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:
Oct. 10, 1989
Filed:
Feb. 01, 1988
Hidefumi Sonoda, Aichi, JP;
Eiji Mori, Aichi, JP;
Mitsuo Kawase, Aichi, JP;
Kazuhiro Yoneshige, Aichi, JP;
Akira Takahashi, Saitama, JP;
Hirokazu Komiya, Tokyo, JP;
Akira Tanaka, Saitama, JP;
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Aisan Industry Co., Ltd., Aichi, JP;
Jeco Co.,Ltd., Saitama, JP;
Abstract
A device for preventing an outflow of a fuel vapor from a fuel tank comprising a breather pipe which connects the upper interior of the fuel tank to a charcoal canister. A float-valve assembly is mounted on the upper wall of the fuel tank. This assembly comprises a breather passage connected to the charcoal canister via the breather pipe, a normally closed solenoid valve arranged in the breather passage, and a float normally allowing the breather passage to be open to the interior of the fuel tank. When the replenishment of the fuel tank is carried out, the solenoid valve is opened to feed fuel vapor in the fuel tank into the charcoal canister.