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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.:

US 10967734 B1

PDFFull Text
Date of Patent:
Apr. 06, 2021

Filed:

Jul. 01, 2019

Valve device for fuel tank

Applicant:

Nifco Inc., Yokosuka, JP;

Inventors:

Xiaohui Sui, Yokosuka, JP;

Tsuyoshi Kato, Yokosuka, JP;

Assignee:

NIFCO INC., Yokosuka, JP;

Attorney:

Manabu Kanesaka

Primary Examiner:

Hailey K Do

Int. Cl.
CPC ...
F16K 24/04 (2006.01); F16K 21/18 (2006.01); F16K 31/22 (2006.01); F16K 17/36 (2006.01); B60K 15/035 (2006.01); B67D 7/36 (2010.01); F02M 37/00 (2006.01); B60K 15/03 (2006.01);
U.S. Cl.
CPC ...
B60K 15/03519 (2013.01); B67D 7/365 (2013.01); F02M 37/0023 (2013.01); F16K 21/18 (2013.01); F16K 24/044 (2013.01); F16K 31/22 (2013.01); B60K 2015/03289 (2013.01); B60K 2015/03368 (2013.01); B60K 2015/03566 (2013.01); F16K 17/36 (2013.01); Y10T 137/053 (2015.04); Y10T 137/3099 (2015.04); Y10T 137/6004 (2015.04); Y10T 137/7404 (2015.04); Y10T 137/7426 (2015.04); Y10T 137/7436 (2015.04);
Abstract

In a valve device for a fuel tank, a fuel liquid level of filling-up fuel feed and an allowable fuel amount of additional fuel feed can be easily and appropriately changed by replacing only a part of components forming the valve device. A first valve chamber has a structure of positioning an open end below a support portion of a first float having a passage portion for a fluid. A second valve chamber includes a support portion of a second float having a passage portion for the fluid. The first valve chamber and the second valve chamber are formed by fitting a lower-portion including the support portion and the open end of the first float and the support portion of the second float relative to an upper-portion including a first valve opening and a second valve opening.

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