Patents
Sitemap › H01 - Basic electric elements › H01H - Electric switches; Relays; Selectors; Emergency protective devices › H01H 51 - Electromagnetic relays
Patents for H01H 51 - Electromagnetic relays (5,199)
05/1979
05/22/1979US4156218 Retaining means for securing a biasing magnet in a reed relay switching assembly
05/22/1979CA1055085A1 Latch relay with electrical reset
05/16/1979EP0001827A1 Multiple relay
05/16/1979EP0001802A1 Monostable elctromagnetic rotary armature relay
05/01/1979CA1053792A1 Automatic transfer switch
04/1979
04/17/1979US4150348 Magnetic latching coaxial switch
04/17/1979CA1052839A1 Electromagnetic relay comprising two control coils
04/10/1979US4149131 Electromagnetic relay
04/10/1979US4149130 Miniature mercury contact reed switch construction
03/1979
03/27/1979US4145805 Method of making a reed relay with molded bobbin
02/1979
02/27/1979US4142167 Solenoid operated, oppositely rotated actuator
02/27/1979US4142166 Armature assembly for an electromagnetic relay
02/13/1979US4139830 Electromagnetic switching apparatus including improved means for mechanically latching a contact bridge carrier
02/13/1979CA1048577A1 Electromagnetic reed switch
01/1979
01/23/1979US4136321 Reed relay assembly and the method of making same
01/16/1979CA1046563A1 Sealed switch with reed contacts having tapered tips
01/09/1979US4134090 Electromagnetic actuator for a relay
01/09/1979US4134088 Miniature magnetic mercury-wetted relay construction
12/1978
12/12/1978CA1044286A1 Terminal structure for electromagnetic contactor
12/05/1978US4128823 Magnetic electrodes
11/1978
11/28/1978CA1043398A1 Bistable switch comprising strip contacts
11/07/1978CA1042039A1 Reed relay
10/1978
10/24/1978US4122420 Permissive-make electromagnetic switch
10/03/1978CA1039778A1 Sealed electromagnetic relay and method of its assembly
09/1978
09/12/1978CA1038426A1 Sealed electromagnetic relay of dual-in-line type
09/05/1978US4112399 Miniature relay
08/1978
08/29/1978CA1037531A1 Magnetically actuated switch for precise rapid cycle operation
08/22/1978CA1037086A1 contactor
08/08/1978US4105982 Vacuum relay with reduced sensitivity to manufacturing tolerances and optional latching feature
08/01/1978US4104591 Method of adjusting a permanent magnet by using a hypothetical demagnetization curve lower than the actual value
07/1978
07/18/1978US4101855 Miniature relay
07/11/1978US4100517 Electrical contactors
06/1978
06/13/1978US4095124 Transformer/switch device
05/1978
05/23/1978US4091346 Reed relay
05/16/1978US4090160 Electromagnetic relay
05/02/1978US4087771 Electrical switch
04/1978
04/11/1978US4084142 Reed relay having low differential thermal emf
04/04/1978US4083025 Windings for magnetic latching reed relay
03/1978
03/07/1978US4078219 Overcurrent latch for magnetic contactor
02/1978
02/21/1978US4075586 Electromagnetic relay
02/21/1978US4075585 Electromagnetic relay and the manufacture thereof
12/1977
12/20/1977US4064471 Electromagnetic relay
12/20/1977US4064451 Hysteresis compensated reed switch assembly for a position indicating system
12/13/1977US4063205 Printed wiring card mountable reed relay
12/06/1977US4061994 Miniature relay with bearing supports associated with the housing
11/1977
11/29/1977US4060782 Integrated type switching device
11/15/1977US4058783 Rapid action relay
09/1977
09/20/1977US4050043 Electromagnetic system
09/06/1977US4047237 Means for controlling electromagnetic device having hermetically sealed contacts
09/06/1977US4047135 Cylindrical, linear, stopless mercury switch and relay
08/1977
08/23/1977US4044322 Electromagnetic solenoid relay assembly and electrical connection means therefor
08/23/1977US4044320 Coaxial 1 of N relay transfer switch having reed contacts
08/23/1977US4044319 Coaxial 2-of-n relay transfer switch having reed contacts
08/02/1977US4039985 Magnetic reed switch
08/02/1977US4039984 Pressurized relay assembly
07/1977
07/26/1977US4038620 Magnetic reed switch
05/1977
05/31/1977US4027277 Vacuum relay with reduced sensitivity to manufacturing tolerances and optional latching feature
05/03/1977US4021678 Automatic transfer switch
04/1977
04/26/1977US4020435 Hinged armature relay
04/26/1977US4020434 Polarized electromagnetic relay and method of manufacturing the same
04/19/1977US4019165 Miniature relay device
03/1977
03/29/1977US4015225 Encapsulated electromechanical relay
03/08/1977US4011533 Magnetically actuated switch for precise rapid cycle operation
03/01/1977US4010433 Electromagnetic relay
02/1977
02/01/1977US4006440 Terminal structure for electromagnetic contactor
01/1977
01/11/1977US4003010 Latch relay
12/1976
12/21/1976US3999156 Bistable magnetic switch comprising strip contacts
12/07/1976US3996541 Electromagnetic switch
11/1976
11/23/1976US3993971 Electromagnetic relay
11/23/1976US3993970 Coaxial cable switch
10/1976
10/19/1976US3987383 Electromagnetic switching device
10/05/1976US3984795 Magnetic latch construction
09/1976
09/28/1976US3983519 Electromagnet
09/14/1976US3980978 Electromagnetic relay
08/1976
08/31/1976US3978440 Push to start dual relay
08/31/1976US3978439 Relay construction
08/24/1976US3976962 Dual threshold magnetic proximity switch
08/24/1976US3976960 Mercury switch
07/1976
07/06/1976US3968470 Magnetic motor
06/1976
06/15/1976US3964006 Electrical apparatus
06/08/1976US3962659 Electromagnetic switch
06/01/1976US3961148 Dry-reed contact construction
05/1976
05/25/1976US3959759 Contact drive for electro-magnetic relays
05/25/1976US3959758 Magnetically actuated switching device
05/18/1976US3958200 Blade construction for relay
05/18/1976US3958199 High voltage relay package
05/11/1976US3956722 Eddy current retarder control device
04/1976
04/20/1976US3952271 Electromagnetic device using hermetically sealed contacts
04/13/1976US3950718 Electromagnetic device
04/06/1976US3949335 Reed switch construction
04/06/1976US3949334 Compact reed switch relay
04/06/1976US3949332 Rapid action relay
03/1976
03/30/1976US3947792 Electromagnetic relay
03/23/1976US3946347 Electromagnetic relay structure
03/16/1976US3944955 Solenoid switches
03/09/1976US3943475 Latch relay with electrical reset
03/09/1976US3943474 Reed and reed switch therefor
02/1976
02/24/1976US3940722 Reed switch relay
01/1976
01/20/1976US3934214 Sealed contact having tapered reed tips
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