Locks – Special application – For portable articles
Patent
1996-06-11
1997-05-20
Boucher, Darnell M.
Locks
Special application
For portable articles
360137, 70387, 70 14, E05B 7300
Patent
active
056303300
ABSTRACT:
Disclosed is a lock for diskette drive suitable for inserting into and locking up a disk slot of said diskette drive to prevent any unauthorized data reading, writing, and copying, mainly including a top and a bottom covers closed together to contain a springy plate and a push plate therebetween. The push plate is disposed below the springy plate and is always pushed backward by a first compression spring. The bottom cover has a back recess into which a lock body is positioned. A spindle extends through the lock body for a plurality of lock pins to hang thereon. Front ends of the lock pins project through holes on the lock body to extend into a sliding groove formed on a movable member when a key card is inserted into a card slot on the lock body. The movable member is positioned between the bottom cover and the lock body and over the lock body and is always pushed by a second compression spring to an outward position and has a projection provided to one side thereof. When the key card is inserted into the card slot and the push plate is pushed into the top and the bottom covers with a dent thereof engaging with the projection of the movable member, and then the key card is pulled out, the push plate is locked in place and lift a front hook portion of the springy plate to contact with an inner edge of the disk slot and be retained therein. When the key card is inserted into the card slot again and the movable member is pushed laterally inward, the projection of the movable member disengages from the dent of the push plate, allowing the latter to move backward and the front hook portion of the springy plate to lower down and disconnect from the disk slot.
REFERENCES:
patent: 4685312 (1987-08-01), Lakoski et al.
patent: 4790160 (1988-12-01), Chateau
patent: 4794587 (1988-12-01), Cordiano
patent: 5117661 (1992-06-01), Carl et al.
patent: 5136862 (1992-08-01), Langen
patent: 5268809 (1993-12-01), Eschenburg
patent: 5305621 (1994-04-01), Broadwater
patent: 5355272 (1994-10-01), Kung
patent: 5381684 (1995-01-01), Kawamura
Boucher Darnell M.
Tigerex Enterprise Co., Ltd.
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