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