Safety device for overhead doors

Details Safety device for overhead doors Safety device for overhead doors

1992-04-20

1994-08-16

Cuomo, Peter M.

Movable or removable closures

Up-and-over type; e.g., moves from vertical to withdrawn...

49203, E05F 1500

Patent

active

053375203

ABSTRACT:
In conjunction with a conventional frame-enclosed overhead door system, a safety device for preventing the door from falling in the event that the upper rollers of the door break away from the door or become disengaged from their tracks, the invention comprises a pair of supports each having a first and second end. The first end of each support is pivotally secured to opposite side edges of the door substantially at the midpoint between the rollers on each side edge of the door. The second end of each support is pivotally secured, opposite each other, to an area of the garage adjacent to the intersection where the vertical and horizontal tracks meet. The supports are substantially equal in length and parallel to each other. In the event that the upper rollers of the door break away from the door, the supports will prevent further significant movement of the door.

REFERENCES:
patent: 1280920 (1918-10-01), Wexler
patent: 2597824 (1952-05-01), Schreiber
patent: 2923981 (1960-02-01), Beck
patent: 3616575 (1971-11-01), Harris
patent: 4019442 (1977-04-01), Lee et al.
patent: 4520591 (1985-06-01), Calvagno
patent: 4956938 (1990-09-01), DeMent

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