Movable or removable closures – With operator for movably mounted closure – Operator drives closure along guide
Patent
1992-05-08
1994-08-30
Milano, Michael
Movable or removable closures
With operator for movably mounted closure
Operator drives closure along guide
74458, E05F 1134, F16H 5517
Patent
active
053415981
ABSTRACT:
Rotary locks used on transit vehicle doors when opened and closed by a rotating helical door drive member. In a preferred embodiment, a first lock utilizes a negative thread portion of the helical drive. A second lock utilizes a rotating lock pawl and stop. The drive and lock can be used to operate door systems with and without separate door hangers. Compensation for camber variations in car structure is provided through the use of spherical mounts or drive member journals.
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Applying Solid-State Position, Speed Monitoring, Photoelectric Level and Flow Sensors, Bulletin of Efector, Inc., 1091 Hawthorn Drive, Itasca, Ill. 60143 (7 pages).
Lidd Francis J.
Mark IV Transportation Products Corporation
Milano Michael
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