Door operating mechanism

Details Door operating mechanism Door operating mechanism

E - Fixed Constructions

05

F

268/27

E05F 15/16 (2006.01) E05D 13/00 (2006.01)

Patent

CA 1108198

TITLE DOOR OPERATING MECHANISM INVENTOR Tebor MITRO ABSTRACT A novel door mechanism for use with vertically movable doors, in one aspect; (a) eliminates the need for torsion springs, drums, and cables in the operator. This eliminates bird nesting and other ailments associated with that species of doors; and, (b) in vertical lift doors eliminates one of the many counter weights. This is achieved by use of a door moving control line which has flex in only one plane in eg. that the plane is orthogonal to the linear extent of the control line.

302907

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