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. 14, 2012
Filed:
Mar. 28, 2008
Applicants:
Hiroshi Tanaka, Tokyo, JP;
Hajime Takemura, Tokyo, JP;
Inventors:
Hiroshi Tanaka, Tokyo, JP;
Hajime Takemura, Tokyo, JP;
Assignee:
Max Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25C 1/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
In a gas internal combustion type nailing machine, a tubular-shaped sleeve is fixed between a movable housing and a fan. Between the movable housing and sleeve, an annular space portion is formed. In such portions of the sleeve as existing respectively upwardly and downwardly of the fan, there are formed communication holes and in communication with the annular space portion. Mixed gas blown out by the fan flows through the lower communication hole and returns from the annular space portion to the combustion chamber through the upper communication hole.