Shock-resistant under-voltage release

Details Shock-resistant under-voltage release Shock-resistant under-voltage release

2005-10-06

2009-02-03

Barrera, Ramon M (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

With operation-inhibiting means

C335S172000, C335S176000

Reexamination Certificate

active

07486164

ABSTRACT:
A tripping device comprises a coil frame, a coil, a plunger, a spring, and an anti-shock device. The coil is fixedly coupled to the coil frame and has a cylindrical channel extending therethrough. The plunger is reciprocatingly received within the cylindrical channel and the spring is structured to bias the plunger within the cylindrical channel. The anti-shock device includes at least one of a number of anti-shock devices structured to eliminate movement of the coil relative to the coil frame and a number of anti-shock devices structured to eliminate movement of the plunger relative to the cylindrical channel. An under-voltage release mechanism comprises a mounting bracket, a tripping device, and an angled support. The mounting bracket includes a first portion and a second portion. The angled support is fixedly coupled to the mounting bracket between the first and second portions and is structured to prevent flexing of the mounting bracket.

REFERENCES:
patent: 4710739 (1987-12-01), Heyne et al.
patent: 4951021 (1990-08-01), Theisen et al.
patent: 5453724 (1995-09-01), Seymour et al.
patent: 5886605 (1999-03-01), Ulerich et al.
patent: 6052047 (2000-04-01), Malingowski et al.
patent: 6232855 (2001-05-01), Malingowski et al.
patent: 6255924 (2001-07-01), Turner et al.

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