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. 12, 1991
Filed:
May. 22, 1990
Naohiro Iwaya, Kanagawa, JP;
Atsugi Unisia Corporation, Kanagawa, JP;
Abstract
A piston for an internal combustion engine is provided. This piston includes a piston body which has an upper ring land portion and a skirt portion, pin boss portions formed in the skirt portion into which a piston pin is inserted for attaching the piston body to a connecting rod, and a rib portion projecting from an inner wall of the skirt portion. The rib portion extends from the first areas which include cross points where the centerline, perpendicularly passing the longitudinal axis of the pin boss, intersects the inner wall of the piston skirt to the second areas which include the bottoms of the pin boss portions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile