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:
Apr. 12, 2011
Filed:
Apr. 28, 2009
Ho-tien Chen, Tainan, TW;
Ho-Tien Chen, Tainan, TW;
Other;
Abstract
A screw locking tool includes a main body composed of a shank to be combined with a hand tool and a sleeve. The shank has front end continually connected with the sleeve having its surface disposed with an annular recess with an O-shaped ring fitted therein and bored with insert holes communicating with an accommodating cavity of the sleeve for receiving positioning steel balls, with an elastic element fixed in the accommodating cavity. A screwing element secured with the accommodating cavity has a shank with a minor-diameter and a medium-diameter annular recess for receiving steel balls to prevent the screwing element from slipping off. A receiving groove at the front end of the screwing element is bored with insert holes respectively for fitting a positioning steel ball and has an annular recess fitted therein with an O-shaped ring for positioning the steel balls.