-operated mechanism for applying brake during descent
5  DF  .~ Strand-engaging, with descent retarder
6  DF  .~.~ Leg or loop type
7  DF  .~.~ With seat
8  DF  .~ Ladder-associated
9  DF  .~ With pole encircling or grasping means
10  DF  INCLINED CABLE SUPPORTING CARRIER TRAVELING THEREALONG
11  DF  .~ Occupant-controlled
12  DF  HORIZONTAL TRAVERSING - ACTUATION, CONTROL, OR RESPONSE
13  DF  .~ Occupant actuation or control
14  DF  .~.~ Occupant-controlled ascent or descent
15  DF  .~.~ Holding means
16  DF  .~ With handle or steering means
17  DF  .~ Holding means
18  DF  WITH INDICATOR, SIGNAL OR ALARM
19  DF  AUTOMATIC CONTROL
20  DF  CONVERTIBLE
21  DF  .~ Ladder
22  DF  .~.~ Ladder of different type
23  DF  .~.~.~ Stepladder prop pivoted to inverted position
24  DF  .~.~.~.~ Stile and prop end abutting
25  DF  .~.~.~.~ With spreader or tie
26  DF  .~.~.~ Stepladder type with variable prop and ladder connection
27  DF  .~.~ Scaffold
28  DF  .~.~ Table
29  DF  .~.~.~ Ironing board
30  DF  .~.~.~.~ Board as pivoted ladder prop
31  DF  .~.~.~.~.~ Crossed leg board support
32  DF  .~.~.~ Wash stand
33  DF  .~.~ Chair or stool
33.2  DF  .~.~.~ Bottom and legs invert to unveil ladder
33.3  DF  .~.~.~ Steps on chair back
33.4  DF  .~.~.~.~ Fixed steps
33.5  DF  .~.~.~ Step withdraws from beneath seat
33.6  DF  .~.~.~.~ End-for-end turnout
34  DF  .~.~ Bed
35  DF  .~ Furniture
36  DF  TRAVERSING, TRACK-MOUNTED
37  DF  .~ With occupant elevating or lowering means
38  DF  .~ With vertically spaced second track
39  DF  .~ Ground- or floor-engaging
40  DF  UPWARDLY EXTENSIBLE FLEXIBLE LADDER OR ESCAPE
41  DF  .~ Self-rigidifying
42  DF  ENDLESS CONVEYER ESCAPE
43  DF  .~ Top and bottom support
44  DF  .~.~ With pivoted or folding attached carrier
45  DF  PITCHED ROOF CONFORMING SCAFFOLD
46  DF  WITH INSULATION
47  DF  .~ Fire or heat shield
48  DF  CHUTE OR ESCAPE TOWER FOR PERSONNEL
49  DF  .~ With ladder
50  DF  WITH PROJECTOR OR PROJECTILE
51  DF  WITH FLUID HANDLING
52  DF  .~ Conduit is support
53  DF  DETACHABLE WINDOW SEAT TYPE
54  DF  .~ With step or additional platform
55  DF  .~ Platform below window
56  DF  .~ Extensible platform
57  DF  .~ Interior wall-engaging means
58  DF  .~.~ Depending
59  DF  .~.~.~ Saddle
60  DF  .~.~.~.~ Wall-clamping means
61  DF  .~.~.~.~ Exterior strut
62  DF  .~.~ With outside strut or brace
62.5  DF  WITH EXTENSIBLE VERTICAL AND NONVERTICAL SECTIONS
63.1  DF  HAVING TRANSPOSITIONING BASE AND ERECTING MEANS
64.1  DF  .~ Ladder pivotably mounted on transpositioning base (e.g., on vehicle)
65.1  DF  .~.~ About vertical axis
66.1  DF  .~.~.~ Extension ladder (i.e., ladder having sliding section)
66.2  DF  .~.~.~.~ Motor operated
67.1  DF  .~.~.~.~ Manually operated
67.2  DF  .~.~.~.~.~ By use of screw
67.3  DF  .~.~.~.~.~ By use of gear
67.4  DF  .~.~.~ Folding ladder
67.5  DF  .~.~.~ Having screw rod for erecting ladder about horizontal pivot
68.1  DF  .~.~ Extension ladder pivotally mounted to be erected about a horizontal axis
68.2  DF  .~.~.~ Having winch means for erecting ladder
68.3  DF  .~.~.~ Having gear means for erecting ladder
69.1  DF  .~.~.~ Having lazy tong extending means
69.2  DF  .~.~.~.~ And winch to actuate lazy tong
69.3  DF  .~.~.~.~ And gear to actuate lazy tong
69.4  DF  .~ Telescopic erecting means
69.5  DF  .~ Erecting means actuated by lazy tong
69.6  DF  .~ And platform elevatable relative to its support
70  DF  WITH STORAGE DEVICE FOR SUPPLE ESCAPE
73  DF  .~ Reel
74  DF  .~.~ Escape of ladder type lowers upon release of latch
75  DF  .~.~.~ With retarder or brake on reel
236  DF  .~.~ With means for retarding unwinding of strand type escape
237  DF  .~.~.~ Including spring for rewinding strand
238  DF  .~.~.~ Fluid resistance brake
239  DF  .~.~.~ Movable, friction brake element applied by centrifugal force
240  DF  .~.~.~ Friction brake and occupant-operated mechanism for applying brake during descent
71  DF  .~ Occupant weight-actuated descent device
72  DF  .~ Occupant-controlled descent retarder
76  DF  .~ Wall-embedded
77  DF  DOOR AND LADDER
78  DF  .~ Door operates ladder
79  DF  .~.~ Guided rigid ladder
80  DF  .~.~.~ Guide on wall or frame
81  DF  .~.~ Door and ladder on opposite sides of wall
82  DF  WALL- OR FLOOR-ATTACHED
83  DF  .~ Wall-mounted platform, with ladder
84  DF  .~.~ Movable platform with movable ladder
85  DF  .~.~ Movable ladder
86  DF  .~.~.~ Pivoted
87  DF  .~ Embedded scaffold support member
88  DF  .~ Retractable or collapsible beneath floor, track-mounted
89  DF  .~ Spring-biased pivoted step or ladder
90  DF  .~ Independent rung or step
91  DF  .~.~ Pivoted
92  DF  .~.~ Readily detachable
93  DF  .~ Ladder
94  DF  .~.~ Wall penetrating operating means
95  DF  .~.~ Folding, rigid components
96  DF  .~.~.~ Parallelogram type
97  DF  .~.~ Pivoted
98  DF  .~.~.~ Normally counterbalanced to inoperative position
99  DF  .~.~ With portion overhanging roof
100  DF  .~ Single pole or strand
101  DF  LADDER WITH VERTICALLY MOVING PLATFORM OR ESCAPE
102  DF  .~ Ladder supports platform
103  DF  .~.~ Stile or prop-guided carriage
104  DF  PIVOTALLY CONNECTED LADDERS, MUTUALLY SUSTAINING
105  DF  .~ Central upright ladder section supported therebetween
106  DF  WITH HANDRAIL OR GUARD FOR LADDER
107  DF  SAFETY DEVICE FOR GROUND-SUPPORTED LADDER
108  DF  .~ Terminal foot or shoe
109  DF  .~.~ Diverse ground-engaging means
110  DF  .~.~ Suction cup
111  DF  .~.~ Pivotal component
112  DF  SAFETY DEVICE, PLATFORM ASSOCIATED
113  DF  .~ Railing
114  DF  WITH SUCKER ROD SUPPORT
115  DF  LADDER AND PLATFORM
116  DF  .~ Platform with ladder as support
117  DF  .~.~ Between spaced ladders
118  DF  .~.~.~ Facing ladders
119  DF  .~.~.~.~ Readily detachable platform
120  DF  .~.~ Detachable step, single ladder
121  DF  .~.~.~ Plural rung-engaging
122  DF  .~.~.~.~ Stile-contacting
123  DF  .~.~ Plural platforms
124  DF  .~.~ Ladder with pivoted ladder prop and pivoted platform
125  DF  .~.~ Platform positioned by ladder and prop divergence
126  DF  .~.~ Prop-pivoted platform
127  DF  LADDER WITH LAND VEHICLE
128  DF  SCAFFOLD SUPPORTED INTERNALLY ON SHAFT
129  DF  COMBINED
130  DF  PLURAL PLATFORMS, COMMON SUPPORT
131  DF  .~ Mounted for relative motion
132  DF  .~ Stepped
133  DF  POLE OR STRAND GRASPING-TYPE CLIMBER
134  DF  .~ Foot- or leg-attachable
135  DF  .~.~ With diverse holding means for occupant
136  DF  .~ Alternate grasping
137  DF  BODY CATCHER
138  DF  .~ Sheet or net type
139  DF  .~.~ Tensioned peripherally
140  DF  .~.~ Folding base
141  DF  PLATFORM WITH ELEVATING OR LOWERING MEANS
142  DF  .~ Suspended
143  DF  .~.~ Simultaneously operable suspension means
144  DF  .~.~.~ Platform continuously level
145  DF  .~.~ Separate (i.e., nonwork) support for suspension means
146  DF  .~.~.~ Platform holding detent coacts with support
147  DF  .~.~ Plural distinct elevating means
148  DF  .~ Operating means on platform
149  DF  .~ Trestle-type support, beam-elevating
150  DF  SUSPENDED PLATFORM
151  DF  KIT OR SEPARABLE PARTS
152  DF  UNITARY FOLDABLE, RIGID SCAFFOLD OR LADDER
153  DF  .~ Trestle
154  DF  .~.~ Crossed leg
155  DF  .~.~ Legs foldable parallel to beam axis in all planes
156  DF  .~ Collapsible ladder
157  DF  .~.~ Lazy tong type
158  DF  .~.~.~ Mechanical or power-extending means
159  DF  .~.~ Parallel moving side, pivoted rung or step
160  DF  .~.~.~ Storage providing component
161  DF  .~.~.~ Plural element stile
162  DF  .~.~.~ With collapsible prop
163  DF  .~.~ Folding stile
164  DF  .~.~.~ Rung-to-rung stile sections
165  DF  LADDER WITH PIVOTED PROP
166  DF  .~ Section extensible below prop pivot
167  DF  .~.~ With step registration
168  DF  .~ Coplanar extension with prop pivoted to lower section
169  DF  .~ Single rear prop, pole type
170  DF  .~ Rear prop, laterally moving
171  DF  .~ Converging and contacting stiles or props
172  DF  .~ Lateral prop
173  DF  .~ Hinged to top-step rear flange
174  DF  .~ Pivoted to top-step cleat
175  DF  .~.~ With cleat spaced spreader or tie
176  DF  .~.~.~ Multiple link folding spreader
177  DF  .~ Overlapping stile and prop
178.1  DF  STACKABLE
178.2  DF  .~ Ladder section
178.3  DF  .~.~ Male and female connecting means
178.4  DF  .~.~ Overlapping sections
178.5  DF  .~ Male and female connecting means
178.6  DF  .~.~ Double-ended pin
179.1  DF  SELF-SUSTAINING
180.1  DF  .~ Ladder
180.2  DF  .~.~ Having supporting base
180.3  DF  .~.~.~ Vertically pivoted to supporting base
181.1  DF  .~ Scaffold horse (e.g., trestle)
182.1  DF  .~.~ Having height adjustable beam
182.2  DF  .~.~.~ By extensible leg brace
182.3  DF  .~.~.~.~ Step-by-step adjustment
182.4  DF  .~.~.~ By slidable leg
182.5  DF  .~.~.~ By extensible leg
183.1  DF  .~.~ Having longitudinally extensible beam
185.1  DF  .~.~ Having unitary leg to beam coupler and brace
186.1  DF  .~.~ Beam clamped by leg actuation
186.2  DF  .~.~.~ Pivotally connected legs
186.3  DF  .~.~ Having leg to beam attaching bracket
186.4  DF  .~.~ Leg coupled directly to beam
186.5  DF  .~.~ Knockdown
186.6  DF  .~ Having height adjustable platform
186.7  DF  .~ Connector for horizontal or diagonal brace
186.8  DF  .~.~ Releasable connector
186.9  DF  .~ Having cantilivered auxillary platform
187  DF  SCAFFOLD EXTERNAL OF SHAFT
188  DF  .~ Horizontally adjustable
189  DF  SINGLE STILE, STRAND OR POLE
190  DF  .~ Flexible
191  DF  .~.~ With sliding carrier
192  DF  .~.~.~ Load-responsive brake
193  DF  .~.~.~ Occupant-actuated brake
194  DF  LADDER
195  DF  .~ Slidable nested single rung units
196  DF  .~ Flexible
197  DF  .~.~ With spacer
198  DF  .~.~.~ Rung-attached
199  DF  .~.~ Plural spaced strand stile member
200  DF  .~ Supporting surface compensating means
201  DF  .~.~ Stile extension
202  DF  .~.~.~ Equalizing extensions
203  DF  .~.~.~ Rung-engaging means
204  DF  .~.~.~ Increment adjustment
205  DF  .~.~.~.~ Ratchet type
206  DF  .~ With hook or grab
207  DF  .~ Extension
208  DF  .~.~ Mechanical or power-extending
209  DF  .~.~ With latch
210  DF  .~.~.~ Section movement actuated
211  DF  .~.~.~.~ Spring-biased latch
212  DF  .~.~.~ With remote control of latch
213  DF  .~.~.~.~ Elevating cable actuated
214  DF  .~ With spacer means
215  DF  .~ Rung sandwiched between elements of composite stile
216  DF  .~ Tie rod assembled
217  DF  .~ With reinforcing means
218  DF  .~.~ Bow string type
219  DF  .~.~ For side rail
220  DF  .~ Independent support for rung
221  DF  LEG OR SHOE ATTACHABLE POLE CLIMBER
222  DF  PLATFORM
223  DF  .~ Relatively movable sections
224  DF  SCAFFOLD HORSE BEAM OR LEG
225  DF  .~ Relatively movable
226  DF  .~.~ Beam clamped by pivoting leg
227  DF  .~.~ With intermediate staff
228.1  DF  RUNG OR RUNG-TO-STILE CONNECTION
228.2  DF  .~ Rung having anti-skid surface
228.3  DF  .~ Bracket-type connection
228.4  DF  .~ Sleeve-type connection
228.5  DF  .~ Rung for a motor vehicle
228.6  DF  .~ Hollow rung
229  DF  PUTLOG OR SPACER
241  DF  MOVABLE STRAND ESCAPE AND MEANS FOR RETARDING TRAVEL OF STRAND
230  DF  MISCELLANEOUS