Hinge security stud

Details Hinge security stud Hinge security stud

1977-02-28

1978-04-25

Britts, Ramon S.

Closure fasteners

Clamps

Portable

16137, 292300, F16B 2500

Patent

active

040856500

ABSTRACT:
A stud for attaching to a door hinge to prevent the removal of the door by the removal of the hinge pins. The security stud has an elongated screw having self-threaded metal threads at the end thereof and wood threads between the metal threads and the head of the screw so that the screw can be threaded into both metal and wooden doors. The head of the screw has dual bevel portions abutting each other in opposite directions; and a stud extending in the opposite direction from the threaded portion of the screw with a slot for a screwdriver tip.

REFERENCES:
patent: 742525 (1903-10-01), Tower
patent: 1126531 (1915-01-01), Liebmann
patent: 1190069 (1916-07-01), Abernethy
patent: 1923721 (1933-08-01), Glenn
patent: 3031049 (1962-04-01), Somville
patent: 3337925 (1967-08-01), Meyer
patent: 3937506 (1976-02-01), Dean
patent: 3970340 (1976-07-01), Taft

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