Keyless door lock

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Description

FIG. 1 is a top, front, and right side perspective view of a keyless door lock showing our new design;

FIG. 2 is a vertical cross-sectional view thereof, taken along line 14--14 of FIG. 13;

FIG. 3 is right side elevational view of the base plate portion thereof;

FIG. 4 is a left side elevational view of the base plate portion thereof;

FIG. 5 is a front elevational view of the base plate portion thereof;

FIG. 6 is a rear elevational view of the base plate portion thereof;

FIG. 7 is a top plan view of the base plate portion thereof, the bottom being identical in appearance;

FIG. 8 is a front elevational view of the stop plate portion thereof;

FIG. 9 is a top plan view of the stop plate portion thereof;

FIG. 10 is a bottom plan view of the stop plate portion thereof;

FIG. 11 is a left side elevational view of the stop plate portion thereof;

FIG. 12 is a right side elevational view of the stop plate portion thereof;

FIG. 13 is a rear elevational view of the stop plate portion thereof;

FIG. 14 is a vertical cross-sectional view of the stop plate portion thereof, taken along line 14--14 of FIG. 13; and,

FIG. 15 is a front elevational view of an alternate embodiment thereof, showing the stop plate portion, with the only difference from the first embodiment residing in the appearance of the central keyway aperture.

Referenced Cited
U.S. Patent Documents
D127610 June 1941 Krumsiek et al.
D343565 January 25, 1994 Turner
2442733 June 1948 Schultz
4408789 October 11, 1983 Miller
5193866 March 16, 1993 Driskill et al.
Patent History
Patent number: D368844
Type: Grant
Filed: Apr 22, 1994
Date of Patent: Apr 16, 1996
Assignee: JWT Corporation (Carrollton, TX)
Inventors: Andy Q. Wingfield (Irving, TX), James L. Thomas (Irving, TX)
Primary Examiner: Brian N. Vinson
Attorney: W. Thomas Timmons & Kelly Timmons
Application Number: 0/21,715
Classifications
Current U.S. Class: D/8331