Redundant switch having torsional compliance and...

Electricity: circuit makers and breakers – Solid contact – Push button operated

Reexamination Certificate

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Details

C200S330000

Reexamination Certificate

active

06987235

ABSTRACT:
A switch is provided that is of the type that may be installed in a contact block engaging a pushbutton operator via a latch assembly. The switch includes a spanner that engages a pair of terminals, each having a pair of contacts. The outer ends of the spanner are wider than the central portion so as to render the spanner torsionally compliant. The wide outer ends provide a sufficient thermal mass to absorb an arc that may be created when the switch is opened.

REFERENCES:
patent: 4249057 (1981-02-01), Schlegel et al.
patent: 5045655 (1991-09-01), Ludwig et al.
patent: 5744766 (1998-04-01), Sambar et al.
patent: 6198058 (2001-03-01), Graninger et al.
patent: 6376785 (2002-04-01), Graninger
patent: 1 443 954 (1965-07-01), None
patent: 1 080 279 (1967-08-01), None
patent: 1 204 398 (1970-09-01), None

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