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:
Mar. 07, 1978
Filed:
Jan. 17, 1977
Applicant:
Inventors:
Glenn F Hyde, Timonium, MD (US);
Thomas W Alban, Glen Burnie, MD (US);
Assignee:
Koppers Company, Inc., Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B05B / ; F16J / ;
U.S. Cl.
CPC ...
2772 / ; 427 34 ; 291566 ;
Abstract
Piston rings for internal combustion engines having the bearing face plasma sprayed with a superior scuff and wear resistant material. The bearing surface of the rings is plasma jet sprayed with a bond coat comprised of nickel, chromium and aluminum and a scuff and wear resistant coating of aluminum oxide, titanium dioxide and ferric oxide.