Locks – Operating mechanism – Key
Patent
1988-01-19
1989-01-17
Wolfe, Robert L.
Locks
Operating mechanism
Key
70424, 70211, E05B 1714
Patent
active
047980699
ABSTRACT:
A protection device useful for preventing access to a cylinder key lock on a lever handle handle door lock incorporates a first and second half which are joined together along a junction to form a united body. The united body has a closed bottom wall and a substantially circular circumferential wall as well as a top wall. Locking means are adapted to the body to secure the first and second halves together. The top wall includes an opening partially formed in one of the halves and formed in further in the other half. The opening is sized and shaped to fit around the shank portion of a lever handle door lock. The device further includes a rectangular opening in the circular circumferential wall which is located such that its elongated dimension is essentially parallel to the top wall. The protection device is fit over a lever handle door lock by inserting the lever portion of the lever handle door lock through the rectangular opening and positioning the opening in the top wall around the shank of the lever handle door lock to position the cylinder lock of the door lock within the united body of the protection device.
REFERENCES:
patent: 2070955 (1937-02-01), Parisoe
patent: 3245240 (1966-04-01), DeForrest
patent: 4134279 (1979-01-01), Ross
patent: 4372138 (1983-02-01), DeForrest
patent: 4463584 (1984-08-01), DeForrest
Boswell Herb
Wolfe Robert L.
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