Key for an improved twisting tumbler cylinder lock

Details Key for an improved twisting tumbler cylinder lock Key for an improved twisting tumbler cylinder lock

1986-10-14

1988-03-22

Wolfe, Robert L.

Locks

Operating mechanism

Key

70364A, E05B 1904

Patent

active

047320222

ABSTRACT:
A key according to the invention includes one or more bits which are offset forwardly or rearwardly of a corresponding tumbler axis of a twisting tumbler lock with dual locking function having 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.

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patent: 4098103 (1978-07-01), Raskevicius
patent: 4103526 (1978-08-01), Surko
patent: 4164857 (1979-08-01), Genakis
patent: 4208894 (1980-06-01), Surko
patent: 4235086 (1980-11-01), Genakis
patent: 4325241 (1982-04-01), Keller
patent: 4424692 (1984-01-01), Rousseau

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