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)
09/1992
09/02/1992CN2114888U All-closed band switch
08/1992
08/11/1992US5138373 Copier or printer component position floating magnetic actuator
08/05/1992EP0497191A1 Actuating means for a cooking device and control method
08/05/1992CN2112196U Low current automatic switch able starting electric power
07/1992
07/21/1992CA1305541C White touch pads for capacitive touch control panels
07/15/1992CN2110284U Magnetic electric switch
07/07/1992US5128641 Magnetic switches
06/1992
06/30/1992CA1304469C Magnetic sensing proximity detector
06/24/1992EP0447449A4 Means and method for measuring inductance
06/24/1992CN2108356U Current sensing switch
06/17/1992CN2107711U Safety power source control switch
06/10/1992EP0489199A1 Crash sensor for a vehicle
05/1992
05/06/1992EP0483560A1 Two-channel forked light barrier in Failsafe-design
05/05/1992US5110194 Controlled fiber-optic switch
04/1992
04/29/1992CN2103199U See-saw outer magnetic type waterproof explosion protection power switch
04/09/1992DE4031231A1 Measuring probe esp. for liq. level pick=up - supports vertical row of magnetically operated switches with assigned resistors forming potentiometer
04/09/1992DE4031230A1 Switch element for level indicator - has parallel switch and resistance within elongate plastics housing
04/08/1992EP0479078A2 Inductive proximity switch
04/01/1992EP0477839A2 Acceleration sensor with at least one magnetic switch device
04/01/1992CN2100658U Induction water level controller
03/1992
03/18/1992CN2099377U Magnetic proximity switch
03/18/1992CN2099376U Non-contact type magnetic memory proximity switch
03/11/1992CN2098731U Full-automatic magnetic temp.-regulating switch for electrical rice cooker
03/10/1992US5095295 Superconducting switching device
02/1992
02/26/1992EP0471690A1 Location marker
02/26/1992CN2097440U Position sensor
02/04/1992US5086284 Connector having a switching device
01/1992
01/30/1992DE4023792A1 Proximity switch with integral housing - uses sensor sunk into cup of plastics material
01/29/1992EP0468291A1 Switching device for installation in waterproof ambient, especially in bath-tubs or whirlpools etc.
01/29/1992CN2094797U Magnetic self-keeping switch
01/23/1992DE4112682A1 Filling level meter and monitor for incombustible liquid - includes immersed parts made from or coated with HDPE, polypropylene or U-PVC
01/22/1992CN2094113U Water-flame-proof key-operated mains contactor
01/22/1992CN2093680U Magnetic-control electric toy
01/08/1992EP0464529A2 Level measuring device
01/02/1992EP0463725A2 Display indicator and reed switch
01/02/1992EP0463429A2 Door ajar alarm for refrigeration unit
01/01/1992CN2092141U Separation-type magno-controlled switch
12/1991
12/26/1991WO1991020089A1 A switch assembly and activation mechanism
12/04/1991CN2090106U Seperation sliding type pull switch
11/1991
11/26/1991CA1292490C Waterproof switch assembly for electrical appliances
11/21/1991EP0457231A2 Fluid leak detecting probe
11/12/1991US5065125 C-, s- and t-switches operated by permanent magnets
11/05/1991US5063478 Electrical or electronic control key pad
11/05/1991US5063372 Door ajar alarm for refrigeration unit
11/05/1991US5063306 Proximity sensing device
10/1991
10/29/1991US5060977 Magnet-inclusive component suitable for use in occupant-protecting means for motor vehicle and fabrication process thereof
10/17/1991DE4011949A1 Magnetic immersion probe - has measurement path contg. contacts actuated by magnet on float enabling contact testing
10/16/1991EP0451974A2 C-, S- and T-switches operated by permanent magnets
10/16/1991CN2086936U Flame-proof magnetic switch
10/15/1991US5057807 Keyboard switch
10/15/1991CA1290790C Reed switch assembly
10/09/1991CN2086458U Magmetic induction switch
10/02/1991DE4009741A1 Gas bottle manometer for gas leak detection - has pressure detector and pressure threshold detector operating warning signal device
09/1991
09/25/1991EP0447449A1 Means and method for measuring inductance.
09/24/1991US5050325 Display indicator and reed switch
09/18/1991CN2085094U Position test switch with magnetic indication
09/02/1991CA2036752A1 Solenoid actuator having a magnetic flux sensor
08/1991
08/20/1991US5041812 Reservoir with a side mounted float
08/14/1991CN2082900U Two-wire system indicated type magnetic induction approach switch
07/1991
07/30/1991US5035512 Oil-level sensing apparatus having a time delay function
07/16/1991US5032812 Solenoid actuator having a magnetic flux sensor
07/16/1991US5031405 Hydraulic reservoir of master cyclinder
07/09/1991US5030803 Offset float switch
07/03/1991EP0435168A2 Differential coil type proximity switch
06/1991
06/27/1991DE3941981A1 Flowmeter for vertical measurement flows - has float permanently magnetic coaxial to cylindrical symmetry axis and magnetic field sensitive elements along tube exterior
06/26/1991EP0433377A1 Vehicle crush zone crash sensor
06/25/1991US5026954 Liquid level sensing switch assembly
06/25/1991US5025827 Structure of fluid level controller of piping type
06/18/1991US5025170 Underwater magnetic switch for electrical cable transmitting A.C. electrical current
06/12/1991EP0431837A2 Splice block for security system switch
06/06/1991DE3939939A1 Pulse generator - has magnetic material disc that rotates and is detected by Reed switch sensor
05/1991
05/28/1991US5019795 Splice block for security system switch
05/21/1991US5018049 Housing for electronic switchgear
05/21/1991US5016442 Master cylinder with fluid level and pressure failure detector
05/16/1991DE3937895A1 Level switching changing binary state - has two elements movable relative to each other in common housing
04/1991
04/30/1991CA1283723C Magnetic proximity switch
04/23/1991US5010529 Underwater transmitter apparatus
04/09/1991CA1282851C Intrusion detection switch housing
04/03/1991CN2074497U Permanent-magnet limit switch
04/02/1991US5004879 Switch housing with resilient retainers
03/1991
03/12/1991US4999599 Electrical circuit
03/12/1991CA1281352C Reed switch device
02/1991
02/26/1991US4995639 Vehicle crush zone crash sensor
02/06/1991EP0411228A1 Controlled fiber-optic switch
02/06/1991CN2070950U Automatic alarming switch for infusion
02/06/1991CN2070753U Double-control energy-saving switch for loom
02/05/1991US4990898 Surface-mount intrusion detection switch housing
01/1991
01/29/1991US4988965 Detecting the passage of a magnet
01/27/1991CA2004775A1 Master cylinder
01/15/1991US4984385 Powered closing assist mechanism for vehicle doors or lid members
01/08/1991US4983812 Control system for an electric cooker
01/01/1991US4981039 Liquid level gauge
12/1990
12/27/1990WO1990015709A1 Process and equipment for embedding the inside of an electric apparatus in resin, such as a proximity detector, the related electric apparatus and containers for said apparatus
12/26/1990CN1048121A Antimagnetic vacuum switch made by antimagnetic method
12/20/1990DE3919414A1 Liquid level control float switch - has ball with magnets to operate reed relays in centre tube
12/18/1990CA1278065C Inductance divider sensor
12/12/1990EP0383823A4 Transmitter with magnetic zero/span actuator
12/11/1990US4976146 Liquid level measuring apparatus
12/06/1990DE3917497A1 Level sensor with permanent magnet - pivotally mounted about vertical axis w.r.t. magnetically-operated switch
12/06/1990DE3917496A1 Level sensor with permanent magnet operating electrical switch - installed at lower end of vertical pipe sealed by non-magnetisable material against medium
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