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:
Jul. 03, 2018
Filed:
Mar. 07, 2016
Applicant:
Aisan Kogyo Kabushiki Kaisha, Obu-shi, Aichi-ken, JP;
Inventors:
Tetsuya Ishikawa, Obu, JP;
Norihisa Yamamoto, Aichi-ken, JP;
Assignee:
AISAN KOGYO KABUSHIKI KAISHA, Obu-Shi, Aichi-Ken, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 33/02 (2006.01); F02M 25/08 (2006.01);
U.S. Cl.
CPC ...
F02M 25/0854 (2013.01); F02M 25/0836 (2013.01); F02M 25/0872 (2013.01);
Abstract
A fuel vapor processing apparatus may include a diaphragm valve disposed in a vapor path communicating between a fuel tank and a canister. The diaphragm valve may include a valve chamber, a backpressure chamber, a diaphragm partitioning the valve chamber and the backpressure chamber from each other; and a valve member attached to the diaphragm. The backpressure chamber is not directly opened to an outside of the diaphragm valve. A control valve device may control a pressure within the backpressure chamber of the diaphragm valve.