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:
Apr. 05, 2011
Filed:
Mar. 08, 2007
Applicant:
Yasuki Ohmori, Hitachinaka, JP;
Inventor:
Yasuki Ohmori, Hitachinaka, JP;
Assignee:
Hitachi Koki Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B25C 1/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A combustion type power tool capable of avoiding wasteful injection of combustible gas from a gas canister even if an unintentional operation of the push lever takes place, and capable of avoiding wasteful electric power consumption even if a battery used as power supply remains set in the tool. While the tool is not being used, a stop unit is set at a stop position, preventing a gas canister from injecting gas, and while the tool is being used, the stop unit is set at a release position, allowing the gas canister to inject gas as a result of movement of a combustion chamber frame.