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. 19, 2001
Filed:
Dec. 17, 1999
Guimo Yang, Wendeng, CN;
Shengzhi Yang, Wendeng, CN;
Mingquan Cai, Wendeng, CN;
Lianhai Long, Wendeng, CN;
Kangiun Sun, Wendeng, CN;
Shandong Weida Machine Tool Tools Group Corporation, Shandong, CN;
Abstract
A manually tightened chuck has a separated nut in (,) fixed in a recess at a front sleeve (,) with close fit, and jaws (,) engaged by respective thread part of each radial out surface with the nut, which enables to reciprocate synchronously within corresponding bores at a chuck body (,) by rotating the front sleeve, a rear sleeve (,) fixed with keys (,) around the periphery of rear part of the chuck body free from turning each other, a thrust ball bearing (,) and a spring (,) arranged between the front and rear sleeves act for separating the relative movement of the sleeves and applying a final gripping force after the jaws touch a drill bit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile