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:
Nov. 12, 2019
Filed:
Dec. 14, 2016
Applicant:
Black & Decker Inc., New Britain, CT (US);
Inventor:
James R. Parks, White Hall, MD (US);
Assignee:
BLACK & DECKER INC., New Britain, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25F 5/00 (2006.01); B25B 21/00 (2006.01); B25B 23/14 (2006.01);
U.S. Cl.
CPC ...
B25F 5/001 (2013.01); B25B 21/00 (2013.01); B25B 23/141 (2013.01);
Abstract
A hand-held power tool has a torque-limiting unit with which a maximum torque transferred from a motor output shaft to a tool driver is adjustable by an operator. The torque-limiting unit has a spring system with spring elements having substantially similar characteristics (such as length, compression forces, etc.) and yet generating different spring forces.