Miscellaneous hardware (e.g. – bushing – carpet fastener – caster – Hinge – Including means to retain pintle in hinge
Patent
1993-01-19
1994-08-16
Larson, Powell A.
Miscellaneous hardware (e.g., bushing, carpet fastener, caster,
Hinge
Including means to retain pintle in hinge
F05D 512
Patent
active
053374533
ABSTRACT:
A butt hinge pin lock is provided for securing standard butt hinges against tampering, by removal of the hinge pins. The device described herein is attached to the door, in a manner, and location, that interferes with the removal of the hinge pins by unauthorized persons. It consists of a locking member, which is mounted on the door, using two or more tamper resistant bolts, and employs hardware on the inside of the door, that allows the device to be easily removed from the inside of the room, when necessary. No modifications to the hinges are required, and modifications to the door consist only in the drilling of access holes for the mounting hardware of the invention.
REFERENCES:
patent: 73120 (1868-01-01), Reiber
patent: 926949 (1909-07-01), Maas
patent: 1109074 (1914-01-01), Lamon
patent: 1865052 (1932-06-01), Wolters
patent: 2566486 (1951-09-01), Gawlik
patent: 2814498 (1957-11-01), Hull
patent: 2998898 (1961-09-01), Gerr et al.
patent: 3263269 (1966-08-01), McGahee
Gurley Donald M.
Larson Powell A.
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