Locks – Operating mechanism – Using a powered device
Patent
1994-07-06
1997-02-25
Dino, Suzanne L.
Locks
Operating mechanism
Using a powered device
70413, E05B 4700
Patent
active
056050658
ABSTRACT:
The apparatus is an improved magnetically operated locking device having a key and a cylinder. The cylinder has a longitudinal axis with a stator and a rotor. An interface is defined between the stator and the rotor. The rotor is rotatable by the key above the longitudinal axis of the cylinder. The improvement of the present invention includes a plurality of magnets on the key which are cooperative with a plurality of magnets mobile in the cylinder. The plurality of magnets on the key are gripped in sheaths of ferromagnetic material. The plurality of magnets on the cylinder are also gripped in sheaths of ferromagnetic material. The magnets of the cylinder are slidable in an area of the interface in holes formed within the cylinder. The plurality of magnets in the cylinder are slidable in the hole so as to lock the rotor against rotation relative to the stator. The magnets of the cylinder are magnetically identical and identically geometrically distributed as the plurality of magnets in the key.
REFERENCES:
patent: 3420077 (1969-01-01), Drazin
patent: 3602020 (1971-08-01), Kajita
patent: 3797288 (1974-03-01), Hallmann
patent: 3837195 (1974-09-01), Delto
patent: 3967480 (1976-07-01), Stackhouse
patent: 4285220 (1981-08-01), Kajita
patent: 4631939 (1986-12-01), Herriott
patent: 5074136 (1991-12-01), Kim et al.
Lopez-Casals Jesus
Sarthou Jacques
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