Switch operating mechanism

Details Switch operating mechanism Switch operating mechanism

1996-09-25

1998-09-08

Gellner, Michael L.

Electricity: circuit makers and breakers

Foot operated

200 1B, 200 16C, H01H 314

Patent

active

058047867

ABSTRACT:
An operating mechanism is disclosed for effecting actuation of rheostats, air valves, electric switches and the like using a single spring having a single apex whose movement effect operation of one or more devices. A further mechanism is disclosed for effecting movement of the spring apex whereby at least one additional spring is engaged during movement of the spring apex to provide increased resistance to movement of the spring apex thereby to provide tactile indication of the position of the operating mechanism.

REFERENCES:
patent: 2857493 (1958-10-01), Tascher
patent: 3433914 (1969-03-01), Ericsson
patent: 4293746 (1981-10-01), Braaten
patent: 4354071 (1982-10-01), Pietschmann
patent: 4586398 (1986-05-01), Yindra
patent: 4843200 (1989-06-01), Parlatore et al.

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