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
2008-07-15
2008-07-15
Cuomo, Peter M. (Department: 3654)
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
C187S331000, C187S335000, C187S330000, C049S120000
Reexamination Certificate
active
07398862
ABSTRACT:
A door locking system for a freight or passenger elevator or goods lift installation having vertically spaced landings served by a vertically movable car, the landings and car each being protected by associated horizontal slide doors, a mechanical interlock device at each landing that prevents a landing door from opening without the presence of the car in registration with the landing, a door lock on the car for normally preventing the car door from opening when the car is out of registration with any landing, the interlock device being arranged to mechanically enable the door lock to release the car door to open when the car is in registration with a landing.
REFERENCES:
patent: 4947964 (1990-08-01), Husmann
patent: 5246089 (1993-09-01), Husmann et al.
patent: 6474448 (2002-11-01), Zappa
patent: 7077242 (2006-07-01), Cocher
patent: 2005/0139429 (2005-06-01), Bisang et al.
patent: 1266860 (2002-12-01), None
patent: 2005280854 (2005-10-01), None
Cuomo Peter M.
Kruer Stefan
Pearne & Gordon LLP
The Peelle Company Ltd.
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