Floating jaw retention springs for a switch

Details Floating jaw retention springs for a switch Floating jaw retention springs for a switch

1985-07-12

1988-08-23

Cuchlinski, Jr., William A.

Electricity: circuit makers and breakers

Electric switch details

Contact

200162, H01H 150, H01H 142, H01H 2154

Patent

active

047662760

ABSTRACT:
The invention solves the problem of loss of contact between jaws of a stationary contact with a switchblade of a knife switch when the switchblade undergoes lateral motion, as for example, under the influence of electromagnetic forces during short circuit conditions. A jaw for a switch has a base, a pair of electrically conducting jaws for accepting a blade of a switch between the jaws, a pin mounted in a hole passing through the base; retention springs mounted on the pin and producing force against the jaws so as to maintain electrical contact between the jaws and the switchblade, wherein the pin may slide in the hole in the base so that the jaws may follow lateral motion of the switchblade.

REFERENCES:
patent: 1169431 (1916-01-01), Schaefer
patent: 1224186 (1917-05-01), Mahoney
patent: 1576799 (1926-03-01), Thompson
patent: 1586682 (1926-06-01), McCoy
patent: 1884000 (1932-10-01), Lewis
patent: 1988687 (1935-01-01), Jackson
patent: 2221607 (1940-11-01), Samzelius
patent: 2433115 (1947-12-01), Green
patent: 2704838 (1955-03-01), Macha et al.
patent: 3053957 (1962-09-01), Duffield
patent: 3056009 (1962-09-01), Mrenna
patent: 3496319 (1970-02-01), Norden
patent: 3678237 (1972-07-01), Rickert et al.

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