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US 7,284,639 B2Granted
Passenger actuated elevator alarm device
AssigneeOtis Elevator Company
InventorsHiromitsu Sasaki, Hideaki Saso
Life of this patent
Estimating the term…
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.
Claims11
An alarm device for an elevator system including an elevator car and a remote monitoring location, the alarm device comprising:
- an information transmission device;
- and,
- a car manipulating panel comprising a call registration device, wherein upon activation of the call registration device a call for service is entered and upon further activation of the call registration device a signal is transmitted to the remote monitoring location.
Dependencies are inferred from the claim text.