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. 03, 2012
Filed:
Oct. 02, 2009
Applicants:
Hitoshi Suzuki, Anjo, JP;
Tadahiko Kobayakawa, Anjo, JP;
Tomoo Muramatsu, Anjo, JP;
Inventors:
Assignee:
Makita Corporation, Anjo-shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 45/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
An electric power tool includes a tool body and a battery pack. A terminal voltage setting unit of the tool body sets a voltage of a body side terminal to a first voltage when a command to drive a drive portion of the tool body is issued by a switch of the tool body. A voltage changing unit of the battery pack changes a voltage of a battery side terminal from the first voltage to a second voltage when supply of electric power from the battery pack to the drive portion is permitted.