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:
Aug. 23, 2005
Filed:
Apr. 01, 2004
Michael Bernard Riley, Fort Collins, CO (US);
Michael Bernard Riley, Fort Collins, CO (US);
Motive Engineering Co., Fort Collins, CO (US);
Abstract
In a variable phased valve lifter of an internal combustion engine, a roller lifter is allowed to move along a constraining face of a constraining mechanism in a first direction, and the constraining mechanism is allowed to move freely in a second direction. As the roller lifter moves through its arcuate path, the flat surface(s) of the roller lifter will slide across the constraining face(s) of the constraining mechanism, and end members of the constraining mechanism slide fore-and-aft in at least one stationary block. The roller lifter is thus prevented from rotating about its longitudinal axis as it moves in arcuate fashion in cooperation with the constraining mechanism.