Non-contact elevator call button

Details Non-contact elevator call button Non-contact elevator call button

1998-12-23

2000-12-19

Salata, Jonathan

Elevator, industrial lift truck, or stationary lift for vehicle

With monitoring, signalling, and indicating means

Monitors passengers

187388, B66B 300

Patent

active

061616559

ABSTRACT:
An elevator call button transmits infrared radiation into the space adjacent an elevator, and a call request is recognized by infrared radiation reflected from a potential passenger to an infrared receiver. Thus not only is contact with the button not required, the use of a finger or like-sized object is not required in order to place a call.

REFERENCES:
patent: 4044860 (1977-08-01), Kaneko et al.
patent: 4800368 (1989-01-01), Wisner
patent: 4839631 (1989-06-01), Tsuji
patent: 4874063 (1989-10-01), Taylor
patent: 4915197 (1990-04-01), Schroeder
patent: 5420430 (1995-05-01), Trett
patent: 5487451 (1996-01-01), Hughes et al.
patent: 5698824 (1997-12-01), Platt
patent: 5914466 (1999-06-01), Durand

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