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Class Information
Number: 335/156
Name: Electricity: magnetically operated switches, magnets, and electromagnets > Electromagnetically actuated switches > With protective means for switch or contacts
Description: Subject matter wherein the structure includes at least one means whereby the device is protected from physical or electrical damage; such as, burnout, contact burning or pitting, physical breakage or damage due to jar, overheating, etc.


Patents under this class:

Patent Number Title Of Patent Date Issued
7532097 Slot motor housing and circuit interrupter including the same May. 12, 2009
7492244 Magnetically activated contacting device Feb. 17, 2009
7482901 Circuit breaker Jan. 27, 2009
7053739 Electrical contacting device and method of making the same May. 30, 2006
7030722 High-temperature shutdown protecting relay Apr. 18, 2006
6958895 Protection device with a contact breaker mechanism Oct. 25, 2005
6729016 Method for making a modular reed switch assembly May. 4, 2004
6650210 Electromechanical switch device Nov. 18, 2003
6621393 Electromechanical contactor Sep. 16, 2003
6512433 Protection relay and protected control set with front wiring Jan. 28, 2003
6501356 Method for determining the remaining service life of the switch contacts in an electric switching device and electric switching device with an evaluation unit for carrying out said method Dec. 31, 2002
6501355 System having a switching device and an evaluation device for determining a remaining service life of a contact piece Dec. 31, 2002
6483408 Circuit breaker with bypass for redirecting high transient current and associated method Nov. 19, 2002
6414575 Circuit breaker having an encapsulated auxiliary coil assembly Jul. 2, 2002
6337031 Flame-retardant resin magnet material Jan. 8, 2002
6320486 Electromagnetic relay with a fuse Nov. 20, 2001
6229416 Magnetic switch for starter used in internal combustion engine May. 8, 2001
6094117 Electromagnetic switching device with restricted guidance Jul. 25, 2000
6043728 Flame-resistant resin material, flame resistant resin magnet material, and electron beam controller comprising the flame-resistant resin magnet material Mar. 28, 2000
6040750 Electromagnetic switching device Mar. 21, 2000
5969244 Switch assembly for withstanding shock and vibration Oct. 19, 1999
5734308 Electromagnetic monostable small relay Mar. 31, 1998
5672919 Low current binary input subsystem Sep. 30, 1997
4926282 Electric circuit breaking apparatus May. 15, 1990
4847719 Apparatus and method for protecting the contacts of an electrical switch from current surges Jul. 11, 1989
4638275 Electric switching unit comprising a gas-tight casing for protection of contacts Jan. 20, 1987
4573030 Sealed relay structure Feb. 25, 1986
4243964 Electromagnetically operated switch, particularly starter switch for automotive starter motors Jan. 6, 1981
4219861 Protector circuit for solenoid operator Aug. 26, 1980
4203084 Ventilated electromagnetic switch May. 13, 1980
4158828 Relay device Jun. 19, 1979



 
 
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