Twist-lock spark plug

Skip to: Description  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a perspective view of a twist-lock spark plug of my new design.

FIG. 2 is a side elevational view thereof, the opposite side being a mirror image;

FIG. 3 is a top plan view thereof.

Referenced Cited
U.S. Patent Documents
1026269 May 1912 Knauff
1211157 January 1917 Hughes
1269782 June 1918 Braselfon
2353620 July 1944 Weinerth
3050658 August 1962 Lay et al.
3092290 June 1963 Hoelle
3323911 June 1967 Kiyoshi Inove
3458849 July 1969 Marks et al.
3478302 November 1969 Chirumbolo
Patent History
Patent number: D284001
Type: Grant
Filed: Sep 6, 1983
Date of Patent: May 27, 1986
Inventor: Floyd D. Harris (Amherst, VA)
Primary Examiner: Susan J. Lucas
Assistant Examiner: Clare E. Heflin
Attorney: Norman B. Rainer
Application Number: 6/529,362
Classifications
Current U.S. Class: D13/16