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. 25, 2011
Filed:
Feb. 09, 2007
Applicants:
Won Hyouk Jang, Yongin-si, KR;
Hyung Keun Lee, Seoul, KR;
Inventors:
Won Hyouk Jang, Yongin-si, KR;
Hyung Keun Lee, Seoul, KR;
Assignee:
Samsung SDI Co., Ltd., Yongin-si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/04 (2006.01); G01F 23/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
A liquid tank capable of detecting liquid level when the tank is rotated. The liquid tank includes an airtight vessel to store the liquid; and at least two electrodes installed inside the airtight vessel. The distal ends of the electrodes are positioned at a central volume of the airtight vessel. A fuel cell adopting the liquid tank maintains the liquid level in the tank near 50% of the full level even when the fuel cell is rotated.