Patents for H01H 51 - Electromagnetic relays (5,199)
01/1991
01/22/1991US4987512 Solid state circuit protector
01/22/1991US4987396 Electromagnetic switch, in particular for starting devices of internal-combustion engines
01/17/1991DE3922576A1 Electrical switch element esp. reed relay - having cast insulation contg. soft magnetic particles
01/09/1991CN2069167U Autolock contactor without energy consumption
01/08/1991US4983941 Electromagnetically operated switch
01/08/1991US4983940 Electromagnetic switch
12/1990
12/27/1990WO1990016077A1 Auxiliary switch for an electromagnetic switching device
12/19/1990CN2067862U Relay with bistable memory performance
12/19/1990CN2067861U Splicing ac contactor
12/18/1990US4978935 Electromagnetic relay
12/05/1990EP0400537A2 Polarized armature contact relay
12/04/1990US4975666 Polarized electromagnetic relay
12/04/1990US4975623 Electromagnetic relay for transmitting operating sounds thereof
12/04/1990US4975545 Sealed relay assembly
11/1990
11/22/1990EP0398627A1 Water cover arrangement for a solenoid apparatus
11/21/1990CN2066197U Double-way self-locking alternating current contactor
10/1990
10/31/1990CN2064938U Electricity-saving device for non-pressure operation of a.c. contactor coil
10/23/1990US4965542 Magnetic switch for coaxial transmission lines
10/18/1990DE3911906A1 Compact relay with monostable anchor element - moves in guide rail perpendicular to coil axis, and has contact and coil leads in separate compartments insulated from each other
10/17/1990EP0392302A2 Motor monitoring switch
10/17/1990EP0392200A1 Safety door latch for electrical appliances
10/17/1990CN2064100U Contactor of detachable contact system
10/17/1990CN2064099U Permanent-magnet energy-saving contactor
10/10/1990CN2063688U Self-lock contactor
10/09/1990CA1275138A1 Electromagnetic relay
10/04/1990DE4010136A1 Electromagnetic protection switch assembly - uses locating device between coil carrier and cover incorporating contact carrier
10/03/1990EP0390553A1 Core and contact assembly for a coaxial engine starter
10/03/1990EP0390372A2 Polarized electromagnetic relay
10/03/1990CN2063289U Energy-saving contactor without counter-magnetism winding
09/1990
09/25/1990US4959627 Electromagnet relay
09/20/1990WO1990010967A1 Solid state circuit protector
09/20/1990DE3908319A1 Electromagnetic contactor for machinery or air conditioning
09/11/1990US4956623 Electromagnetic relay
09/05/1990CN1045196A Energy-saving noise-free ac contactor
08/1990
08/29/1990CN2061332U No-voltage operating alternating-current contactor
08/21/1990US4951016 Polarized electromagnetic multi-contact relay
08/09/1990DE4003109A1 Three=phase inverter switch
08/08/1990EP0381542A1 Protected phase-reversal contactor using a multifunctional transmission system for the control of confirmation switches
08/07/1990US4947285 Reversing circuit for direction reversal in direct current drives
08/07/1990US4947146 Electromagnetic contactor
08/03/1990CA2007196A1 Protected converter invester with multifunctional transmission system to control confirmation switches
08/01/1990CN1044362A D.c. position detented contactor
07/1990
07/26/1990WO1990008419A1 Terminal box having built-in connection switching contactor for three-phase induction motor
07/26/1990DE3940242A1 Betaetigungssolenoid Actuating solenoid
07/25/1990CN2059764U Electricity economizer of ac contactor
07/10/1990US4940958 Polarized electromagnetic apparatus
07/04/1990CN2059021U Symmetry bistable relay
06/1990
06/28/1990DE3843646A1 Elektromagnetischer schalterantrieb Electromagnetic switch drive
06/27/1990EP0375442A2 Coaxial starter with a core and contact terminal assembly
06/27/1990EP0375378A1 Pinion shifting arrangement for a starter
06/19/1990CA1270512A1 Electromagnet having a pivoted polarized armature
06/13/1990EP0373109A1 Polarised printed-circuit board relay
06/12/1990US4933655 Mounting structure of a reed switch for an eddy-current indicator
06/12/1990US4933654 Polarized electromagnetic relay
06/06/1990CN1042796A Lock mechanism for limiting contact maker
05/1990
05/31/1990WO1990005989A1 Armature/actuator for a relay
05/30/1990CN2057778U Weak current-controlling remanence contactor
05/23/1990EP0369844A1 Locking mechanism for a current-limiting contactor
05/17/1990WO1990005374A1 Improvements in electromagnetic devices
05/10/1990DE3837666A1 Relay
05/09/1990CN2057029U Self-locking electricity-saving safety switch
05/02/1990CN1041848A Double-coil electromagnetic switch
05/01/1990US4922370 Automatically resetting circuit protector
05/01/1990US4922369 Circuit protector
05/01/1990US4922216 Electromagnetic switching device
04/1990
04/25/1990EP0365518A2 Magnetic circuit shaped essentially as a flat rectangle with an air gap
04/18/1990EP0363410A1 Improvements in and relating to electrical components
04/18/1990CN2056277U Mechanical locker ac contactor
04/12/1990DE3834283A1 Change-over relay for DC motors having anticlockwise and clockwise control
04/11/1990CN2055988U Contactor suitable for fitting with capacitor
04/04/1990EP0361638A2 Microwave C-switches and S-switches
04/04/1990EP0361442A2 Relay device for switching radio frequency signal
04/04/1990EP0361392A2 Polarized electromagnetic relay
03/1990
03/28/1990EP0360271A2 Electromagnetic polar relay
03/28/1990CN2055290U 节能接触器 Saving contacts
03/28/1990CN2055289U Pin-lift alternating-current contactor
03/28/1990CN1040886A Bistable magnetic actuator and circuit breaker
03/27/1990US4912438 Electromagnetic relay
03/21/1990CN1007299B Relay switch apparatus
03/07/1990CN2054205U Electromagnetic type electrical controller with under-voltage protection
03/07/1990CN2054204U Electric appliances with shock-resistant properties in drilling equipment
03/07/1990CN2054203U 双稳态电磁继电器 Bistable electromagnetic relays
02/1990
02/28/1990EP0355817A2 Electromagnetic relay
02/28/1990CN2053793U 节能接触器 Saving contacts
02/28/1990CN2053792U Automatically releasing residual magnetism type contactor
02/22/1990WO1990001788A1 A bistable magnetic actuator and a circuit breaker
02/14/1990EP0354803A1 A bistable magnetic actuator and a circuit breaker
02/14/1990CN2052949U Memory self-locking relay
02/14/1990CN2052948U Ac/dc common used consumption-free holding contactor
02/14/1990CN1039642A Electromagnetic switch for starter mechanisms of internal-combustion engines
02/13/1990US4901046 Manually actuated on-off switch with electromagnetic release
02/08/1990WO1990001211A1 An electromagnetic switch for internal combustion engine starters
02/06/1990CA1265564A1 Integrated power relay for electric starter motor
02/01/1990DE3925137A1 Betaetigungssolenoid Actuating solenoid
01/1990
01/31/1990EP0352884A2 Relay for wideband signals
01/31/1990CN2052148U Currentless ac/dc contactor of coil in motion
01/30/1990US4897625 Remotely controllable circuit breaker
01/25/1990DE3824801A1 Elektromagnetischer schalter fuer andrehvorrichtungen von brennkraftmaschinen Electromagnetic switch for starting devices of internal combustion engine-
01/24/1990EP0351547A2 Sealed relay assembly
01/24/1990EP0185769B1 Electromagnetic actuator
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