Key construction

Details Key construction Key construction

1977-06-27

1978-08-29

Wolfe, Robert L.

Locks

Operating mechanism

Key

70366, E05B 1902

Patent

active

041094972

ABSTRACT:
A key construction for use with a rotary disc-tumbler lock wherein the key has a shank portion and a bow or other rotating means on one end thereof. The key shank is formed with a vee-groove longitudinally thereof which vee-groove permits insertion and retraction of the key shank into the lock without disturbing the position of the tumblers in the lock. Further, the shank of the key being formable with warding grooves extending along the shank.

REFERENCES:
patent: 2123940 (1938-07-01), Gray

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