| Patents for H01H 35 - Switches operated by change of a physical condition (7,690) |
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| 09/19/1989 | US4868906 Centrifugally activated switch for a synchronous generating system |
| 09/19/1989 | US4868382 Fiber-optic material sensing switch |
| 09/19/1989 | US4868356 Easily serviced fluid pressure operated switch |
| 09/19/1989 | US4867095 Differential pressure indicator |
| 09/13/1989 | CN2044374U Micro electricity contact electronic pressure controlled switch |
| 09/12/1989 | US4866379 Tilt sensor having central first bottom surface and second contiguous bottom surface at an angle thereto |
| 09/06/1989 | EP0331109A2 Liquid level regular device |
| 09/06/1989 | CN1035391A Automatic breaker for electrically boiling water |
| 09/05/1989 | US4864287 Apparatus and method for calibrating a motor monitor by reading and storing a desired value of the power factor |
| 09/05/1989 | US4864087 Burglar alarm including a reed relay actuated in response to a vibrating magnet to produce an alarm signal |
| 09/05/1989 | US4862723 Method and apparatus for producing precise length devices |
| 08/30/1989 | EP0329688A1 Pressure limited differential pressure switch. |
| 08/29/1989 | US4861953 Pressure switch apparatus having improved longevity and widened tolerence for location of stationary contact |
| 08/24/1989 | WO1989007830A1 Impact sensor |
| 08/23/1989 | EP0329083A2 Photoelectric switching apparatus of reflection type |
| 08/23/1989 | EP0328926A2 Pressure switch |
| 08/22/1989 | US4859818 Electric inertia-actuated circuit breaker |
| 08/22/1989 | US4858647 Attitude-insensitive, by-pass sensor |
| 08/22/1989 | US4858303 Method of assembling a dynamoelectric machine |
| 08/16/1989 | CN2043003U Gutta-percha temp. control switch |
| 08/16/1989 | CN2043002U Safety electrical switch |
| 08/15/1989 | US4857680 Acceleration sensor |
| 08/15/1989 | US4856182 Method of assembling a switch device with a supporting means thereof |
| 08/09/1989 | EP0327065A2 Rotation operating device of variable resistor |
| 08/09/1989 | EP0327024A2 Rotation operating device of variable resistor |
| 08/08/1989 | US4855590 Infrared touch input device having ambient compensation |
| 08/08/1989 | US4855545 Pneumatic to electrical switch assembly |
| 08/08/1989 | US4855544 Multiple level miniature electromechanical accelerometer switch |
| 08/08/1989 | US4854165 Apparatus for testing electrical components |
| 08/02/1989 | EP0326028A2 Pressure switch for tire pressure detection |
| 08/02/1989 | CN2042262U Multifunction remote-controlling colour tv turnoff device |
| 08/01/1989 | US4853506 Pressure actuated snap switch |
| 08/01/1989 | US4853504 Triple action pressure switch apparatus |
| 08/01/1989 | US4853503 Pressure switch apparatus having improved longevity and widened tolerance for location of stationary contact |
| 07/27/1989 | WO1989006873A1 Rapid pressure rise circuit |
| 07/26/1989 | CN2041854U Electron speed relay |
| 07/25/1989 | US4851689 Photodetecting circuit |
| 07/25/1989 | US4851627 Compact pressure sensitive switch for use in detecting fluid pressure changes |
| 07/18/1989 | US4848151 Liquid level detector |
| 07/13/1989 | DE3744604A1 Electrical switch |
| 07/05/1989 | EP0323022A1 Fluid damped acceleration sensor |
| 07/05/1989 | EP0322422A1 Pressure checked electrical pressure switch |
| 07/05/1989 | CN2040670U Electronic automatic switch |
| 07/04/1989 | US4845322 Plunger type fluid pressure switch |
| 07/04/1989 | US4845321 Screen opening and closing drive device |
| 06/27/1989 | US4843193 Reservoir for a hydraulic brake system |
| 06/27/1989 | CA1256532A1 Data input system including a keyboard having no moving parts |
| 06/22/1989 | DE3742202A1 Acceleration sensor |
| 06/21/1989 | CN2039875U Conducting liquid level relay |
| 06/20/1989 | US4841271 Trip-free resetting mechanism for an on-off unit |
| 06/14/1989 | CN1004515B Light sensor |
| 06/13/1989 | US4839479 Article using shape-memory alloy to improve and/or control the speed of recovery |
| 06/08/1989 | DE3740051A1 Test element, mounted on the wheel of a motor vehicle, for monitoring the internal pressure of a tyre |
| 05/23/1989 | US4833281 Motion detector |
| 05/23/1989 | US4831879 Sensor for automatic release of occupant protective devices in the event of an accident |
| 05/18/1989 | WO1989004542A1 Centrifugally activated switch for a synchronous generating system |
| 05/16/1989 | CA1254058A1 Fluid pressure transducer |
| 05/09/1989 | US4827603 Method of making a blow molded float switch assembly |
| 05/03/1989 | EP0313784A2 Igniter-releasing device |
| 05/03/1989 | EP0248821B1 Detector of the inflation pressure of motor vehicle tyres |
| 05/03/1989 | CN2037102U Low voltage electric switch |
| 05/02/1989 | US4827095 Differential pressure switch assembly with high static pressure use characteristics |
| 05/02/1989 | US4827094 Dual-action pressure switch apparatus |
| 05/02/1989 | US4827093 Adjustable pressure-type switch |
| 05/02/1989 | US4827092 Flow monitor with non-rotatable mounting |
| 05/02/1989 | US4827091 Magnetically-damped, testable accelerometer |
| 05/02/1989 | CA1253544A1 Multimodal pressure switch |
| 04/26/1989 | EP0313470A1 Tie rod with a contact for controlling the flight of aircraft |
| 04/25/1989 | CA1253010A1 Humidity control with adjustment for variations in element sensitivity |
| 04/18/1989 | US4823224 Rapid pressure rise circuit |
| 04/18/1989 | US4821626 Pressostat for pressure sensitive activation |
| 04/11/1989 | US4820890 Three-function pressure switch |
| 04/11/1989 | US4820888 Tilt switch replacing mercury switches |
| 04/05/1989 | CN2035529U Switch operated by change of position |
| 04/05/1989 | CN2035249U First aid medicine box with alarming |
| 04/04/1989 | US4817950 Video game control unit and attitude sensor |
| 03/29/1989 | EP0309307A1 Inertial electrical switch |
| 03/29/1989 | EP0308547A2 Electromagnetic relay with light signalling device |
| 03/29/1989 | CN2035138U Microswitch |
| 03/28/1989 | US4816797 Control device, slide member therefor and methods of making the same |
| 03/28/1989 | US4816627 Transmitting electrical signal to operate a restraint system |
| 03/28/1989 | US4815320 Inertia sensor |
| 03/28/1989 | CA1251840A1 Pressure responsive assembly |
| 03/22/1989 | EP0066607B2 Pressure detector |
| 03/22/1989 | CN2034737U Submerged hydraulic pressure induction switch |
| 03/21/1989 | US4814583 Temperature controller for a waterbed |
| 03/21/1989 | US4814564 Electrical contact apparatus |
| 03/15/1989 | CN2034322U Electronic box sounding relay |
| 03/15/1989 | CN1031759A Fluid flow indicator |
| 03/08/1989 | EP0305940A1 Electric switch operated by change of position |
| 03/07/1989 | US4811157 Electromagnetic relay with light signaling device |
| 02/22/1989 | EP0304043A2 Optical switch array provided with a mask having openings of a predetermined pattern and shutters corresponding to the pattern |
| 02/21/1989 | US4805753 Bi-directional self-resetting force transmitting overload arm |
| 02/21/1989 | US4805460 Oil pressure transducer |
| 02/15/1989 | EP0303014A1 Switching device for an electric driven floor cleaning machine |
| 02/14/1989 | US4804808 Pressure sensing device for tires of motor vehicles |
| 02/09/1989 | WO1989001233A1 Stability protection device for electrical appliances |
| 02/08/1989 | EP0302129A1 Tilt safety device for electric appliances put up free in the working position |
| 02/01/1989 | EP0301432A2 Reversing switch assembly for an electric assist steering system |
| 01/31/1989 | US4800633 Method of making a water level control device |