Purses – wallets – and protective covers – Protective cover made of flaccid material – For a door knob or handle
Patent
1988-12-14
1989-09-26
Price, William
Purses, wallets, and protective covers
Protective cover made of flaccid material
For a door knob or handle
292DIG2, B65D 6502
Patent
active
048693057
ABSTRACT:
A doorknob cover that defeats facile rotation of a doorknob. Two layers of cloth or other low friction material are placed in juxtaposition with one another and joined at their respective outermost peripheral edges. A second attachment is made between the materials just radially inwardly of the outermost peripheral edge to form a toroidal cavity to receive a drawstring. The device is placed over a doorknob and the opposite ends of the drawstrings are tied together tightly so that the device cannot be removed from the doorknob unless the knot is first untied. Young children are unable to rotate a doorknob covered by the device due to the double layer of cloth and the low frictional engagement between the inner piece of cloth and the doorknob.
REFERENCES:
patent: 1633988 (1927-06-01), Jones
patent: 2557517 (1951-06-01), Scruggs
patent: 2587285 (1952-02-01), Broscoe
patent: 2610877 (1952-09-01), Weaver
patent: 2781220 (1957-02-01), Zietlow
patent: 3174788 (1965-03-01), Williams
patent: 3556571 (1971-01-01), Laub, Jr.
patent: 4007956 (1977-02-01), Harris et al.
patent: 4069692 (1978-01-01), Hemphill
patent: 4471980 (1984-09-01), Hickman
Mason, Jr. Joseph C.
Price William
Smith Ronald E.
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