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:
Dec. 30, 1997
Filed:
Jul. 22, 1994
Applicant:
Inventors:
Timothy Alan Hegemier, Eaton, OH (US);
John Dudley Binford, Richmond, IN (US);
Assignee:
Dana Corporation, Toledo, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23F / ;
U.S. Cl.
CPC ...
1231932 ;
Abstract
An internal combustion engine cylinder bore has a hybrid surface to optimize both wear of the cylinder and oil consumption of the engine. The surface has a coarsely honed surface over at least one of a top portion and a bottom portion of the bore surface. A mid-portion disposed between the top portion and the bottom portion has a finely honed surface.