Patents
Patents for H01H 36 - Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding (3,817)
01/1989
01/10/1989US4796472 Level detector with multiple magnetically activated switches
12/1988
12/29/1988DE3828964A1 Bistable magnetic contact switch
12/20/1988US4792879 Mounting structure for electric and electronic circuit elements
12/13/1988US4791254 Flow switch
12/07/1988CN88200986U Air door sensor
12/07/1988CN88200165U Intellect electrical switch
12/07/1988CN87205314U Permanent-magnet explosion-proof and waterproof contact switch
11/1988
11/30/1988CN88202383U Floating switch
11/30/1988CN88201949U Permanent-magnet explosion-proof button switch
11/29/1988US4788517 Sealed proximity switch assembly
11/24/1988DE3816049A1 Electric actuating switch for a medical endoscope
11/17/1988EP0291231A2 Magnetic proximity switch
11/09/1988EP0289956A2 Sealing structure for an electronic component
11/09/1988CN88212726U 永磁开关 Permanent magnet switch
11/09/1988CN87209769U Permanent-magnetic induction switch
11/08/1988US4783609 Rotation detecting apparatus for use with compressor
10/1988
10/26/1988CN87215655U 磁性感应开关 Magnetic sensor switch
10/26/1988CN87210935U Radio remote controller for household appliances
09/1988
09/28/1988EP0283781A1 Switching device
09/28/1988CN88203717U Multiple-way switch with conslant low resistance
08/1988
08/25/1988DE3704470A1 Reed contact arrangement
08/10/1988CN87214797U Contactless memory overrunning switch
08/09/1988US4763114 Fluid flow indicator
08/04/1988DE3702113A1 Filling level switch and process for adjusting it
08/03/1988CN87206986U Permanent-magnet type explosion-proof and water-proof switch
07/1988
07/27/1988EP0275913A2 Electric switching device
07/19/1988US4758819 Keysensor
07/06/1988EP0273358A2 Differential pressure limit value indicator
07/05/1988US4755636 Piston position detecting device for fluid pressure cylinder
06/1988
06/23/1988DE3643949A1 Liquid container
06/21/1988US4752657 Proximity switch mounting apparatus
06/15/1988CN87209224U Step-by-step combined switch
06/14/1988US4751485 Waterproof switch assembly for electrical appliances
05/1988
05/31/1988US4748300 Liquid level indicator switch
05/31/1988US4748299 Level sensing system with latching device
05/19/1988DE3637974A1 Electric switch
05/17/1988US4745383 Magnetic proximity switch
05/17/1988CA1236895A1 Capacitance membrane switch
05/10/1988US4743895 Capacitive switches
05/10/1988US4743717 Apparatus for stopping electrically driven watering system
05/03/1988US4742195 High temperature hermetic switch
04/1988
04/19/1988US4739260 Proximity sensor with remotely coupled output
04/12/1988US4737751 Robbery alarm switch
04/12/1988CA1235171A1 Reed switch with a housing and a pulse generator
04/06/1988EP0262909A2 Touch controlled switching circuit
03/1988
03/24/1988DE3631108A1 Intrinsically safe proximity switch for winning machines (coal-getting machines, degraders) in underground mining (deep mining)
03/16/1988EP0260091A2 Controller for electric devices directed to use in bath
03/15/1988US4731548 Touch control switch circuit
02/1988
02/24/1988EP0256208A2 Proximity switch assembly
02/24/1988EP0256004A1 Proximity sensing device
02/17/1988CN87200337U Thin passive-magnetic induction adjacent switch
02/09/1988US4723503 Robotic control apparatus
01/1988
01/28/1988DE3625057A1 Foot switch for the actuation of lifting platforms
01/07/1988DE3622516A1 Device for tripping a reed switch, especially for appliances on motor vehicles for monitoring liquid levels
12/1987
12/29/1987US4716400 Key sensing system
12/02/1987CN87203049U Safety magnetic controlling switch
11/1987
11/07/1987CN86206167U Multipurpose explosion-proof water-proof power switch with external magnet
11/03/1987US4704524 Attachment for electronic switch
10/1987
10/13/1987US4700163 Removable magnetic switch security system for buildings
10/13/1987US4700082 Circuit breaker
09/1987
09/23/1987CN86210141U Twopurpose inductive switch for power source
09/16/1987EP0237171A2 Inductance divider sensor
09/09/1987CN86205198U Multipositioned electric and hand control switch
09/01/1987US4691185 Solid state magnetic microswitch
08/1987
08/25/1987CA1225853A1 Magnetically operated door chime
08/20/1987DE3545149A1 Magnetic switch
08/19/1987EP0232280A1 Magnetically actuated illuminating warning device for circuit breakers
08/13/1987WO1987004851A1 Proximity sensing device
08/12/1987EP0232172A2 Switching arrangement with thermal and magnetic functions
07/1987
07/14/1987US4680436 Proximity switch in mounting arrangement
07/09/1987DE3605067C1 Non-contact-making magnetic switch (magnet-operated switch)
07/07/1987CA1223939A1 Three plate variable capacitance switch
05/1987
05/27/1987DE3541564A1 Thermostatic valve with an open and shut action
05/27/1987CN85108516A Safetyelectric switch for waterproof, explosion-proof and corrosion-proof
05/21/1987DE3538841A1 Safety contact device operated by a magnetic field
05/12/1987US4665324 Touch control apparatus for electric appliances
05/12/1987US4664364 Proximity switch assembly
05/05/1987US4663540 Magnetic fuel tank safety switch
04/1987
04/22/1987CN85204722U Long distance contactless magnetostriction switch
04/21/1987US4658646 Magnetic actuator for mechanical indicator of change of state in a pressurizeable system
03/1987
03/31/1987US4654471 Electronic switch
03/11/1987EP0213437A1 Lock switch for locks and/or lock bolts
03/03/1987US4647740 Float switch assembly for refrigeration system
02/1987
02/26/1987WO1987001231A1 Magnetically actuated illuminating warning device for circuit breakers
02/25/1987CN86203064U Three-proofing induction switch
02/24/1987US4646042 Speed and distance sensor
02/24/1987US4645887 Pressure differential bypass sensor switch
02/17/1987US4644332 Dry lube level sensor
02/10/1987US4642593 Impulse mercury relay with magnetic interlock switch
01/1987
01/24/1987CN86102008A Magnetic cut-out switch
01/20/1987US4638278 Magnetic detector apparatus
01/20/1987US4638276 Reed switch with a housing and a pulse generator
01/07/1987EP0207270A2 Contactless working proximity switching device
12/1986
12/30/1986US4632352 Mount for a proximity sensor
12/23/1986US4631375 Delayed action liquid level sensing apparatus
12/16/1986US4629131 Magnetic safety interlock for a food processor utilizing vertically oriented, quadrant coded magnets
12/10/1986EP0204050A1 Electric or electronic control keyboards
12/10/1986EP0203914A1 Touch controlled display device.
12/09/1986US4628162 Fluid level indicator for a reservoir
12/09/1986US4627277 Magnet selector or switch
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