Spark plug

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Description

FIG. 1 is a side elevational view of the spark plug showing my new design;

FIG. 2 is a side elevational view thereof shown rotated 90 degrees counterclockwise from FIG. 1;

FIG. 3 is a top plan view thereof; and

FIG. 4 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D56554 November 1920 Devaney
2012657 August 1935 Cobb
2350731 June 1944 Dobrosavljevitch
Foreign Patent Documents
552639 June 1932 DEX
111256 November 1917 GBX
Patent History
Patent number: D289998
Type: Grant
Filed: Feb 27, 1984
Date of Patent: May 26, 1987
Assignee: Nico Pyrotechnik, Hanns-Juergen Diederichs GmbH & Co. (Trittau)
Inventor: Willi L/u/ bbers (Trittau)
Primary Examiner: Susan J. Lucas
Assistant Examiner: C. E. Heflin
Application Number: 6/583,684
Classifications
Current U.S. Class: D13/16