Movable or removable closures – Operator interrelated with closure latch release – Motor driven
Patent
1990-01-02
1991-03-05
Kannan, Philip C.
Movable or removable closures
Operator interrelated with closure latch release
Motor driven
49199, 160188, E05F 1500
Patent
active
049967959
ABSTRACT:
This is an automatic locking and unlocking mechanism for use with an automatic garage door opening system. A spring-biased locking bar is attached to the garage door for vertical sliding motion. There is a pivot plate mounted to the top of the garage door including a pair of vertical members with a pivot pin disposed between them. A lock-lifting arm is disposed between the vertical members with the pivot pin through a first hole at one end. A connecting cable is connected between a second hole at the other end of the lock-lifting arm and the locking bar. A slider member is disposed between the vertical members and has the operating arm of the automatic garage door opener connected thereto for sliding the slider member. The slider member includes a lifting slot operably connected to the lock-lifting arm for lifting the lock-lifting arm when the slider member is slid to an open and unlocked position and for lowering the lock-lifting arm when the slider member is slid to a closed and locked position. The slider member also has provision for preventing the operating arm of the automatic garage door opener from lifting the top of the garage door to open the garage door until the slider member has slid from the closed and locked position to the open and unlocked position and for preventing the slider member from sliding from the open and unlocked position to the closed and locked position until the operating arm of the automatic garage door opener has lowered the top of the garage door to a fully closed position.
REFERENCES:
patent: 3704548 (1972-12-01), Wiegleb
patent: 3708917 (1973-01-01), Streeter
patent: 4231191 (1980-11-01), Ellmore
patent: 4442631 (1984-04-01), Weber
patent: 4739584 (1988-04-01), Zellman
patent: 4805344 (1989-02-01), Hrboka
patent: 4827667 (1989-05-01), Jarvis
Kannan Philip C.
Redman Jerry
Streck Donald A.
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