Door security apparatus

Details Door security apparatus Door security apparatus

1996-05-09

1998-03-10

Mah, Chuck

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Hinge

Having prongs or cooperating structure on leaf

16387, E05D 502

Patent

active

057247056

ABSTRACT:
A door security device for use in securing a door against unauthorized entry. The device includes a protrusion which can be mounted to the hinge side of a door or to the hinge side of a door frame and can be received within a recess in the opposite door or door frame. The protrusion in received by the recess to prevent the door from being removed by removal of a hinge pin.

REFERENCES:
patent: 1105666 (1914-08-01), Johnson
patent: 1923721 (1933-08-01), Glenn
patent: 4057873 (1977-11-01), Bursani
patent: 4063330 (1977-12-01), Triplette
patent: 4085650 (1978-04-01), Flynn
patent: 4131969 (1979-01-01), Suska
patent: 4133114 (1979-01-01), Roach
patent: 4135273 (1979-01-01), Holmes
patent: 4435921 (1984-03-01), Mannel

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