Cylinder lock

Details Cylinder lock Cylinder lock

1985-07-19

1987-01-13

Wolfe, Robert L.

Locks

Operating mechanism

Key

70378, 70419, 70409, E05B 1514, E05B 2704

Patent

active

046354557

ABSTRACT:
A twisting tumbler lock with dual locking function has tumbler points at tumbler positions selectively offset forwardly or rearwardly and selectively rotatable to different angular positions to create an enormous number of keying combinations. A key according to the invention includes one or more bits which are offset forwardly or rearwardly of a corresponding tumbler axis.

REFERENCES:
patent: 2097407 (1937-10-01), Spinello
patent: 3656328 (1972-04-01), Hughes
patent: 4424692 (1984-01-01), Rousseau

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