Auxiliary door lock for a powered garage door

Details Auxiliary door lock for a powered garage door Auxiliary door lock for a powered garage door

1987-06-15

1989-12-05

Moore, Richard E.

Closure fasteners

Bolts

Multiple

49199, 49280, E05C 924

Patent

active

048848310

ABSTRACT:
One or more spring lock devices are included at the inner sides of a conventional garage door positioned to engage with the side door frame. The spring locks are actuated to the open position by operative connection, usually through tension lines to a garage door drive mechanism, which is connected to the garage door through a lost motion mechanism so that initial movement of the drive mechanism moves the spring lock devices and opens them before the garage door mechanism moves the garage door. For closing, the spring lock devices can be of the wedge striker type which will close and lock with the closing motion of the garage door or of a straight pin type, in which case the door is adjusted so that its balance mechanisms always biases the door toward the closed position when the door is near its closed position.

REFERENCES:
patent: 1615120 (1927-01-01), Fischer
patent: 3368307 (1968-02-01), Prudy
patent: 3708917 (1973-01-01), Streeter
patent: 4080757 (1978-03-01), Westerman
patent: 4597224 (1986-07-01), Tucker

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