Lock cylinder and key with associated security element

Details Lock cylinder and key with associated security element Lock cylinder and key with associated security element

1990-10-15

1992-04-07

Gall, Lloyd A.

Locks

Operating mechanism

Key

70409, 70493, E05B 2706

Patent

active

051016486

ABSTRACT:
A lock cylinder with key, in which the cylinder has a rotor and a stator with radial tumbler pins and the key has depressions corresponding to the tumbler pins, has at least one tumbler pin exercising the function of a control pin (K), in that a zone formed by an offset is used for a flank code (f), provided in addition to the depth code (T) and having a diameter (B) corresponding to an additional code and the associated key has a depression with side flangs (8), whose spacing corresponds to the coded diameter (B) of the offset of the control pin.

REFERENCES:
patent: 1958603 (1934-05-01), Bacon
patent: 3151477 (1964-10-01), Balestrini
patent: 3293893 (1966-12-01), Chesler
patent: 3348392 (1967-10-01), Schreiber
patent: 3393542 (1968-07-01), Crepinsek
patent: 3464243 (1969-09-01), Hawkins
patent: 3494157 (1970-02-01), Coker, Jr.
patent: 3656328 (1972-04-01), Hughes
patent: 4193277 (1980-03-01), Lo
patent: 4289002 (1981-09-01), Gretler
patent: 4325241 (1982-04-01), Keller
patent: 4631941 (1986-12-01), Sjunnesson

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