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. 14, 2005
Filed:
Feb. 19, 2003
Yoji Utsumi, Shizuoka-ken, JP;
Yoji Utsumi, Shizuoka-ken, JP;
Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;
Abstract
A balancer device for engines, in which first and second balancer shafts are arranged in parallel to a crankshaft and the crankshaft rotatingly drives first and second balancer weights at the same speed as that of the crankshaft, characterized in that the first balancer weight is arranged on one end of the first balancer shaft in a direction along the crankshaft, the second balancer weight is arranged on the other end of the second balancer shaft in the direction along the crankshaft, and the first and second balancer shafts are made close to the crankshaft so that loci of rotation of the first and second balancer weights partially overlap a locus of rotation of that portion of the crankshaft, which is coupled to a conrod when viewed in the direction along the crankshaft.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile