Electronic time lock for vault doors and the like

Description

FIG. 1 is a perspective view of an electronic time lock for vault doors or the like showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side 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
D295255 April 19, 1988 Mauch
D299905 February 21, 1989 Fish et al.
3187528 June 1965 Check
Patent History
Patent number: D306395
Type: Grant
Filed: Feb 9, 1988
Date of Patent: Mar 6, 1990
Inventors: Scott F. Von Bergen (1299 Crans-Pres-Celigny), Michael T. Ralph (Redditch, Worcestershire B97 4LX)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Brian N. Vinson
Law Firm: Mason, Fenwick & Lawrence
Application Number: 7/154,108
Classifications
Current U.S. Class: D/8331; Element Or Attachment (D99/43)