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:
Feb. 25, 2014
Filed:
Mar. 02, 2007
Applicants:
Hung T. Du, Towson, MD (US);
Josh West, Towson, MD (US);
Inventors:
Hung T. Du, Towson, MD (US);
Josh West, Towson, MD (US);
Assignee:
Black & Decker Inc., Newark, DE (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B23B 45/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A cordless power tool () has a transmission () having multiple speed ranges In the light torque range, the speed of a motor () of the cordless power tool is held constant to hold an output speed of the transmission () constant until motor power reaches a predetermined percentage of the maximum watts out of the motor.