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:
Mar. 30, 2010
Filed:
May. 11, 2005
Koshi Tabe, Sakai, JP;
Masahiro Yamanaka, Izumisano, JP;
Toshio Tetsuka, Sakai, JP;
Shingo Shiraishi, Sakai, JP;
Hideya Inoue, Sakai, JP;
Yusuke Nishimoto, Sakai, JP;
Atsuhiro Emura, Sakai, JP;
Koshi Tabe, Sakai, JP;
Masahiro Yamanaka, Izumisano, JP;
Toshio Tetsuka, Sakai, JP;
Shingo Shiraishi, Sakai, JP;
Hideya Inoue, Sakai, JP;
Yusuke Nishimoto, Sakai, JP;
Atsuhiro Emura, Sakai, JP;
Shimano Inc., Osaka, JP;
Abstract
A bicycle chainring is formed from a first member and an second member. The first member includes a center rotational axis, a crank attachment portion with a plurality of chainring attachment openings and an annular tooth portion with a plurality of chain engaging gear teeth. The second member disposed around the center rotational axis and is fixedly attached to overlie at least one of the crank attachment portion and the annular tooth portion to reinforce the first member without obstructing access to the chainring attachment openings.