Elevator – industrial lift truck – or stationary lift for vehicle – With barrier for regulating access to load support – Includes motor or motor driven linkage for shifting barrier
Reexamination Certificate
2004-09-03
2009-08-18
Salata, Jonathan (Department: 2837)
Elevator, industrial lift truck, or stationary lift for vehicle
With barrier for regulating access to load support
Includes motor or motor driven linkage for shifting barrier
C187S391000, C049S026000, C318S280000
Reexamination Certificate
active
07575101
ABSTRACT:
A detector of foreign objects, and particularly fingers, between the doors and the contiguous walls of landing and car openings in an elevator with glass car and landing doors includes a light beam emitter and a receiver. The emitter, which is located near an opening frame edge of the car, emits a light beam that extends transversally across the car and landing glass doors from the vertical car opening frame edge to the opposite vertical landing frame edge. The receiver, which receives the emitted light beam, is adapted to detect any obstacle to the light beam and to order the simultaneous halt and reversal, as required, of the car and landing doors.
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patent: WO 2004/058622 (2004-07-01), None
International Preliminary Report on Patentability for PCT/IB2004/002895, dated Jul. 31, 2006.
Otis Elevator Company
Salata Jonathan
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