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)
12/1991
12/12/1991WO1991019313A1 Solenoids
12/10/1991US5072328 Power control relay for electrical outlets which maintains position in absence of solenoid energization
12/10/1991CA1293012C Electromagnetic relay with pivotable armature
12/10/1991CA1293010C Polarized electromagnet
11/1991
11/27/1991EP0458302A2 Remotely controlled relay
11/27/1991EP0458301A2 Remotely-controlled relay
11/27/1991EP0458294A2 Remotely-controlled relay
11/26/1991CA1292491C Electromagnetic contactor with control circuit for providing acceleration, coast and grab functions
11/19/1991CA1292263C Electromagnetic relay
11/12/1991US5065039 Coaxial starter with a core and contact terminal assembly
11/12/1991US5065038 Coaxial engine starter
11/06/1991EP0455534A1 Phase-reversal contactor with locking device
11/05/1991US5062668 Safety lock for the doors of electrical applicances
10/1991
10/30/1991EP0454164A2 Electromagnetic switch apparatus and starter
10/30/1991EP0453774A2 Solenoid actuator
10/30/1991CN2087813U Pulse contactor
10/30/1991CN2087812U Magnetic latching type energy-saving ac contactor
10/29/1991CA1291506C Electromagnetic relay
10/23/1991EP0452714A1 Interlocking device for electromagnetic switching devices
10/22/1991US5059935 Solenoid coil apparatus
10/22/1991US5059930 Electromagnetic contactor and fabrication method therefor
10/08/1991CA1290375C Device for rendering contactors electrically and mechanically inoperative
10/01/1991US5053756 Electromagnetic relay with return spring
09/1991
09/25/1991CN1014103B Convenient multi-functional contactor
09/17/1991US5049845 Welding free relay contact device
09/17/1991US5049844 Enclosed electromagnetic relay
09/03/1991US5045764 Motor monitor switching system
08/1991
08/13/1991US5039967 Magnetic switch
08/13/1991US5038626 Pinion shifting arrangement for a starter
08/07/1991CN2082461U Economizer device of mechanism self-lock type for the use of electromagnet
08/07/1991CN2082460U Lever type holding mechanism for the use of contactor
08/06/1991US5038123 Flat electromagnetic relay
07/1991
07/31/1991CN2082022U Electromagnetic relay
07/23/1991US5034714 Universal relay
07/17/1991EP0437209A2 Electromagnetic relay
07/17/1991EP0437003A2 Actuator with a built-in reed switch
07/11/1991WO1991010242A2 Magnetic drive with permanent-magnet solenoid armature
07/10/1991EP0436448A1 Electromagnetic relay polarised by a permanent magnet
07/03/1991CN2080230U Low power consumption electronic remembering contactor
07/03/1991CN2080229U Power saving silencer of ac contactor
06/1991
06/27/1991DE3942542A1 Bistabiler magnetantrieb mit permanentmagnetischem hubanker Bistable magnetic drive with permanent magnetic lifting armature
06/26/1991EP0434463A2 High voltage relay
06/26/1991EP0433633A2 Electromagnetic relay with a return spring
06/26/1991EP0433550A1 Electric switch device
06/26/1991CN2079800U Ac and dc contactor with dead current during runing
06/25/1991US5026305 Connector for reed switch or similar electrical component
06/19/1991EP0432822A2 Electromagnetic relay
06/19/1991EP0432299A1 AC contactor
06/18/1991US5025237 Relay device for switching radio frequency signal
06/15/1991CA2025706A1 Flat electromagnetic relay
06/13/1991DE4019236A1 Rolling electrical contact preventing cold welding
06/12/1991EP0431837A2 Splice block for security system switch
06/11/1991US5023581 Electromagnetic switch
06/06/1991DE3940425A1 Remote control with position indicator for manual switchgear - employs rotary switch whose operation modifies visual aspect in window in conjunction with movement of switchgear contacts
06/05/1991CN2078490U Starting-noise-free energy-saving contactor
06/04/1991US5021760 Solenoid switch contact and mounting assembly
05/1991
05/29/1991CN2078044U Automatic energy saving contactor
05/28/1991US5019795 Splice block for security system switch
05/22/1991EP0428138A2 Direct current switching apparatus
05/22/1991CN2077587U Energy-saving magnetic switch
05/22/1991CN2077586U Latch-in relay
05/22/1991CN2077585U Holding contactor without power and noise
05/14/1991US5015980 Solenoid switch apparatus
05/14/1991US5015979 Electromagnetic relay
05/14/1991US5015978 Electromagnetic relay
05/14/1991US5015899 Electromagnetic switch device with open-ended plunger
05/08/1991EP0425780A2 Miniaturized power relay for printed circuits
05/08/1991CN2076709U Mechanical lock catch contactor of iron core direct acting type
05/08/1991CN1051267A D. c. controlled invertible switch
04/1991
04/30/1991US5012214 Lock mechanism for a limiting contact maker
04/30/1991CA1283680C Microwave c-switches and s-switches
04/24/1991EP0423834A2 Electromagnetic relay
04/24/1991EP0280680B1 Electromagnetic switch, in particular for starting devices of internal combustion engines
04/18/1991WO1991005391A1 Control and protection devices by means of the quantified energetic pulse technique
04/17/1991CN2075383U Self-lock type contactor
04/16/1991US5008641 Polarized armature contact relay
04/03/1991CN2074499U Automatic power-saving relay contactor
04/02/1991US5004874 Direct current switching apparatus
03/1991
03/27/1991CN2074053U Electricity-saving a.c. contactor
03/27/1991CN2074052U Permanent magnet type contactor
03/26/1991US5003275 Non-latching relay switch assembly
03/26/1991US5003206 Integral solenoid and starter motor
03/20/1991EP0314683A4 Circuit protector
03/13/1991CN2073162U Energy-saving a.c contactor
03/13/1991CN1049936A Latching relay switch assembly
03/13/1991CN1049935A Non-latching relay switch assembly
03/12/1991US4999598 Three-position actuating mechanism for transfer switch
03/12/1991CA1281352C Reed switch device
03/06/1991EP0415532A2 Non-latching relay switch assembly
03/06/1991EP0415531A2 Latching relay switch assembly
03/06/1991CN2072725U 节能接触器 Saving contacts
03/05/1991US4998082 Latching relay switch assembly
02/1991
02/27/1991CN2072273U Double-action vacuum contactor
02/19/1991US4993787 Electromagnetic relay
02/13/1991CN2071385U Curved plate rolling wheel type power saving contactor
02/13/1991CN2071384U Permanent magnetic contactor
02/06/1991EP0411213A1 Vacuum relay with a switching element inside the vacuum chamber
02/05/1991US4990875 Circuit breaker
02/05/1991US4990874 Core and contact assembly for a coaxial engine starter
01/1991
01/30/1991CN2070506U Power cut-off self-reset switch
1 ... 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52