Elevator call buttons having plural illuminated indications of a

Details Elevator call buttons having plural illuminated indications of a Elevator call buttons having plural illuminated indications of a

1992-10-21

1995-10-03

Dougherty, Thomas M.

Elevator, industrial lift truck, or stationary lift for vehicle

Having call button with indicator

187384, B66B 114, B66B 300

Patent

active

054544483

ABSTRACT:
Elevator car call buttons and hall call buttons are illuminated in a first fashion (such as a first color or intermittent flashing) to indicate that the service corresponding to that call button is available to passengers (while buttons corresponding to unavailable service would have either no illumination or different illumination); the buttons then become illuminated in a distinctly different way when a service call corresponding to that button has been registered. The illumination may be thin rings surrounding the call button switch or the call button switch itself; many variations of color, position, and flashing vs. steady are disclosed.

REFERENCES:
patent: 4805739 (1989-02-01), Lind et al.
patent: 4836336 (1989-06-01), Schroder
patent: 4915197 (1990-04-01), Schroder
Abstract of Japanese Patent Application 01-288585, Dated Nov. 1989.

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