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:
Oct. 17, 2000
Filed:
Jul. 11, 1997
Tadao Hasegawa, Toyota, JP;
Kiyoshi Sugimoto, Okazaki, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi-Ken, JP;
Abstract
An apparatus for adjusting an engine valve. The valve is actuated by a cam on a camshaft. The cam has a cam surface that drives the valve by way of a follower. The radius of the cam surface varies in the axial direction in an angular section of the cam. A pulley surrounds one end of the camshaft. The camshaft is rotated relative to the pulley to change the valve timing and the camshaft is also moved axially to change the lift of the valve by changing the area of the cam surface engaged by the follower.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile