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:
Sep. 14, 2004
Filed:
Jun. 05, 2002
Akira Ono, Higashimatsuyama, Saitama, JP;
Akio Yumoto, Kumagaya, JP;
Other;
Abstract
A power ratchet wrench including a yoke that is in sliding contact with opposing faces of a distal end bifurcated portion of the wrench housing, guide bushings fitted and fixed in the distal end bifurcated portion and inserted in the hole of the yoke to support the yoke, a spindle inserted in the yoke, and a protruding member that prevents the spindle from being pulled out. The spindle that turns a workpiece is supported by the guide bushings. The motion converter of the wrench includes a swing lever rotatable in a back-and-forth fashion in the wrench housing; and the engagement portion at one end of the swing lever engages a ball on an eccentric shaft of a speed-reduction assembly, and a cylindrical portion at another end of the swing lever is slidably engaged with a U-shaped groove of the yoke.