Pushbutton switch with collar

Details Pushbutton switch with collar Pushbutton switch with collar

1978-12-18

1979-12-11

Pollard, Steven M.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200295, 200296, 200314, H01H 312, H01H 1304, H01H 900

Patent

active

041784936

ABSTRACT:
In an arrangement for front mounting of pushbutton switching devices by means of a front ring screwed by means of its internal thread onto an external thread of a collar, the diameter of the disc shaped pushbutton is larger than the diameter of the external thread of the collar. The front ring has inward protruding extensions and the pushbutton itself has cut-outs at its circumference corresponding to the extensions.
The pushbutton has a large actuating area without increase in the thread diameter.

REFERENCES:
patent: 2883496 (1959-04-01), White
patent: 3175065 (1965-03-01), Strader
patent: 3437775 (1969-04-01), Piber
patent: 3740501 (1973-06-01), Kiessling et al.
patent: 3984797 (1976-10-01), Rayburn

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