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. 02, 1997
Filed:
Jun. 08, 1995
Applicant:
Inventors:
Samuel L McLaughlin, Lafayette, IN (US);
Stephen V Kelly, Peoria, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01B / ;
U.S. Cl.
CPC ...
92159 ; 92158 ; 92190 ; 92219 ; 1231936 ;
Abstract
An articulated piston apparatus including an improved skirt member wherein the skirt member includes a cooling gallery channel with means for providing a directed flow of lubricant from the cooling gallery channel to the elements of the piston apparatus disposed within the skirt bore, wherein during the upward stroke of the piston apparatus a downwardly directed flow of lubricant flows from the cooling gallery channel through a bore from the cooling gallery channel to the skirt bore and therein impinges those elements of the piston apparatus to assure complete lubrication thereof.