Patents
Patents for H01H 35 - Switches operated by change of a physical condition (7,690)
06/1990
06/12/1990US4932120 Method of making a control device and electrical switch unit therefor
06/07/1990DE3840973A1 Safety switch for motor vehicles
06/05/1990US4931776 Fluid flow sensor with flexible vane
06/05/1990US4931604 Control device
06/05/1990US4931601 Pressure switch having internal vent chamber
06/05/1990EP0333733A4 Trimmable microminiature force-sensitive switch.
06/05/1990CA1270024A1 Multiple disc pressure responsive control device
06/05/1990CA1270023A1 Overpressure switch with ball valve contact
05/1990
05/31/1990WO1990005976A1 High current pressure sensitive interrupters
05/29/1990US4929805 Gas damped deceleration switch
05/29/1990CA1269745A1 Escalator skirt panel deflection switch
05/23/1990EP0369386A2 Photelecric switch
05/22/1990US4927988 In a dynamoelectronic machine
05/22/1990US4927230 Optical switch array provided with a mask having openings of a predetermined pattern and shutters corresponding to the pattern
05/21/1990CA2003443A1 High current pressure sensitive interrupters
05/16/1990EP0368434A2 Magnetically-damped, testable accelerometer
05/15/1990US4926062 Touch control circuit for ornamental lamps and method therefore
05/15/1990US4926049 Reflection type photoelectric switch
05/09/1990EP0366913A2 Photoelectric switching device for a coordinate detection system
05/08/1990US4924043 Contact link for flight controls of aerodynes
05/08/1990CA1268804A1 Three stage pressure switch
05/01/1990US4922234 Sewer alarm
05/01/1990US4922067 Fluid pressure switch having venting means for dispersing back pressure
05/01/1990US4922066 Environmentally protected switch for dynamoelectric machines
05/01/1990US4922065 Temperature-compensating accelerometer
04/1990
04/24/1990US4920240 Method of operating an electric circuit controlling device
04/17/1990US4918267 Vacuum operated circuit breaker
04/17/1990US4917135 Liquid level regulator device
04/17/1990CA1267810A1 Fuel/oil pump
04/10/1990US4916266 Miniature omnidirectional instantly responsive impact switch
04/04/1990EP0360843A1 Impact sensor.
04/03/1990US4914264 Control device having a self-supporting switch unit therein
04/03/1990US4914263 Magnetically-damped, testable accelerometer
03/1990
03/28/1990EP0360460A1 Flow switches
03/28/1990EP0360372A2 Easily serviced fluid pressure operated switch
03/28/1990EP0359980A2 A pressure transducer for measuring the pressure of a fluid, particularly for measuring oil pressure in a vehicle
03/22/1990WO1990003040A1 Vehicle crush zone crash sensor
03/22/1990DE3830719A1 Electric flow heater
03/21/1990EP0359288A2 Collision detecting device for motor vehicle
03/21/1990EP0359090A2 Inclination sensor
03/20/1990US4910419 Overload detection mechanism for motor-driven linear actuator
03/07/1990EP0356444A1 Acceleration switch
02/1990
02/27/1990US4904830 Liquid shut-off system
02/22/1990WO1990001789A1 Gas damped crash sensor
02/21/1990CN1039911A Float bowl hammer left-right circuit switch device
02/20/1990US4902861 Inertia switch
02/20/1990US4901751 Fluid control valve and system with leak detection and containment
02/20/1990CA1266083A1 Touch control adaptor
02/13/1990US4900883 Fluid-operated compound switch
02/13/1990US4900880 Gas damped crash sensor
02/07/1990EP0354169A1 Float switch
02/07/1990EP0353465A2 Pressure operated switchgear
02/07/1990CN1039481A Mechanical transducer
01/1990
01/30/1990CA1265177A1 Pressure control device and method of making the same
01/25/1990WO1990000806A1 Control device, electrical switch unit therefor and methods of making the same
01/25/1990WO1990000734A1 Mechanical transducer
01/25/1990WO1990000482A1 Compact crash sensing switch with air channels and diagnostic system
01/24/1990CN2051780U Rolling ball contact switch
01/23/1990US4895074 Ignition trigger device
01/17/1990EP0351254A1 Mechanical transducer
01/17/1990EP0351042A1 Fluid flow sensor
01/16/1990US4894497 High temperature pressure switch assembly for use with explosion-proof enclosures
01/16/1990US4894496 Auxiliary winding cut-out switch for sump pump motor
01/09/1990US4892985 Vacuum responsive multicontact switch
01/03/1990EP0348461A1 Centrifugally activated switch for a synchronous generating system
01/02/1990US4891479 Control actuator and switch
12/1989
12/27/1989EP0347904A2 Multiple pressure switch
12/26/1989US4890090 Pressure alarm system for motor vehicle tires
12/20/1989CN1006159B Escalator skirt panel deflection switch
12/19/1989US4888455 Water leak detector and method therefor
12/14/1989DE3819459A1 Pressure-controlled electrical switching unit
12/14/1989DE3819458A1 Pressure-controlled electrical switching unit
12/13/1989CN2049402U Oil stream relay for large diameter pipe with low flow
12/06/1989EP0344569A2 Electronic switching device, particularly proximity switch
12/05/1989US4885440 Governor and motor assembly
12/05/1989US4885439 Gas damped deceleration switch
12/05/1989CA1263723A1 Electrical cut off switch
11/1989
11/30/1989WO1989011658A1 Sensor for measuring a motional parameter, in particular crash sensor for a motor vehicle
11/30/1989DE3818134A1 Sensor for detecting a motion parameter, e.g. crash sensor for a motor vehicle
11/29/1989EP0343328A2 Motion detector
11/29/1989CN2048622U Pneumatic switch capable of realizing polarity inversion
11/28/1989US4884067 Motion and position sensing alarm
11/23/1989EP0342356A1 A thermostat safety device
11/21/1989US4882459 Pressure sensitive switch having rugged construction and accurate trip pressure settings
11/15/1989EP0341464A2 Acceleration- or deceleration sensor
11/15/1989CN2047838U Guiding pressure relay
11/08/1989EP0340442A2 Photoelectric switch
11/02/1989WO1989010623A1 Inclination and inertia indicating apparatus
10/1989
10/31/1989US4877927 Extended dwell shock sensing device
10/26/1989DE3900944A1 Switching device which switches in a time-dependent manner
10/11/1989EP0336805A1 High pressure switch
10/11/1989EP0336707A2 Pressure indicator
10/11/1989EP0287558B1 Detector of the inflation pressure of motor vehicle tyres
10/04/1989EP0335700A2 Combined locking mechanism and switch
10/03/1989US4871887 Fluid-actuated pressure switch for an automatic transmission
09/1989
09/27/1989EP0333733A1 Trimmable microminiature force-sensitive switch
09/26/1989US4869265 Biomedical pressure transducer
09/26/1989CA1261945A1 Printed wiring board means with integral dew sensor
09/26/1989CA1261377A1 Pressure actuator switch
09/20/1989EP0333409A2 Pressure responsive switch apparatus having improved longevity and widened tolerance for location of the switching diaphragm
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