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.

Date of Patent:
Jul. 09, 2013

Filed:

May. 23, 2008
Applicants:

Jusuke Shimura, Kanagawa, JP;

Kazuaki Fukushima, Kanagawa, JP;

Inventors:

Jusuke Shimura, Kanagawa, JP;

Kazuaki Fukushima, Kanagawa, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/00 (2006.01); H01M 8/04 (2006.01); B67D 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A liquid tank and a tubular structure for liquid tank capable of suctioning an internal liquid to the last drop even when the tank is tilted to any angle are provided. The tubular structurehas a duct lineextending from a specific positionA in the tank bodyin a direction toward apexes, sides, or faces of the tank body. Ends of the duct lineare contacted with the apexes, the sides, or the faces of the tank body, and have a liquid inletB. Since the inletB is limited to the ends of the duct line, flow of the liquid in the tank bodyhas a certain directivity that the liquid enters through only the inletB into the duct line, is transported to the specific positionA, and is suctioned outside. In the tubular structure, an inner structurehaving voids thorough which the liquid passes such as a porous body is provided. The voids have an average pore diameter with which the liquid is able to be suctioned by capillary force from the inletB to the specific positionA, and thereby increase of flow path resistance is suppressed.


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