Rotary lock

Description

FIG. 1 is a top, front, and left side perspective view of a rotary lock showing our 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 bottom plan view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a rear elevational view thereof;

FIG. 8 is a top, front, and left side perspective view of an alternate embodiment showing our new design;

FIG. 9 is a front elevational view thereof;

FIG. 10 is a left side elevational view thereof;

FIG. 11 is a top plan view thereof;

FIG. 12 is a right side elevational view thereof; and

FIG. 13 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
2540686 February 1951 Milburn
2638370 May 1953 Price
2666319 January 1954 Price
2919569 January 1960 Davis
2923145 February 1960 Labrie
Patent History
Patent number: D318007
Type: Grant
Filed: Jan 13, 1989
Date of Patent: Jul 9, 1991
Assignee: A.L. Hansen Manufacturing Company (Waukegan, IL)
Inventors: Randall C. Hansen (Lake Forest, IL), Gibert H. Krahn (Kenosha, WI)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Brian N. Vinson
Law Firm: Willian Brinks Olds Hofer Gilson & Lione
Application Number: 7/297,537
Classifications
Current U.S. Class: D/8336