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:
Dec. 11, 2018
Filed:
Oct. 18, 2016
Black & Decker Inc., New Britain, CT (US);
Aland Santamarina, Columbia, MD (US);
Michael P. Peters, Lutherville, MD (US);
Mark E. Brunson, Bel Air, MD (US);
Darren B. Moss, York, PA (US);
David B. Lee, Baltimore, MD (US);
Ruth E. Mitchener Keffer, Baltimore, MD (US);
Denny Jiang, Jiangsu, CN;
Michael Huang, Jiangsu, CN;
BLACK & DECKER INC., New Britain, CT (US);
Abstract
A fastener driving tool includes a shaft with a working region disposed at a first end of the shaft and configured to drive a fastener, a shank portion disposed proximate a second end of the shaft and configured to couple the shaft to a power tool, and a reduced diameter torsion zone disposed between the shank portion and the working region, the torsion zone extending from a first shoulder closer to the working region to a second shoulder closer to the shank portion. A length (L) and a radius (c) of the torsion zone have been optimized so that approximately half of breakages occur in the working region and approximately half of breakages occur in the torsion zone.