Portable anti-theft door lock

Details Portable anti-theft door lock Portable anti-theft door lock

1997-12-29

2000-03-14

Lindsey, Rodney M.

Closure fasteners

Portable securer plate or bar

Sliding holding member

292288, E05C 1918

Patent

active

060362421

ABSTRACT:
A portable anti-theft door lock includes a lock body, a positioning bar, and an alarm device. The lock body is comprised of upper and lower casings having end threaded portions. Urging nuts are fitted over the end threaded portions, one being adjustable, the other being provided with an elastomeric element. One of the end threaded portions accommodates an alarm device provided with a switch having a trigger shaft. A press rod is also disposed inside the threaded portions with its press portion projecting from a side hole. An end of the press rod engages a recess of a slide block. The slide block is provided with a projection as well. The projection engages a fastening hole of the positioning bar having a circular end. The positioning bar passes through a central open slot of the lock body.

REFERENCES:
patent: 1299808 (1919-04-01), Stroke
patent: 1671454 (1928-05-01), Stoutenburgh
patent: 3161428 (1964-12-01), Zook
patent: 4285535 (1981-08-01), Leary
patent: 4878701 (1989-11-01), Rondel et al.
patent: 5664814 (1997-09-01), Lin

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