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:
Nov. 17, 2015
Filed:
Aug. 19, 2010
Shinji Hirabayashi, Anjo, JP;
Shusuke Ito, Anjo, JP;
Shinji Hirabayashi, Anjo, JP;
Shusuke Ito, Anjo, JP;
MAKITA CORPORATION, Anjo, JP;
Abstract
A screw-fastening tool having a continuously-variable transmission traction drive includes a continuously-variable transmission, a thrust cam mechanism of the continuously-variable transmission and a clutch plate of a fastening torque setting mechanism arranged in series between an electric motor and a spindle. A traction grease having a high traction coefficient is used as a lubricant for a traction drive. A grease reservoir or felt members in sliding contact with oppressing parts are disposed in a transmission case.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile