Electricity: circuit makers and breakers – Electric switch details – Actuators
Patent
1983-04-13
1984-07-31
Shepperd, John W.
Electricity: circuit makers and breakers
Electric switch details
Actuators
H01H 312
Patent
active
044632371
ABSTRACT:
A pushbutton assembly for a switch includes a cylindrical housing having an axial bore therethrough, one end of the housing being enlarged to define a cup-shaped cavity communicating with the bore. An elongated tubular actuator body is reciprocally movable in the bore. At one end of the body and received in the cavity is an inverted cup-shaped head having an end wall and a cylindrical side wall. The other end of the body is bifurcated to define flexible legs. An annular recess in the body adjacent to the upper ends of the legs receives an annular projection on the body for limiting axial movement of the actuator. Unitary with the head are three elongated flexible resilient bias members engageable with the housing for resiliently biasing the actuator to a normal rest position. Two embodiments are disclosed, one in which the bias members are intergral with the head side wall and another in which the bias members are integral with the head end wall.
REFERENCES:
patent: 3582594 (1971-06-01), Twyford
patent: 3641286 (1972-02-01), Berezowski
patent: 3761919 (1973-09-01), Baumann
patent: 3808389 (1974-04-01), Ramsay et al.
patent: 3974351 (1976-08-01), Solov et al.
patent: 4066860 (1978-01-01), Kawasaki
patent: 4197440 (1980-04-01), Debaigt
patent: 4282414 (1981-08-01), Johnston et al.
Kidorf Renee S.
Shepperd John W.
Wico Corporation
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