Changeable key type lock barrel

Details Changeable key type lock barrel Changeable key type lock barrel

1986-12-29

1988-03-08

Wolfe, Robert L.

Locks

Operating mechanism

Key

70384, E05B 2702, E05B 3510

Patent

active

047292318

ABSTRACT:
The present invention provides a lock barrel, particularly a changeable key type barrel which is characterized by using of a profile changing key to reset locking keys in the barrel by turning the barrel for 180 degrees and another profile changing key to restore the barrel to the original position by turning the barrel for 180 degrees but simultaneously the locking keys are pushed to different heights by means of some side plates to complete profile changing.

REFERENCES:
patent: 3667262 (1972-06-01), Hill
patent: 4069694 (1978-01-01), Raymond
patent: 4376382 (1983-03-01), Raymond

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