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:
Jul. 17, 2007
Filed:
Feb. 09, 2005
Applicants:
David C. Campbell, Bel Air, MD (US);
Louis A. Gibbons, Stevensville, MD (US);
Inventors:
David C. Campbell, Bel Air, MD (US);
Louis A. Gibbons, Stevensville, MD (US);
Assignee:
Black & Decker Inc., Newark, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B 31/12 (2006.01); B23B 31/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A drill includes a chuck which has a body member including a bore to receive a tool. Jaw members frictionally engage the tool to retain the tool in the chuck. A member is associated with the jaw members and the body to move the jaw members between clamping and non-clamping position. A centering mechanism extends radially into the body member to center tool bits within the chuck while prohibiting the tool bit from contacting the bore wall.