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:
May. 18, 2010
Filed:
Jan. 09, 2007
Applicants:
Shigeru Takahashi, Hitachinaka, JP;
Naoki Tadokoro, Hitachinaka, JP;
Takuma Saito, Hitachinaka, JP;
Inventors:
Assignee:
Hitachi Koki Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 7/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
A power toolincludes a cylindrical-shaped yoke, magnetsprovided in the interior of the yoke, an armaturedisposed rotatably in the interior of the yoke, a cooling fanrotatably secured to the armature, a fan guidedisposed on the periphery of the cooling fan, and a cylindrical-shaped housingfor storing the yoketherein. The fan guideis contacted with the axial-direction one end face of the yoke, and the fan guideis engaged with the yokein the rotation direction thereof.