Locks – Operating mechanism – Key
Patent
1979-11-07
1981-12-15
Wolfe, Robert L.
Locks
Operating mechanism
Key
70408, 70460, E05B 1900
Patent
active
043052673
ABSTRACT:
Exchangeable key covers, and a related system and method, each key cover at least partially enclosing the proximal end of a hotel or like key, each cover being preferably formed of synthetic resinous material, such as polyethylene, and removably force-fit over the proximal end of the key to display room identification indicia and, if desired, other indicia, whereby no key interconnecting chains, tags or the like are required and the key covers are easily and accurately exchanged between keys in correspondence with rotation of the locks.
REFERENCES:
patent: 1837114 (1931-12-01), Cicourel
patent: 3786659 (1974-01-01), Elder
Jones David J.
Nish Terry E.
Foster Lynn G.
Wolfe Robert L.
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