Locks – Operating mechanism – Key
Patent
1981-02-05
1982-03-30
Wolfe, Robert L.
Locks
Operating mechanism
Key
70358, 70362, 70364A, 70409, 70423, E05B 1714, E05B 1906, E05B 2704
Patent
active
043218113
ABSTRACT:
An improved locking mechanism is provided with a fixed outer cylinder and at least two side-by-side rows of resiliently urged pins disposed in a staggered relation therein. A face plate contains a nonrotatable key slot in angular disorientation to the pins and a key is provided with a plurality of biased grooves forming inclined planes to depress the pins as the key, imposed in an inner cylinder, are rotated together through the plane of the pins. The inner cylinder is connected to a bolt actuating linkage in a conventional manner. A pin bar having a plurality of reversely biased grooves forming inclined planes in the same profile as the key is disposed in a longitudinally extending channel in the inner cylinder. The face plate is formed of an anti-drill metal secured to an intermediate housing by crimping in a peripheral area which is inaccessible between the intermediate and an outer housing. At least two rows of staggered pins in the outer cylinder permits the use of five movable pins with one fixed pin, permitting a greater number of combinations.
REFERENCES:
patent: 1477318 (1923-12-01), Crass
patent: 1766784 (1930-06-01), Gregory
patent: 3802230 (1974-04-01), Tickett
patent: 3824818 (1974-07-01), Neale
patent: 4161871 (1979-07-01), Ziegler
Burg Donald E.
Merritt Ingrid
Van Der Wall Robert J.
Van Der Wall Robert J.
Wolfe Robert L.
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