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. 13, 1998
Filed:
Jun. 20, 1996
Erik G Han, Anderson, SC (US);
Roger J Kanaan, Easley, SC (US);
Power Tool Holders Incorporated, Wilmington, DE (US);
Abstract
The chuck includes a body with an axial recess and a transverse opening intersecting the recess. First and second cam members are disposed at least partially within the transverse opening and have first and second passages, respectively, which squeeze a cylindrical, slitted inner sleeve that holds the tool shank during rotation of the chuck. The inner sleeve is spring-biased for axial movement relative to the body and has a tapered upper end that is compressed when engaging a tapered retainer sleeve and thereby retains the tool shank during nonrotation of the chuck. An outer sleeve including comolded inner and outer shells, is configured and disposed to move axially about the body. A remote actuating member effects axial movement of the outer sleeve and inner sleeves to permit insertion or withdrawal of the tool shank from the chuck. An engagement mechanism connects the chuck to a drive spindle and also has a mounting mechanism for facilitating automated mounting of the chuck to a drive spindle.