Switch actuator

Details Switch actuator Switch actuator

1989-09-21

1990-10-23

Cusick, Ernest G.

Electricity: circuit makers and breakers

Electric switch details

Actuators

200342, 200345, 200521, 200523, 200573, H01H 348, H01H 1370

Patent

active

049654209

ABSTRACT:
A switch actuator includes a base and a plunger mounted for movement on the base. An electrical contact is mounted for relative movement on the base to establish an electrical connection. An actuator includes a head portion and a pair of spring arms. The spring arms extend into a bore in the plunger for frictionally grasping the plunger by spring biased forces against the interior walls of the bore. The actuator has a head portion exposed from an open end of the plunger bore for effecting movement of the electrical contact to alter the state of the electrical connection. The frictional engagement between the spring arms and the plunger provide overtravel or relative movement therebetween and the affect of the spring arms substantially eliminates any affect from wear between the plunger and the actuator.

REFERENCES:
patent: 2547765 (1951-04-01), Lund
patent: 2697364 (1954-12-01), Koch
patent: 3165611 (1965-01-01), Hagberg
patent: 4613737 (1986-09-01), Nishijima
patent: 4778960 (1988-10-01), Blair

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