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:
May. 23, 2000
Filed:
Dec. 23, 1997
Mark J Kiesel, Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A continuous compression ring and a continuous oil control ring for a piston reciprocally operable in a combustion cylinder of an IC engine, the continuous compression ring being cooperatively receivable in a groove extending around the piston and having a generally G-shaped cross-sectional shape including a circumferentially extending lip positioned to be located radially outwardly of a cylindrical outer surface extending around the piston, the lip adapted for forming a substantially sealed condition around the piston in cooperation with an oil film on the combustion cylinder wall, the continuous oil control ring being cooperatively receivable in another groove extending around the piston and having a generally n-shaped cross-sectional shape including a circumferentially extending leg portion adapted to be positioned radially outwardly of the outer surface of the piston around the piston for scraping the oil film on the combustion cylinder wall during the reciprocal operation of the piston in the combustion cylinder, and a piston construction adapted to facilitate installation of the continuous compression ring and continuous oil control ring around the piston.