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:
Aug. 12, 2014
Filed:
Mar. 07, 2013
Applicant:
Hitachi Koki Co., Ltd., Tokyo, JP;
Inventor:
Naoto Ichihashi, Hitachinaka, JP;
Assignee:
Hitachi Koki Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01P 1/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
An engine for rotating a saw chain serving as a rotating tool includes an engine main body including a crank case and cylinder. A cooling fan for generating forced cooling air is attached to a protruding end of a crank shaft. An engine cover for covering a top of the cylinder is provided in the engine, and an air guiding rib extending in a direction of crossing the cooling air is provided in an inner circumferential surface of the engine cover. In the engine cover, opening portions for exhausting the cooling air outside are provided.