Locks – Operating mechanism – Key
Patent
1999-02-11
2000-09-26
Boucher, Darnell M.
Locks
Operating mechanism
Key
70DIG58, 70428, 292DIG2, E05B 1302
Patent
active
061229458
ABSTRACT:
A new keyless door knob security device with stabilizer arm for preventing access to a keyhole of a door knob to prevent unauthorized access. The inventive device includes a central shaft that has first and second ends and a longitudinal axis extending between the ends. A claw ring has a plurality of claws extending outwardly from it and an aperture through it. The central shaft extends through the aperture of the claw ring. The claws are adapted for grasping the door knob. A cover is slidably positionable along the central shaft such that sliding the cover in a first direction presses the claws towards each other such that the claws grasp the door knob. Sliding the cover in a second direction permits the claws to move apart from each other. A locking mechanism permits selective locking of the cover in a locked orientation and an unlocked orientation.
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patent: 3556571 (1971-01-01), Laub, Jr.
patent: 3761119 (1973-09-01), Bennett et al.
patent: 4301669 (1981-11-01), Floyd
patent: 4629229 (1986-12-01), Correnti et al.
patent: 5027626 (1991-07-01), Appelbaum
patent: 5609049 (1997-03-01), Rundle et al.
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