Power operator for sliding plug doors

Details Power operator for sliding plug doors Power operator for sliding plug doors

1997-05-13

1999-04-13

Redman, Jerry

Movable or removable closures

Closures interconnected for concurrent movement

Opposed similar movement

49210, 49211, E05C 706

Patent

active

058932364

ABSTRACT:
A powered operator for sliding plug doors mounted on a movable carriage mounted overhead of an opening in the side wall of a transit vehicle, said doors including a single electric prime mover driving dual helical drives, each operating a door hanger attached to a single door panel over and away from said opening and for moving said carriage out of said side wall pocket. Door hangers used provide controlled deflection of door panels when in a fully open position. Drive linkages lock door panels when in a plugged position. The operator also provides guidance for the lower edge of said door panels during plugging and unplugging operations. Control elements and a central controller provides sequential door panel movement into and out of a pocket in the transit car side wall.

REFERENCES:
patent: 1411039 (1922-03-01), Lacey
patent: 3261128 (1966-07-01), Slopa et al.
patent: 4091570 (1978-05-01), Favrel
patent: 4698938 (1987-10-01), Huber
patent: 5142823 (1992-09-01), Brandenburg et al.
patent: 5483769 (1996-01-01), Zweili
Transferio Tebel; Product Info No. R.M. 02.212D Apr. 12, 1994.

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