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. 13, 1990
Filed:
Aug. 07, 1989
Applicant:
Inventor:
Masafumi Sougawa, Hamamatsu, JP;
Assignee:
Sanshin Kogyo Kabushiki Kaisha, Hamamatsu, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02F / ;
U.S. Cl.
CPC ...
1231 / ; 92186 ;
Abstract
A piston for a reciprocating machine such as an internal combustion engine that has a pair of piston pin bosses that are defined by parallel surfaces that are adapted to engage and confine a connecting rod therebetween. Lubricant recesses are formed in the bosses and extend from the bore to an area where they can receive lubricant.The recesses are such that the bearing surfaces of the bosses subtends an arc greater than 180.degree..
Sougawa, Masafumi. (1990). Piston for internal combustion engine (U.S. Patent No. 4969433). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4969433
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile