Removable core cylinder lock

Details Removable core cylinder lock Removable core cylinder lock

1980-08-04

1982-05-11

Wolfe, Robert L.

Locks

Operating mechanism

Key

70380, E05B 2704

Patent

active

043286909

ABSTRACT:
A removable core cylinder lock utilizing twisting tumblers and a latch bar provides maximum security. Both operating and control keys have at least one skew cut bit to operating the twisting tumblers. A centrally positioned cylinder retainer is rotatable with a control key to remove the lock from its shell.

REFERENCES:
patent: 2814941 (1957-12-01), Best
patent: 3206958 (1965-09-01), Best
patent: 3298211 (1967-01-01), Russell
patent: 3499302 (1970-03-01), Spain
patent: 3667264 (1972-06-01), Surko
patent: 4075878 (1978-02-01), Best

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