| 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) |
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| 12/15/1993 | EP0573471A1 Electromechanical connecting device. |
| 12/15/1993 | CN2149683Y Safety type low voltage power supply switch |
| 12/09/1993 | WO1993024948A1 Traffic accident detecting sensor for a passenger protection system in a vehicle |
| 12/02/1993 | DE4217305A1 Level detecting switch for use with liquid, granular or powder materials - has probe with electrode and dielectric body enclosed by earthed annular counter electrode |
| 11/25/1993 | WO1993020535A3 Joystick |
| 11/23/1993 | US5264733 Inductive proximity switch |
| 11/18/1993 | DE4315519A1 Liquid level measurement arrangement, e.g. for vehicle engine oil - has magnetic float, normally-off reed switch and NTC thermistor in series with warning lamp. |
| 11/18/1993 | DE4225026A1 Control switch for liquids or gases e.g. for sensing presence of flow - provides flow-operated switching piston with magnet and has housing contg. reed switch and second magnet for pulling first magnet against force of flow. |
| 11/16/1993 | US5262604 Float level switch for a nuclear power plant containment vessel |
| 11/10/1993 | EP0568973A2 Level switch |
| 11/10/1993 | CN1078329A 自动切换装置 Automatic switching device |
| 11/09/1993 | US5259115 Electric hair cutting apparatus |
| 11/03/1993 | EP0568343A1 A contact sensitive substrate |
| 10/26/1993 | US5257002 Temperature operated switch construction and method of making the same |
| 10/21/1993 | DE4212510A1 Electrical circuit for lighting esp. of refrigerator-freezer cabinet - exploits inductive coupling between permanent magnet and reed switch to connect power to lamp while door is open |
| 10/19/1993 | US5254965 Protective reed switch housing |
| 10/19/1993 | US5254815 Reservoir tank including float with reed switch unit |
| 10/14/1993 | WO1993020575A1 Temperature operated switch construction and method of making the same |
| 10/14/1993 | WO1993020535A2 Joystick |
| 10/14/1993 | CA2132715A1 Temperature operated switch construction and method of making the same |
| 10/12/1993 | US5252936 Reed relay and switch matrix device using the same |
| 10/07/1993 | DE4211357A1 Two point temp. regulator with reed contacts for switching - has coil bimetallic temp. sensing stage with strip end that locates between reed contact capsule and permanent magnet |
| 10/07/1993 | DE4210869A1 Hand operated safety current switch - has rocker arm with operating lever and magnetic switch member with movable reed contact plates |
| 10/06/1993 | CN2143359Y Magnet status controller with positive feedback |
| 09/29/1993 | EP0562740A1 Seat belt warning device |
| 09/29/1993 | CN2143001Y External-regulating gas relay |
| 09/29/1993 | CN2143000Y Pressure-release gas relay |
| 09/28/1993 | US5248861 Acceleration sensor |
| 09/28/1993 | US5247833 Water level measuring apparatus |
| 09/25/1993 | CA2091848A1 Seat belt warning device |
| 09/22/1993 | CN2142603Y Non-contact mobile shut-off switch |
| 09/21/1993 | US5247275 Temperature operated switch construction, terminal block therefor and methods of making the same |
| 09/21/1993 | US5247139 Two-channel forked light barrier detecting vertical position |
| 09/08/1993 | CN2141930Y Rare-earth permanent-magnet inductor |
| 08/26/1993 | DE4226549C1 Position detection device using magnetic proximity switches - has housing wall with adjacent windows receiving respective switches fitted to rear circuit board |
| 08/25/1993 | CN2141122Y Flame-proof switch |
| 08/24/1993 | US5239202 Failsafe interlock switch |
| 08/24/1993 | US5239130 Electronic proximity switch |
| 08/17/1993 | CA1321417C Apparatus and method for protecting the contacts of an electrical switch from current surges |
| 08/03/1993 | US5233323 Defeat resistant interlock/monitoring system |
| 08/03/1993 | US5233322 Magnetic switches |
| 07/27/1993 | US5231368 Temperature operated switch construction, terminal block therefor and methods of making the same |
| 07/14/1993 | CN2138340Y Mineral explosion-proof magnet sensing switch |
| 07/13/1993 | US5226257 Garage door security apparatus |
| 06/23/1993 | CN2137022Y Bi-pass breakback contact switch |
| 06/22/1993 | CA1319381C Flow switch |
| 06/15/1993 | US5218744 Magnet-inclusive component suitable for use in occupant-protecting means for motor vehicle |
| 06/08/1993 | US5218366 Emergency transmitter buoy for use on marine vessels |
| 05/26/1993 | CN2134711Y Contactless overtravel-limit switch |
| 05/25/1993 | US5213880 Radiaition transparent conductive layer of indium tin oxide and a curable phosphazine |
| 05/12/1993 | CN2133046Y Permanent-magnet proximity and limit switch |
| 05/11/1993 | US5209669 Plug-in proximity switch |
| 05/05/1993 | CN2132277Y Magnetic control type water-proof explosion-proof anticorrosion ac/dc switch |
| 05/05/1993 | CN2132276Y Safety electronic switch |
| 04/29/1993 | WO1993008580A1 Shaft position indicator for a rotary or linear switch mechanism |
| 04/28/1993 | EP0539351A1 Device for indicating that a current passage occurred in the conductors of lightning protection equipment |
| 04/28/1993 | EP0538502A1 Control device with a safe reset function |
| 04/28/1993 | CN2131198Y Transformer protector |
| 04/15/1993 | WO1993007633A1 Joystick |
| 04/06/1993 | US5200732 Temperature operated switch construction, terminal block therefor and methods of making the same |
| 04/06/1993 | US5200726 Electric switch assembly and related method of use |
| 03/18/1993 | DE4230182A1 Manually operated tap for low-pressure water outlet - has reed switch for control of pump operated by manual movement of magnet outside water pipe |
| 03/17/1993 | CN2128414Y Electromagnetic float level regulator |
| 03/17/1993 | CN2128413Y 磁力按钮开关 Magnetic button switch |
| 03/16/1993 | US5194842 Thermostat device |
| 03/10/1993 | EP0342213B1 Control system for an electric cooker |
| 03/10/1993 | CN2128019Y Field distortion spark switch for external knapper |
| 03/09/1993 | US5191999 Liquid actuated switch device |
| 02/25/1993 | DE4140590C1 Dual reed relay switching device, e.g. for electronic tachometer - has permanent magnet screened by guide elements and cylinder, located in central bore, and pistons to move magnet to select single relay |
| 01/28/1993 | DE4121410C1 Vehicle change-speed gear position recognising appts. - has hole mask which interrupts magnetic flux from permanent magnets to reed switches fitted directly to gears and activates position indicating circuit |
| 01/26/1993 | US5182539 Temperature operated switch construction, terminal block therefor and methods of making the same |
| 01/21/1993 | WO1993001606A1 Fluid flow sensing switch |
| 01/20/1993 | EP0523645A2 Electrical switch |
| 01/07/1993 | DE4122239A1 Electrical switch for holding grip for handicapped persons - is formed as adjustable split reed system with contacts encapsulated in grip or behind it and magnets in applied operating component |
| 12/22/1992 | US5173579 Differential pressure switch including a vertical diaphragm, a reed switch activated by a first magnet and additional magnets for positioning the diaphragm and the first magnet |
| 12/16/1992 | EP0518307A2 Sensor arrangement for level detection of free-flowing media as well as method for its fabrication |
| 12/15/1992 | US5172089 Pool pump fail safe switch |
| 12/09/1992 | CN2124508U Flame-proof switch |
| 12/02/1992 | CN2123816U Contactless stroke switch |
| 11/25/1992 | CN2123118U Water-level detector of water level controller |
| 11/24/1992 | US5166657 Temperature operated switch construction and method of making the same |
| 11/05/1992 | DE4113665A1 Magnetically activated proximity switch for security alarm system - has reed switching element between reed contact and short circuit loop to suppress interference fields |
| 11/04/1992 | EP0511880A2 Pressure devices |
| 11/03/1992 | CA2014585C C-, s- and t-switches operated by permanent magnets |
| 11/02/1992 | CA2067638A1 Pressure devices |
| 10/29/1992 | WO1992018998A1 Temperature operated switch construction, terminal block therefor and methods of making the same |
| 10/27/1992 | US5159305 Magnet responsive variable differential switching apparatus |
| 10/27/1992 | CA1309285C Fiber-optic reed switch |
| 10/22/1992 | DE4112553A1 Level indicator for underground pit mining - contains resistive chain with reed switches in slide tube for float moving with level of liq. in tank, level switch on tank stimulating resistive chain and accumulator in safe housing |
| 10/21/1992 | CN1018763B Fluid flow indicator |
| 10/14/1992 | CN2119031U Magnetic contact switch |
| 10/13/1992 | US5155460 Switch housing with magnetic roller plunger |
| 10/13/1992 | US5155311 Float switch assembly for submersible pump |
| 10/13/1992 | US5154079 Remote indicator attachment kit |
| 09/29/1992 | US5150614 Liquid level sensing device |
| 09/17/1992 | WO1992016002A1 Electromechanical connecting device |
| 09/17/1992 | DE4107816A1 Movement and position detector - determines forces on sphere from deformation of conducting paths on system carrier as sphere rolls over them and from effect of sphere short circuiting paths which are at different potentials |
| 09/16/1992 | EP0503340A1 Magnetic field-dependent, inductive proximity switch |
| 09/16/1992 | CN2116273U Rolling-type indicating liquid level gauge |
| 09/15/1992 | US5148142 Temperature operated switch construction, terminal block therefor and methods of making the same |