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:
Jul. 30, 2002
Filed:
Nov. 28, 2000
Applicant:
Inventors:
Todd D. Craft, Pleasant Prarie, WI (US);
Gregory J. Binversie, Grayslake, IL (US);
Joseph Anton Pecina, Lindenhurst, IL (US);
Assignee:
Bombardier Motor Corporation of America, Grant, FL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02B 7/508 ;
U.S. Cl.
CPC ...
F02B 7/508 ;
Abstract
A piston for a two-stroke direct fuel injection internal combustion engine coupled to drive a marine propulsion unit is provided. The piston has a generally cylindrical body with one or more grooves formed therein. Each groove defines an opening to receive a respective piston ring. A thermal-protection coating is applied by anodizing the interior of the grooves. The respective region of the piston cylindrical body surrounding the respective groove openings is free of the coating.