Key and lock system

Details Key and lock system Key and lock system

1979-08-20

1981-06-02

Wolfe, Robert L.

Locks

Operating mechanism

Key

70358, 70409, E05B 1906

Patent

active

042703727

ABSTRACT:
A key for a safety lock having two grooves on each flat side with pairs of identical grooves being located symmetrically opposed about the central axis of the key profile. The grooves (2,3) and the tumbler cams are fashioned in pairs with different dimensions, for the purpose of increasing the number of possible combinations. Thus, both the width and/or depth of a groove may be constant or variable.

REFERENCES:
patent: 3264852 (1966-08-01), Gysin
patent: 3412588 (1968-11-01), Schwegler

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