Lock with reference plate

Details Lock with reference plate Lock with reference plate

1988-01-04

1989-01-10

Wolfe, Robert L.

Locks

Operating mechanism

Key

70419, E05B 2902

Patent

active

047964480

ABSTRACT:
This invention relates to a lock where a key or a dial sets a set of elements into a unique configuration. The elements do not contain any information relating to the key. They are preferably all alike and, preferably, each of them terminates in a pointed end. Co-operating with these elements, the lock contains a perforated or indented reference plate where the perforation, or indentations, are so located that when the proper key or combination is fed into the lock the ends of the elements can all enter the plate and the lock can be opened. The lock has the additional feature that when it is desired to change the key, or the combination, only the plate needs to be changed. The key-set or the dial-set elements remain the same.

REFERENCES:
patent: 3167944 (1965-02-01), Pickering
patent: 3505842 (1970-04-01), Taylor
patent: 3555858 (1971-01-01), Owen et al.
patent: 3837196 (1974-09-01), Gartner et al.
patent: 3868196 (1975-02-01), Lown
patent: 4114410 (1978-09-01), Astier
patent: 4163376 (1979-08-01), Miller
patent: 4193277 (1980-03-01), Lo
patent: 4485648 (1984-12-01), Rabinow
patent: 4599877 (1986-07-01), Rabinow
patent: 4627252 (1986-12-01), Lo

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