Patents
Patents for H01H 9 - Details of switching devices, not covered by groups (32,796)
10/1989
10/17/1989US4874321 Adapter
10/12/1989DE3907655A1 Transducer
10/11/1989EP0336051A2 Circuit arrangement with an electro-mechanic programmed switching device and electronic evaluation circuit for apparatus
10/11/1989CN2045892U Explosion-proof vacuum magnetic force starter
10/11/1989CN2045889U Combined switch and alternative control system
10/11/1989CN2045888U Push pull switch cabinet interlocking unit
10/10/1989US4873448 Input circuit having a photo-coupler with bi-directional indicator
10/10/1989US4873403 On-off switch system for a pair of conductors
10/10/1989US4873402 Push-button switch with plunger and switching mechanism
10/10/1989CA1262268A1 Infrared signaling system for detecting a predetermined state in a high voltage device
10/05/1989DE3810327A1 Electrical switching device
10/04/1989EP0335824A1 Current limiting switching device with electro-dynamically openable contact pieces
10/04/1989EP0335823A1 Combination of switching apparatuses comprising a low-tension power circuit breaker and a current-limiting switching device
10/04/1989EP0335700A2 Combined locking mechanism and switch
10/04/1989EP0335002A2 Automatic transfer switch
10/03/1989US4871890 Easily assembleable push-button switch
10/03/1989US4871889 Arcing contact assembly for a circuit breaker
09/1989
09/26/1989US4870531 Circuit breaker with removable display and keypad
09/26/1989CA1261958A1 Ground fault receptacle with compact component arrangement
09/26/1989CA1261906A1 Remote control transmitter
09/21/1989WO1989008924A1 Snap-action spring drive for load-reversing switches of multiple contact switches
09/20/1989EP0333179A2 Improved trigger switch
09/20/1989EP0332855A2 Improved hybrid relay
09/20/1989CN2044761U Pullswitch with indication
09/19/1989US4868382 Fiber-optic material sensing switch
09/19/1989US4868356 Easily serviced fluid pressure operated switch
09/19/1989US4868354 Slide switch with light guide
09/13/1989CN2044370U Identified pulling switch
09/13/1989CN2044368U Adjustable feed-back, message-leaving button switch
09/13/1989CN1035582A Waterproof switch assembly for electrical appliances
09/12/1989US4866408 Multiphase motor protector apparatus
09/12/1989US4866403 Stationary contact for low-voltage circuit breakers
09/12/1989US4866228 Key switch with multiple contact points
09/12/1989US4866227 Sealed contact device
09/12/1989US4866226 Multi-phase circuit breaker employing arc extinguishing apparatus
09/12/1989US4866225 Insulated light weight metallic crossbar in polyphase circuit breaker assemblies for inhibiting arcing
09/12/1989US4865556 Electrical switch device with non-metallic mounting straps and automatic grounding
09/08/1989WO1989008345A1 Power-operated device with a cooling facility
09/06/1989EP0331386A1 Control apparatus for switching a battery pack
09/06/1989EP0331383A2 Electrical supply control apparatus
09/06/1989EP0330956A1 Control gear mounting
09/06/1989CN1035389A Protected electric switching apparatus and device for fixing same
09/06/1989CN1035388A Seated contact arrangement in insulating material wall for step selector of step transformer
09/05/1989US4864457 Method and device for controlling an electromagnet whose energization, by means of an ac current, causes engagement of two parts
09/05/1989US4864157 Reduced arcing contact switching circuit
09/05/1989US4864083 Reversing switch
08/1989
08/30/1989EP0330621A2 Current-limiting device
08/30/1989EP0329920A1 Push button switch
08/30/1989EP0329843A1 Casing for an electrical apparatus
08/30/1989CN2043791U Locking device for h.v. live displaying
08/30/1989CN2043787U Micro watt-consumption contactor
08/30/1989CN2043785U Self-attraction push-button safety device
08/29/1989US4862125 Electrical switching device with cover interlock
08/29/1989US4862091 Circuit arrangement for testing the connecting lines of a switch or sensor
08/29/1989US4861950 Multiple switch device having waterproof structure
08/29/1989US4861948 Interlock switch with low energy operating mechanism
08/23/1989CN1035020A Intergral soundless power economizer
08/22/1989US4860162 Molded case and cover arrangement for current limiting circuit interrupters
08/22/1989US4859819 Staged opening switch
08/16/1989EP0328438A2 Apparatus and method for protecting the contacts of an electrical switch from current surges
08/16/1989EP0327708A2 Device for releasing quick couplings securing modular apparata to supporting profiled elements
08/16/1989CN1034834A Judge circuit for digital circuit cutout
08/16/1989CN1034833A Frequency doubling circuit and frequency square circuit for digital circuit cutout
08/15/1989US4857815 Switch for energizing an electric motor of a wiper system
08/15/1989US4857681 Dead man-type electrical control device for power tools
08/15/1989US4856658 Remote control unit holder assembly
08/09/1989EP0327403A2 Condition monitoring system
08/09/1989EP0327385A1 A mounting assembly for electrical device
08/09/1989EP0326808A1 Levelling plate for the parallel alignment of front panel switches
08/09/1989CN2042626U Three-purpose switch
08/09/1989CN2042625U Fault-operation protective latching device for flexible transmitting machinery
08/09/1989CN2042624U Automatic fault-operating protective blocking device for transformer substation
08/09/1989CN2042623U Adjustable switch for lighting
08/09/1989CN1034633A Rotary switch with curved surface guiding means for transferring arc-root
08/08/1989US4855746 Multiple device remote control transmitter
08/08/1989US4855612 Switching current and a relay device employed therein
08/08/1989US4855611 Cable adapter with switch
08/08/1989US4854885 Electrical outlet receptacle with non-metallic mounting strap and automatic grounding
08/03/1989DE3802647A1 Device for indicating the switching condition of an overload circuit breaker
08/03/1989DE3802588A1 Housing for an electromagnetic relay
08/03/1989DE3546625C2 Electrical rotary switch having illumination
08/02/1989EP0325767A2 Low-tension power circuit breaker with interchangeable contacts
08/02/1989EP0325745A2 Device for indication of the operating position of multiposition-load-break switches
08/02/1989CN2042242U Reversible ac contactor
08/02/1989CN2042234U Permanent-magnet type explosion proof and waterproof push button
08/02/1989CN2042233U Multifunctional mulfunction-preventing device for switch board
08/01/1989US4853822 Circuit breaker
08/01/1989US4852746 Orientation and storage apparatus for remote control unit
08/01/1989CA1258085A1 Lockable switch means for electric cord
07/1989
07/26/1989EP0325139A2 Contact arrangement placed in an insulated wall for tap changers of tap transformers
07/26/1989EP0325138A1 Method for attaching a contact part fixed in an insulator wall
07/25/1989US4851804 Thermo-activating breaker
07/25/1989US4851624 Control assembly having panel illumination means
07/25/1989US4851621 Operating handle for an enclosed electric switch
07/25/1989CA1257891A1 High speed current limiting circuit interrupter
07/19/1989EP0324182A2 Control or indication device with a protective cover for the terminals
07/18/1989US4849848 Circuit breaker
07/18/1989US4849591 Protection cutting apparatus provided with an arc breaking screen
07/18/1989US4849590 Electric switch with counteracting electro-electro-dynamic forces
07/18/1989US4849589 Contact assembly for a circuit breaker