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:
May. 24, 2011
Filed:
May. 22, 2007
Xingda Tan, Wendeng, CN;
Xingda Tan, Wendeng, CN;
Shandong Weida Machinery Co., Ltd., Wendeng, Shandong Providence, CN;
Abstract
A drill chuck locked through an inclined wedge surface, comprising a drill body, plural jaws, a nut, an outer sleeve, a control sleeve, a poking claw and a wedge block type lock ring. The wedge block type lock ring is rotatably fitted around the drill body to drive the nut to rotate, with a wedge lock and an elastic member biasing the wedge block pivotally connected therein, wherein the wedge block has an inclined wedge surface to be locked frictionally with the locking surface of the drill body; the control sleeve is connected with the outer sleeve to drive the wedge block type lock ring to rotate; the poking claw rotates simultaneously with the control sleeve between a first position where the poking claw is out of contact with the wedge block and a second position where the poking claw contacts the wedge block.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile