Security door

Details Security door Security door

1986-09-29

1987-07-14

Downey, Kenneth

Movable or removable closures

Mounted for multidirectional or oblique movement

Sequential translation and swinging

49254, 49449, 49379, E05D 1558

Patent

active

046793534

ABSTRACT:
A security door comprises first and second vertical door jambs spaced from one another to define a doorway therebetween, and a door for closing the doorway. The second door jamb has a generally channel-shaped recess therein extending generally vertically from adjacent the bottom of the jamb to adjacent the top of the jamb. The security door includes a hinge on the first door jamb for supporting the door adjacent one vertical edge of the door, constituting its inner edge. The hinge enables the door to swing on a generally vertical axis between an open position wherein the door is swung out of the doorway and a closed position wherein the door closes the doorway and the opposite vertical edge of the door, constituting its outer edge, is spaced inwardly from the recess in the second door jamb. The door is movable outwardly in the plane of the doorway from its closed position to a secured position wherein the outer vertical edge is received in the vertical recess thereby to prevent the door from swinging out of its secured position. The security door further includes springs for urging the door away from its secured position and locking apparatus operable to pull the outer vertical edge of the door into the vertical recess and to maintain the door in its secured position against the urging of the springs. The locking apparatus comprises cooperable locking components in the door and the second door jamb.

REFERENCES:
patent: 915397 (1909-03-01), Weiss
patent: 1473494 (1923-11-01), Miely
patent: 4070074 (1978-01-01), Rohme
patent: 4294040 (1981-10-01), Crotti

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