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Class Information
Number: 335/241
Name: Electricity: magnetically operated switches, magnets, and electromagnets > Magnets and electromagnets > With magneto-mechanical motive device (e.g., electromagnet with armature) > With time delay armature-movement control means > Auxiliary control coil
Description: Subject matter wherein an auxiliary control coil or magnet is used to provide the time delay.

Patents under this class:

Patent Number Title Of Patent Date Issued
8212640 Tool having buffered electromagnet drive for depth control Jul. 3, 2012
7948338 Electromagnetic switch equipped with built-in electronic control circuit May. 24, 2011
7911303 Circuit breaker and opening and closing method thereof Mar. 22, 2011
7701314 Solenoid assembly with over-molded electronics Apr. 20, 2010
7019308 Thermal compensation in magnetic field influencing of an electron beam Mar. 28, 2006

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