Door jammer lock

Details Door jammer lock Door jammer lock

1985-03-29

1987-04-14

Moore, Richard E.

Closure fasteners

Clamps

Portable

292339, 292244, E05C 1754

Patent

active

046572937

ABSTRACT:
A door jammer device for preventing opening from the outside of a inward-opening door is disclosed, comprising a substantially U-shaped member having a shorter arm, a longer arm, and a base. Screw means are installed though a threaded hole through the longer arm towards the shorter arm, for attaching the member to the door by clamping the door between the screw means and the shorter arm. A jamming member is pivotally attached to the longer arm and angles downwardly away from the U-shaped member to engage the floor. Thus, a door may be locked by tightening the screw means to clamp the device to the outside edge of the door near the floor, such that the jamming member engages the floor. The jamming member has downwardly protruding teeth at its floor-engaging end, and angles downwardly at an angle of approximately 15 to 20 degrees from the horizontal.

REFERENCES:
patent: 112673 (1871-03-01), Anderson
patent: 551569 (1895-12-01), Barnes
patent: 709057 (1902-09-01), Smith
patent: 778823 (1904-12-01), Fay
patent: 2595709 (1952-05-01), Sande
patent: 2739005 (1956-03-01), Naffziger
patent: 2774622 (1956-12-01), Priebe
patent: 3287050 (1966-11-01), Ferrante
patent: 4198088 (1980-04-01), Tochihara

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