U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Portable privacy lock

Patent 5542723 Issued on August 6, 1996. Estimated Expiration Date: Icon_subject September 25, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

1607789

3183319

3596961

Portable door lock
Patent #: 4326394
Issued on: 04/27/1982
Inventor: Stein

Portable door lock
Patent #: 4330146
Issued on: 05/18/1982
Inventor: Sessions, Jr.

Portable door lock
Patent #: 4589692
Issued on: 05/20/1986
Inventor: Boyd

Auxiliary door lock
Patent #: 5280977
Issued on: 01/25/1994
Inventor: Piva

Lock for doors
Patent #: 5291760
Issued on: 03/08/1994
Inventor: Schrader

Portable door lock Patent #: 5415444
Issued on: 05/16/1995
Inventor: Hull, et al.

Inventor

Application

No. 533655 filed on 09/25/1995

US Classes:

292/289, PORTABLE SECURER PLATE OR BAR292/258, Portable292/288PORTABLE

Examiners

Primary: Meyers, Steven N.
Assistant: Lecher, Donald J.

Attorney, Agent or Firm

International Class

E05C 019/18

Abstract

A portable privacy lock is disclosed for use in securing a door that swings on hinges from an open position to a closed position in which the edge of the door opposite its hinged side is adjacent to a closure surface with a clearance gap therebetween. The lock includes a flexible webbing which has a first end and a second end, and which is provided with a plurality of holes between said first and second ends. The lock also includes a first securing plate that is attached to the first end of the webbing and a second securing plate that is attached to the webbing at an intermediate position between the first and second ends thereof. The second plate is also provided with a hole that is aligned with one of the holes in the webbing. The lock also includes a latch that is adapted to receive a drawstring and to releasably engage it from motion with respect thereto, and a drawstring, one end of which is attached to the first plate or to the first end of the webbing. The drawstring is threaded through the holes in the webbing and the second plate to engagement with the latch. The lock is utilized by inserting the first plate through the clearance gap between the door and its adjacent closure surface. The latch is disengaged from the drawstring so that the drawstring may be pulled to fold the webbing to move the second plate into position across the clearance gap and on the opposite side thereof from the first plate, so as to secure the door from motion with respect to the adjacent closure surface. The latch may then be engaged to hold the drawstring so as to maintain the plates in position with respect to each other.

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