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:
Nov. 23, 1976
Filed:
Sep. 03, 1974
Applicant:
Inventors:
Fred W Ryan, Seahurst, WA (US);
Robert J Webber, Edmonds, WA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01B / ; F16J / ;
U.S. Cl.
CPC ...
92157 ; 123 4138 ; 92208 ;
Abstract
A seal for use within the interior portions of a piston, primarily on a diesel engine which has a pressurized oil supply which is forced upwardly through the connecting rod and sprayed on to the upper portion of the piston. The seal substantially closes the area between the connecting rod and the interior sidewalls of the piston skirt. The oil is thus restricted in flow, building up pressure within the top portion of the piston and causing the oil to contact the upper interior portion for cooling the piston and further, forced to lubricate the bushings on the wrist pin.