Passenger actuated elevator alarm device

Details Passenger actuated elevator alarm device Passenger actuated elevator alarm device

2007-10-23

2007-10-23

Salata, Jonathan (Department: 2837)

Elevator, industrial lift truck, or stationary lift for vehicle

Having call button with indicator

C187S390000

Reexamination Certificate

active

10842584

ABSTRACT:
A signal for warning of danger in the car is sent to a monitoring chamber without a suspect noticing, and the interior of the car is monitored without alarming the suspect. A call for service is registered upon activating the car manipulating panel and an alarm is registered upon further activation of the car manipulating panel.

REFERENCES:
patent: 4839631 (1989-06-01), Tsuji
patent: 5131508 (1992-07-01), Suzuki
patent: 04-226050 (1994-03-01), None
patent: 06100259 (1994-04-01), None
patent: 06156912 (1994-06-01), None

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