Door closure assembly

Details Door closure assembly Door closure assembly

1985-07-22

1987-02-10

Moore, Richard E.

Closure fasteners

Operators with knobs or handles

292DIG61, 292DIG62, 292144, 292150, E05C 116

Patent

active

046418679

ABSTRACT:
The assembly includes a door with rotatable door handle connected thereto, and a primary door locking mechanism. The door is hinged for opening and closing in a frame disposed in an entry way. The door includes a handle hub lock having a hub locking plate around the handle hub, a protrusion extending from the locking plate, a bolt member having a recess adapted to receive the protrusion, a bolt biasing mechanism, and a biasing force reversal mechanism for causing the bolt member to move in a direction opposite to the direction in which the bolt biasing member moves. The biasing mechanism preferably includes a plunger extending from the leading door edge toward the door jamb and biasable thereby, during door closing, against the bolt to move it into the locked position, and a spring connected to each of the plunger and bolt member. In one embodiment, magnets magnetically bias the slide bolt member to the desired locked or unlocked position.

REFERENCES:
patent: 1126181 (1915-01-01), Cleaver
patent: 3069193 (1962-12-01), Kirk
patent: 4437693 (1984-03-01), Godec

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