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:
Oct. 27, 1998
Filed:
Oct. 24, 1996
Applicant:
Inventors:
Mark V Weaver, Clemson, SC (US);
Mark S Hart, Central, SC (US);
Assignee:
Power Tool Holders Incorporated, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ;
U.S. Cl.
CPC ...
279 231 ; 279 462 ; 279 54 ; 279140 ; 279904 ; 403229 ;
Abstract
A quick release chuck device includes a body member and a device for attaching the body member to a drive spindle. A longitudinal bore or recess is defined in the body member and a resilient coiled member gripping device is disposed in the longitudinal recess. The coiled member defines an inner diameter bore for receipt of a tool shank inserted therein. A device is provided for variably coiling the coiled member gripping device within the longitudinal recess thereby causing the inner diameter bore to constrict and grip upon a tool shank inserted therein.