The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 09, 1982
Filed:
Dec. 05, 1979
Applicant:
Inventor:
John S Waite, Welshpool, GB;
Assignee:
GKN Floform Limited, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01T / ;
U.S. Cl.
CPC ...
29 2512 ; 313141 ;
Abstract
A method of making a center electrode for a spark plug comprising uniting together, by heating and without the use of brazing materials, slugs of copper and nickel alloy and then extruding the united slugs to form a central electrode having a copper core and a nickel alloy sheath.