Plunger lock mechanism

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Description

FIG. 1 is a top, front, right side isometric view of a plunger lock mechanism for securement to a barrier frame, such as a patio door frame with the plunger retracted;

FIG. 2 is an isometric view similar to FIG. 1 with the plunger extended for securing a moveable barrier, such as a patio door;

FIG. 3 is a right side elevational view thereof, the opposite side being identical;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D293878 January 26, 1988 Kayser
D319776 September 10, 1991 Barrett et al.
D349035 July 26, 1994 Baber
D351780 October 25, 1994 Baber
1580611 April 1926 Kirkpatrick
3710052 January 1973 Jette, Jr.
3803575 April 1974 Gotanda
3851325 November 1974 Maged
3967080 June 29, 1976 Errani
4317969 March 2, 1982 Riegler et al.
4336518 June 22, 1982 Holce et al.
4465997 August 14, 1984 Hines
4587517 May 6, 1986 Engstrom et al.
4609910 September 2, 1986 Geringer et al.
4639022 January 27, 1987 Dunphy
4903010 February 20, 1990 Greene
5155460 October 13, 1992 Huckins et al.
Other references
  • Fig. 1 diagram of a conventional plunger lock to secure a movable barrier without a reed switch. Fig. 2 diagram of a cross-section of a conventional plunger lock without a reed switch.
Patent History
Patent number: D384875
Type: Grant
Filed: Oct 30, 1996
Date of Patent: Oct 14, 1997
Assignee: Sentrol, Inc. (Tualatin, OR)
Inventors: David Sayler (Portland, OR), Henry Young Chin (Portland, OR)
Primary Examiner: Brian N. Vinson
Law Firm: Stoel Rives LLP
Application Number: 0/61,763
Classifications
Current U.S. Class: D/8339
International Classification: 0807;