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:
Nov. 20, 2001
Filed:
Dec. 01, 1999
Applicant:
Inventors:
Joseph Michael Keller, Grand Blanc, MI (US);
Richard Frederick Beckmeyer, Davisburg, MI (US);
William J. LaBarge, Bay City, MI (US);
Assignee:
Delphi Technologies, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 1/346 ;
U.S. Cl.
CPC ...
H01J 1/346 ;
Abstract
A resistor seal composition useful in resistor spark plugs, comprises glass, at least one metal oxide, at least one filler material, and a branched or straight chained zirconium carboxylate. The glass comprises a strontium borate glass and/or a borosilicate glass. Metal oxides include aluminum oxide, zinc oxide, and zirconium oxide. Filler materials include silicon dioxide and mullite.