Circuit breaker

Details Circuit breaker Circuit breaker

2005-05-31

2005-05-31

Donovan, Lincoln (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Tripping means

C335S174000

Reexamination Certificate

active

06900712

ABSTRACT:
In order to prevent a mistrip caused by a closing operation of a toggle link mechanism, a trip lever is not mounted on a fixed frame of an opening/closing mechanism, but is mounted on a yoke of a disengaging device serving as a support base for the trip lever. The opening/closing mechanism and the disengaging device are held in a common casing. As a result, an impact force, produced at the time of closing the contact between two contacts by the toggle link mechanism, is transmitted through the casing, so that such a mistrip can be prevented.

REFERENCES:
patent: 3602852 (1971-08-01), Brackett et al.
patent: 3970976 (1976-07-01), Nicol
patent: 4595895 (1986-06-01), Fujii et al.
patent: 5041805 (1991-08-01), Ohishi et al.
patent: 5066935 (1991-11-01), Harper
patent: 5874877 (1999-02-01), Kawashima et al.
patent: 5886604 (1999-03-01), Kume
patent: 6087914 (2000-07-01), Kralik
patent: 6313723 (2001-11-01), Chen et al.
patent: 1-32618 (1989-07-01), None

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