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:
Jun. 04, 2002
Filed:
Aug. 10, 2001
Setsuo Harada, Hiroshima, JP;
Hiroyuki Oda, Hiroshima, JP;
Hirokazu Matsuura, Hiroshima, JP;
Kouji Asanomi, Hiroshima, JP;
Masayuki Saiki, Hiroshima, JP;
Mazda Motor Corporation, Hiroshima, JP;
Abstract
A valve drive mechanism includes a generally cylindrically shaped tappet assembly ( ) comprising a center tappet ( ) and a side tappet ( ). The center tappet ( ) has a circular-arcuate side walls ( ) formed with vertical side shrouds ( ) at opposite sides of each side wall ( ) which overlap and slide contact with opposite end guide walls ( ) of the side tappet ( ), respectively. When the tappet assembly ( ) is in an unlocked state so as to transmit rotation of the side cams ( ), the vertical side shroud ( ) of the center tappet ( ) slide on the vertical side walls ( ) of the side tappet so as thereby to guide slide movement of the center tappet ( ) relative to the side tappet ( ).