Center stoplight release pin

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Description

FIG. 1 is a perspective view of a center stoplight release pin showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a side view thereof.

Referenced Cited
U.S. Patent Documents
1284101 November 1918 Hemenway
2180633 November 1939 Holt
2388658 November 1945 Pumphrey
3079968 March 1963 Buckley
3176359 April 1965 Ward
Other references
  • Machine Design-The Fasteners Book; 9/29/60, p. 10; Frearson Driving Recess (center, upper right).
Patent History
Patent number: D313344
Type: Grant
Filed: Sep 23, 1988
Date of Patent: Jan 1, 1991
Inventor: Robert D. Tritle (Springfield, OH)
Primary Examiner: B. J. Bullock
Law Firm: Biebel, French & Nauman
Application Number: 7/248,203
Classifications
Current U.S. Class: D/8387