Pick-resistant axial split-pin tumbler lock

Details Pick-resistant axial split-pin tumbler lock Pick-resistant axial split-pin tumbler lock

1989-11-01

1990-12-18

Wolfe, Robert L.

Locks

Operating mechanism

Key

70378, 70419, E05B 2708

Patent

active

049777688

ABSTRACT:
An axial split-pin tumbler lock having a rotatable operating element and a fixed element configured to define a shear plane therebetween, and wherein aligned bores extend in the two elements on opposite sides of the shear plane, with specially configured code pins and drive pins slidable in the bores in the elements across the shear plane, the specially configured code and drive pins being so constructed that they will bind or hang up in the respective bores in any number of axial positions during an attempt to pick the lock, thereby giving multiple and differing false readings of an unlocked condition of the lock and rendering it pick resistant.

REFERENCES:
patent: 1619252 (1927-03-01), George
patent: 2043205 (1936-06-01), Thompson
patent: 2059129 (1970-10-01), Maxwell
patent: 3878700 (1975-04-01), Lopez
patent: 4193277 (1980-03-01), Lo
patent: 4683739 (1987-08-01), Hughes
patent: 4716749 (1988-01-01), Johnson

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