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:
Aug. 09, 2005
Filed:
May. 16, 2003
Applicants:
Minfeng Xu, Florence, SC (US);
Weijun Shen, Florence, SC (US);
Stephen R. Elgin, Florence, SC (US);
Inventors:
Assignee:
General Electric Company, Schenectady, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01F023/00 ;
U.S. Cl.
CPC ...
Abstract
The present invention provides a method and apparatus for measuring the level of a liquid cryogen. The invention provides for use of a current source (), a length, or multiple lengths, of superconducting filament () situated within a cryostat () containing a cryogenic fluid () and a voltmeter () for measuring the voltage drop across the filament (). The invention further provides a method for using said apparatus.