Elevator control switch and position indicator assembly

Details Elevator control switch and position indicator assembly Elevator control switch and position indicator assembly

1988-01-14

1989-02-21

Shoop, Jr., William M.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

187136, B66B 300

Patent

active

048057398

ABSTRACT:
An elevator control switch and position indicator assembly for mounting on a panel comprises a piezoelectric element and a control circuit connected to the element for generating an elevator control pulse in response to an output signal from the element. A push button assembly is arranged such that when the push button is operated, a force is applied to the piezoelectric element, and the push button assembly is restrained so that it can only deflect the element a predetermined distance sufficient to produce an output signal. The assembly further comprises an integral indicator device for providing an indication to the operator that an elevator control signal has been generated. The invention also can be configured to provide an indication of the position of an elevator car.

REFERENCES:
patent: 2525768 (1950-10-01), Bruns
patent: 2525769 (1950-10-01), Bruns
patent: 2738489 (1956-03-01), Borden
patent: 3777093 (1973-12-01), Sterns et al.
patent: 3952837 (1976-04-01), Rice
patent: 3989964 (1976-11-01), Gikow et al.
patent: 4120381 (1978-10-01), Otto et al.
patent: 4134107 (1979-01-01), Miller et al.

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