Patents
Sitemap › H01 - Basic electric elements › H01H - Electric switches; Relays; Selectors; Emergency protective devices › H01H 35 - Switches operated by change of a physical condition
Patents for H01H 35 - Switches operated by change of a physical condition (7,690)
03/1982
03/16/1982CA1120129A1 Circuit device for checking the closed position of a folding door
03/10/1982EP0047202A1 Self-resetting warning actuator for a dual circuit brake system
03/09/1982US4319220 Alarm system for monitoring pressurized vehicular tires
03/09/1982US4318673 Pressure switch and circuit means
03/09/1982CA1119646A1 Temperature responsive control device with improved hydraulic diaphragm
03/02/1982US4318091 Self-resetting warning actuator for a dual circuit brake system
03/02/1982US4318078 Brake fluid level warning apparatus
03/02/1982US4317971 Adjustable pressure and vacuum limit switch valve
02/1982
02/09/1982US4315118 Electric centrifugal switch
02/02/1982US4314227 Electronic pressure sensitive transducer apparatus
02/02/1982US4314122 Control unit and electrical switch construction therefor and methods of making such a control unit and electrical switch construction
01/1982
01/27/1982EP0044342A1 Pressure sensitive piezoelectric polymer signal generator.
01/26/1982US4313102 Level sensing device for dielectric liquids
01/26/1982US4313042 Corrosion indicator
01/26/1982US4312225 Devices for detecting levels
01/19/1982US4311892 Pressure limiting switch for an instrument air circuit
01/19/1982US4311891 Vehicle alarm shaker device with spring damper
01/05/1982US4309149 Vacuum pump switch
01/05/1982US4308725 Refrigerant quantity detecting device for air conditioning of vehicles
12/1981
12/29/1981US4308438 Safety cut-out for motor vehicles
12/24/1981WO1981003715A1 Device for cutting off automatically the electric power supply of a motor,and utilisation thereof
12/23/1981EP0042276A1 Improvements in or relating to warning systems
12/22/1981US4307272 Pressure actuated switch
12/22/1981CA1114917A1 Switch system for indicating changes in liquid level
12/22/1981CA1114865A1 Pressure responsive electric switch, particularly an evaporator thermostat for refrigerators
12/16/1981EP0041830A1 Touch switch
12/15/1981US4306147 Reflection-type photoelectric switching apparatus
12/15/1981US4306127 Corrosion sensor
12/15/1981US4305420 Automatic water or liquid safety valve assembly
12/08/1981US4304546 Fluid flow sensing switch device and method of making the same
11/1981
11/25/1981EP0040360A1 Radiation switch for photoflash unit
11/24/1981US4302641 Float switches with wide differential
11/03/1981CA1111932A1 Viscous damped crash sensor
10/1981
10/27/1981US4297552 Vacuum switch
10/27/1981US4297548 Vital incidental movement monitoring arrangement
10/27/1981US4296603 Temperature responsive piston and cylinder unit having a heater carried thereby
10/20/1981US4296366 Motor starting switch
10/20/1981US4296287 Weatherproofed condition responsive switch
10/20/1981US4295699 Pressure sensitive combination switch and circuit breaker construction
10/13/1981US4295134 Liquid flow detecting device
10/13/1981US4295020 Electrical switch mechanism
10/13/1981US4295019 Water level control device and method of making the same
09/1981
09/30/1981EP0036792A1 Pressure responsive control device
09/30/1981EP0036759A2 Pressure responsive switch actuating mechanism
09/29/1981US4292484 Responsive device for a vehicle tire
09/29/1981CA1109974A1 Push buttons
09/15/1981US4289988 Centrifugal mechanism and switch
09/15/1981US4289327 Air bag device for cars
09/08/1981US4288685 Flow-activated resistance heater for water
09/08/1981US4288666 Reaction switch for an actuator drive system
09/08/1981US4287780 Snap-action member
09/08/1981CA1108673A1 Calibration mechanism for a pressure switch
09/01/1981US4287398 Inertia switches
09/01/1981CA1108267A1 Reversal stop device
08/1981
08/25/1981US4286127 Pressure medium actuated switch
08/18/1981US4284864 Low actuating force switch
08/18/1981US4284863 Velocity change sensor
08/18/1981US4284862 Acceleration switch
08/06/1981WO1981002223A1 Pressure sensitive piezoelectric polymer signal generator
08/04/1981US4282430 Reflection-type photoelectric switching apparatus
08/04/1981US4282413 Liquid flow indicator
07/1981
07/28/1981CA1105780A1 Vibration detector device
07/21/1981US4279256 Nerve stimulation method
07/21/1981CA1105534A1 Pressure-dependent electric switching device
07/14/1981US4278856 Fluid pressure indicator switch apparatus
07/14/1981US4278854 Tilt indicating device
07/14/1981CA1105111A1 Laser workpiece position and presence inspector and machine control governor
07/07/1981CA1104638A1 Overcurrent protection equipment
06/1981
06/23/1981CA1103727A1 Pressure responsive switch with low pressure cutoff
06/17/1981EP0020692A4 Temperature compensated fill valve/pressure switch.
06/16/1981US4273976 Pressure responsive switch device
06/16/1981CA1103289A1 Gas propelled operating mechanism for a circuit breaker
06/09/1981US4272660 Vacuum operated switch
06/09/1981CA1102854A1 Pressure control mechanism comprising snap-acting belleville washer and means for adjusting its snap- pressure
06/02/1981CA1102382A1 Pressure operated electric switch and an alarm system using such switch
05/1981
05/12/1981US4267413 Temperature compensated pressure control
05/12/1981US4266517 Differential pressure switch device responsive to differential pressure and temperature change
05/12/1981CA1101095A1 Material sensing switch
05/05/1981US4266107 Acceleration switch
05/05/1981US4266104 Switch mechanism with independent toggle actuators
04/1981
04/28/1981US4263900 Pressure-responsive surgical tool assembly
04/28/1981CA1100213A1 Material sensing switch
04/28/1981CA1099998A1 Rotation paddle bin level indicator
04/22/1981EP0027408A1 Fly-weight unlatching device
04/21/1981US4263489 Switch adjustment mechanism
04/14/1981US4262216 Float switch
04/14/1981US4262178 Calibration mechanism for a pressure switch
04/14/1981US4262177 Sensor assembly
04/14/1981CA1099366A1 Roof alarm
04/08/1981EP0026449A1 Multiple pressure-switch
04/07/1981USRE30570 Belt switch
04/07/1981US4260862 Condition responsive apparatus having an improved motion transfer member
04/07/1981CA1098988A1 Belt switch
03/1981
03/25/1981EP0025763A1 Control panel with touch-switches
03/24/1981USRE30551 Belt switch
03/17/1981US4256973 Pressure switch and circuit means
03/10/1981US4255630 Multi-circuit electrical switch
03/10/1981US4255629 Crash and rollover cutoff switch
03/10/1981US4255628 Insufficient pressure detector device for motor vehicle tires
03/03/1981US4254312 Temperature compensated fill valve/pressure switch
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