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:
Apr. 17, 2001
Filed:
Mar. 25, 1999
Kiyoshi Terauchi, Isesaki, JP;
Sanden Corporation, Gunma, JP;
Abstract
For being slidably inserted into a cylinder bore defined by a cylindrical surface extending in a predetermined direction, a piston (,) has a head portion (,) extending perpendicular to the predetermined direction and a barrel portion (,) connected to the head portion. The head portion has an outer circumferential portion which is close to the cylindrical surface when the piston is inserted in the cylinder bore. The barrel portion has at least three wall portions (,) which are extended from the outer circumferential portion in the predetermined direction. The wall portions are arranged in a circumferential direction to form a substantially cylindrical shape in cooperation with one another.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile