Knob latch

- Southco, Inc.
Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a front perspective view of a knob latch showing our new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a is a front elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a front perspective view of a second embodiment of a knob latch showing our new design;

FIG. 10 is a bottom perspective view thereof;

FIG. 11 is a left side elevational view thereof;

FIG. 12 is a right side elevational view thereof;

FIG. 13 is a front elevational view thereof;

FIG. 14 is a rear elevational view thereof;

FIG. 15 is a top plan view thereof;

FIG. 16 is a bottom plan view thereof;

FIG. 17 is a cross sectional view taken along lines i—i of FIG. 15;

FIG. 18 is a front perspective view of a third embodiment of a knob latch showing our new design;

FIG. 19 is a bottom perspective view thereof;

FIG. 20 is a left side elevational view thereof;

FIG. 21 is a right side elevational view thereof;

FIG. 22 is a front elevational view thereof;

FIG. 23 is a rear elevational view thereof;

FIG. 24 is a top plan view thereof;

FIG. 25 is a bottom plan view thereof;

FIG. 26 is a top perspective view of a fourth embodiment of a knob latch showing our new design

FIG. 27 is a bottom perspective view thereof;

FIG. 28 is a left side elevational view thereof;

FIG. 29 is a right side elevational view thereof;

FIG. 30 is a front elevational view thereof;

FIG. 31 is a rear elevational view thereof;

FIG. 32 is a top plan view thereof;

FIG. 33 is a bottom plan view thereof;

FIG. 34 is a cross sectional view taken along line i—I of FIG. 32;

FIG. 35 is a front perspective view of a fifth embodiment of a knob latch showing our new design;

FIG. 36 is a bottom perspective view thereof;

FIG. 37 is a left side elevational view thereof;

FIG. 38 is a right side elevational view thereof;

FIG. 39 is a front elevational view thereof;

FIG. 40 is a rear elevational view thereof;

FIG. 41 is a top plan view thereof;

FIG. 42 is a bottom plan view thereof;

FIG. 43 is a top perspective view of a sixth embodiment showing our new design;

FIG. 44 is a bottom perspective view thereof;

FIG. 45 is a left side elevational view thereof;

FIG. 46 is a right side elevational view thereof;

FIG. 47 is a front elevational view thereof;

FIG. 48 is a rear elevational view thereof;

FIG. 49 is a top plan view thereof;

FIG. 50 is a bottom plan view thereof; and,

FIG. 51 is a cross sectional view taken along i—i of FIG. 49.

Claims

The ornamental design for a knob latch, as shown and described.

Referenced Cited
U.S. Patent Documents
3391419 July 1968 Thorne-Thomsen
4114506 September 19, 1978 Aimar
4556244 December 3, 1985 Bisbing
4689976 September 1, 1987 Larsen
D302243 July 18, 1989 Gonzalez
D312769 December 11, 1990 Bisbing
6113160 September 5, 2000 Johansson et al.
6371313 April 16, 2002 Walter et al.
6575503 June 10, 2003 Johansson et al.
6640592 November 4, 2003 Vickers
Other references
  • Southco, Latches and Access Hardware Handbook 45 NA, pp. E-8, E-9, G16 and G17 (6 pages).
  • EMKA, plastic quarter turn latch (1 page).
  • EMKA, Wing Knob—program 1000 (1 page).
  • DIRAK Modular Hardware System, Wing-Handle Zinc Die or PA and Wing-Handle for Padlock (1 page).
  • DIRAK Modular Hardware Systems, Polyamide Quarter-Turn and Clip-in Quarter-Turn (1 page).
Patent History
Patent number: D525513
Type: Grant
Filed: Aug 26, 2004
Date of Patent: Jul 25, 2006
Assignee: Southco, Inc. (Concordville, PA)
Inventors: Glenn E. Anderson (Malvern, PA), Stephen K. Spatig (West Chester, PA), Michael R. Ienna (Rochester, NY), Richard S. Perriello (Rochester, NY)
Primary Examiner: Paula A. Greene
Attorney: Paul and Paul
Application Number: 29/212,101
Classifications
Current U.S. Class: D8/307; D8/338; D8/398