Elevator system control responsive to hoistway access detection

Details Elevator system control responsive to hoistway access detection Elevator system control responsive to hoistway access detection

2011-06-07

2011-06-07

Salata, Jonathan (Department: 2837)

Elevator, industrial lift truck, or stationary lift for vehicle

With call registration means

Shared by plural load supports

C187S391000

Reexamination Certificate

active

07954606

ABSTRACT:
An elevator system (20) includes a sensor (30, 36) for detecting the presence of an individual within a hoistway (24). A controller (32) prevents movement of an elevator car (22) whenever an individual is in the hoistway (24). A pit override device (34) provides an override signal to the controller (32) permitting movement of the elevator car (22) if someone is in a pit (26). A car top override device (38) selectively provides an override signal to the controller (32) permitting movement of the car. A disclosed example includes controlling at least one light (40) within the hoistway (24) in conjunction with movement or attempted movement of the elevator car (22).

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International Search Report and Written Opinion of the International Searching Authority for International application No. PCT/US05/35740 mailed Nov. 14, 2006.

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