Door knob security device

Details Door knob security device Door knob security device

1994-06-06

1995-06-20

Cuomo, Peter M.

Locks

Special application

For control and machine elements

292DIG2, 70212, 70163, 70165, E05B 1714

Patent

active

054252563

ABSTRACT:
A security device for use with rotatable door knobs which incorporates a pair of generally cylindrical members positioned on a door knob and telescoped together to receive a padlock to prevent separation. The housing members rotate relative to each other and to the door knob to prevent actuation of the door knob and access to any keyed lock that may be incorporated in the knob.

REFERENCES:
patent: 3181523 (1965-05-01), Casey
patent: 3739608 (1973-06-01), Young
patent: 3952564 (1976-04-01), Maines
patent: 4069692 (1978-01-01), Hemphill
patent: 4570470 (1986-02-01), Gray, Sr.
patent: 4838059 (1989-06-01), Johnson
patent: 4876867 (1989-10-01), Leneave
patent: 4899564 (1990-02-01), Gilbert
patent: 5201202 (1993-04-01), Kam

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