Pin tumbler locking mechanism

Details Pin tumbler locking mechanism Pin tumbler locking mechanism

1992-05-07

1993-02-23

Gall, Lloyd A.

Locks

Operating mechanism

Key

70494, 70378, 70409, E05B 2704

Patent

active

051879573

ABSTRACT:
A pin tumbler locking mechanism comprises an inner cylinder and an outer cylinder which the inner cylinder fits and rotates in. The inner cylinder has a plurality of pin holes for pins to fit and move therein. Each of the pins have a male threaded portion to screw with a female threaded portion and passing through a central nonround hole in a gear to rotate together with the gear by a rack provided on a key. The key is adapted to rotate the gears and the pins together when the key is inserted in or pulled out of a key hole in the inner cylinder so that the pins are raised up or lowered down in the pin holes to have one of their ends protrude in pin holes in the outer cylinder or to hide within the pin holes in the inner cylinder to lock or unlock the mechanism.

REFERENCES:
patent: Re30198 (1980-01-01), Oliver et al.
patent: 1304506 (1919-05-01), Pearson
patent: 2023847 (1935-12-01), Liss
patent: 2194469 (1940-03-01), Fremon
patent: 2629249 (1953-02-01), Mendelsohn
patent: 2660047 (1953-11-01), Villalba
patent: 3726116 (1973-04-01), DiMotta
patent: 4235086 (1980-11-01), Genakis

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