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. 09, 2016
Filed:
Jan. 20, 2012
Applicants:
Masaki Sugiyama, Numazu, JP;
Tetsuya Hasegawa, Numazu, JP;
Inventors:
Masaki Sugiyama, Numazu, JP;
Tetsuya Hasegawa, Numazu, JP;
Assignee:
MAKITA CORPORATION, Aichi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 37/04 (2006.01); F02M 5/12 (2006.01); F02M 37/14 (2006.01); F02M 37/12 (2006.01);
U.S. Cl.
CPC ...
F02M 37/046 (2013.01); F02M 5/125 (2013.01); F02M 37/12 (2013.01); F02M 37/14 (2013.01);
Abstract
An engine includes a crank chamber in which pressure fluctuation occurs and a carburetor including a diaphragm fuel pump. The diaphragm fuel pump includes a pump chamber configured to suck in and eject fuel and a diaphragm chamber to which a pressure that drives the pump chamber is supplied. The diaphragm chamber and the crank chamber communicate with one another in a state in which a negative pressure is created in the crank chamber.