Lock bypassing tool

Details Lock bypassing tool Lock bypassing tool

1983-12-19

1985-12-31

Smith, Gary L.

Locks

Operating mechanism

Key

70409, 81488, E05B 1912

Patent

active

045612714

ABSTRACT:
A tool for operating the bolt mechanism of a cylinder lock without the use of a key. The tool comprises a slender steel rod provided on its end with at least one hingedly pivotable knuckle member or portion constantly urged by spring bias means to a pivoted position at a right angle to the axis of the shank. The tool is inserted through the plug key slot until the jointed knuckle member or portion projects beyond the end of the key slot and is automatically extended to a 90.degree.-angle such as to operate the bolt mechanism in the same manner as the conventional lock cam.

REFERENCES:
patent: 34460 (1862-02-01), Bennett
patent: 384592 (1888-06-01), Ross
patent: 711889 (1902-10-01), Wormald
patent: 1191127 (1916-07-01), Rosenshine
patent: 1221703 (1917-04-01), Dube
patent: 1337085 (1920-04-01), Malys
patent: 1426468 (1922-08-01), Esson
patent: 1446760 (1923-02-01), Miller
patent: 2035798 (1934-06-01), Denull
patent: 4338863 (1982-07-01), Block

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