US Patent Class 200
ELECTRICITY: CIRCUIT MAKERS AND BREAKERS-- Main Headings



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Current as of: June, 1999
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CLASS NOTES
1 R  DF  MULTIPLE CIRCUIT CONTROL {12}
600  DF  CAPACITIVE SWITCH
181  DF  ELECTROSTRICTIVE OR ELECTROSTATIC
19.01  DF  PERIODIC {13}
33 R  DF  RETARDED {6}
42.01  DF  PLURAL SWITCHES CONTROL SINGLE CIRCUIT {1}
43.01  DF  SWITCH ACTIVATION INHIBITOR (E.G., UNAUTHORIZED/INADVERTENT USE PREVENTION) {7}
46  DF  PATTERN-SHEET CONTROLLED
47  DF  LIMIT SWITCH
48 R  DF  HIGH-POTENTIAL TYPE {6}
49  DF  POLE SWITCH
50.01  DF  INTERLOCKING {4}
51 R  DF  COMBINED WITH OR ACTUATED BY CONNECTOR COUPLING {10}
52 R  DF  SPECIAL APPLICATION {25}
*  DF  SNAP
400  DF  CONTACT MOVED BY SUDDEN RELEASE OF STORED ENERGY, (E.G., SPRING CHARGER)
401  DF  TOGGLE MECHANISMS
402  DF  SNAP {4}
79  DF  SUSPENDED-WIRE CONTROLLED
80 R  DF  CENTRIFUGAL {2}
81 R  DF  FLUID PRESSURE {8}
84 R  DF  FLOAT {3}
85 R  DF  WEIGHT {2}
86.5  DF  FOOT OPERATED
182  DF  LIQUID CONTACT {17}
500  DF  HELICAL DRIVE MECHANISM
501  DF  GEAR DRIVEN
502  DF  SOLID CONTACT {15}
573  DF  CAM OPERATES CONTACT OR MICROSWITCH {1}
237  DF  ELECTRIC SWITCH DETAILS {5}
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DIGESTS
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DIG 2  DF  Body attached switches
DIG 3  DF  Coin operated
DIG 4  DF  High potential type insulation
DIG 5  DF  Fluid pressure: fluid amplifier
DIG 6  DF  Tie bar
DIG 7  DF  Molded drum
DIG 8  DF  Disturbance
DIG 9  DF  Momentum
DIG 10  DF  Curb, bumper and fender
DIG 11  DF  Web or thread actuated
DIG 12  DF  Burglar screens
DIG 13  DF  Shaft bearing and armature wear indicator switches
DIG 14  DF  Rail or leak indicator
DIG 15  DF  Bin alarm
DIG 16  DF  Gas detector
DIG 17  DF  Gas engine and motor vehicle
DIG 18  DF  Gravity
DIG 19  DF  Gyroscope
DIG 20  DF  Sound and vibration operated
DIG 21  DF  Pencil, counter or dispenser operated
DIG 22  DF  Strain relief, shear pin
DIG 23  DF  Game
DIG 24  DF  Plug holder
DIG 26  DF  Slack cable operated
DIG 27  DF  Thermal magnetic snap
DIG 28  DF  Thermal spring snap
DIG 29  DF  Ball
DIG 30  DF  Fluid conductor
DIG 31  DF  Fluid flow
DIG 32  DF  Speed responsive
DIG 33  DF  Speed synchronizing switch
DIG 34  DF  Recording and reproducing
DIG 35  DF  Weight operated tread/treadless switch
DIG 36  DF  Light operated switches
DIG 37  DF  Hose
DIG 38  DF  Money till drawer operated
DIG 39  DF  Motor vehicle-steering column
DIG 40  DF  Moisture
DIG 41  DF  Liquid contact
DIG 42  DF  Contact welding considerations
DIG 43  DF  Fluid-operated matrix switches
DIG 44  DF  Lubrication-periodic switches
DIG 46  DF  Separators and/or insulators for stacked leaf spring contacts
DIG 47  DF  Light guides for switch indicators (prisms, reflectors, cables, etc.)