Key for a cylinder lock, especially for locking systems

Details Key for a cylinder lock, especially for locking systems Key for a cylinder lock, especially for locking systems

1990-12-19

1992-07-21

Gall, Lloyd A.

Locks

Operating mechanism

Key

70403, 70407, 70409, E05B 1908

Patent

active

051312492

ABSTRACT:
A key for a cylinder lock has a relatively slender profile region and a bitting region of greater thickness and a generally cylindrical configuration with or without longitudinally-extending flats. The bitting recesses can be provided round this bitting region and axially therealong and the profile region can be formed with grooves milled in its parallel flanks to increase key variability.

REFERENCES:
patent: 1074418 (1913-09-01), Doughty
patent: 2620649 (1952-12-01), Bernardo
patent: 4667495 (1987-05-01), Girard et al.
patent: 4787225 (1988-11-01), Hauser et al.

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