Safety devices for overhead garage door springs

Details Safety devices for overhead garage door springs Safety devices for overhead garage door springs

1985-10-29

1987-02-03

Downey, Kenneth

Movable or removable closures

Up-and-over type; e.g., moves from vertical to withdrawn...

267 74, E05D 1522

Patent

active

046400494

ABSTRACT:
A safety device for overhead garage and like door structures having a counterbalance spring structure including a coil spring which includes a safety cable extending through the open center of the coil spring and adjustably anchored at each end to the garage structure so as to be placed under sufficient tension to contain the spring against substantial horizontal or vertical movement in the event of breakage.

REFERENCES:
patent: 1983856 (1934-12-01), Johnson
patent: 2758833 (1956-08-01), Harbert
patent: 3429072 (1969-02-01), Sammons
patent: 3575404 (1971-04-01), Wesch
patent: 3958367 (1976-05-01), Fairman
patent: 4082133 (1978-04-01), Halopoff

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