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Cordless power tool system with improved power output
 
   
Document Number
US Patent 7497275
Issued Date
March 3, 2009
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Abstract
A cordless power tool system for improved power output includes a plurality of hand-held cordless power tools, where each power tool includes a tool housing, motor assembly, transmission/gear assembly and removable battery pack. The battery pack provides a nominal output voltage of approximately 25 volts or greater to a DC motor of the motor assembly. Each of the hand-held cordless power tools of the system has a power output to weight ratio of 70 watts per pound (W/lb) or greater.
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Number of Claims:
24
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Owner
Black & Decker Inc. (Newark, DE)
Published
March 3, 2009
Application Number
11/702,208
Filed
February 5, 2007
US Classification
173/217   173/171
Int'l Classification
B25D   17/04   (20060101)  
Examiner
Attorney/Law Firm
Parent Case
PRIORITY STATEMENT This application is a continuation-in-part of and claims domestic priority benefits under 35 U.S.C. .sctn.120 of commonly assigned U.S. patent application Ser. No. 11/266,242 to Daniele C. Brotto, filed Nov. 4, 2005, now issued as U.S. Pat. No. 7,273,159, the entire contents of which is hereby incorporated by reference herein.
USPTO Field of Search
173/217   173/50   173/171   227/156  
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