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. 30, 2012
Filed:
Jan. 22, 2010
Toru Matsuzaki, Sakura, JP;
Takatsugu Hirose, Sagamihara, JP;
Motoharu Takai, Fujisawa, JP;
Itsuo Honda, Kamakura, JP;
Toru Matsuzaki, Sakura, JP;
Takatsugu Hirose, Sagamihara, JP;
Motoharu Takai, Fujisawa, JP;
Itsuo Honda, Kamakura, JP;
Nifco, Inc., Yokohama-shi, Kanagawa, JP;
Yachiyo Industry Co., Ltd., Sakura-shi, Tochigi, JP;
Abstract
In a vent control valve for a fuel tank, a housing receiving a float assembly therein is provided with a communication hole passed across a wall of the housing, and an opening of the communication hole facing an interior of the housing is directly exposed to an interior of the housing when the float assembly is in a low position and overlaps with a peripheral wall of the float assembly when the float assembly is in a high position. By suitably selecting the size of the communication hole and/or the number thereof, a desired delay in the dropping of the liquid fuel level in the housing following the filling up of the fuel tank can be achieved. Thereby, overfilling of the fuel tank can be avoided.