Electromagnetic switching device

Details Electromagnetic switching device Electromagnetic switching device

2003-08-27

2008-10-07

Barrera, Ramon M (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

With operation-inhibiting means

C335S132000, C200S043110, C200S050020

Reexamination Certificate

active

07432789

ABSTRACT:
An electromagnetic switching device includes an electromagnetic drive device and at least one electrical contact that, when a starting current is applied to the drive device, can be transferred by the drive device from a disconnect position (contact opened) into a bridging position (contact closed). When the switching device is fully installed, the contact can be blocked in the disconnect position and can be mechanically blocked in the disconnect position by an arresting element that can be connected to the switching device. As a result, the contact remains in the disconnect position even when the starting current is applied to the drive device.

REFERENCES:
patent: 3745492 (1973-07-01), Grunert
patent: 4688011 (1987-08-01), Lemmer et al.
patent: 5844186 (1998-12-01), Meriwether
patent: 6642820 (2003-11-01), Emura et al.
patent: 6750746 (2004-06-01), Bauer et al.
patent: 8203407 (1996-08-01), None
patent: WO 99/56295 (1999-11-01), None
English language translation of Japanese Office Action issued in connection with corresponding Japanese Application No. 2004-540466 mailed Oct. 25, 2007.

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