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:
Jan. 08, 1980
Filed:
Jul. 17, 1978
Applicant:
Inventor:
David G Nolte, Houston, TX (US);
Assignee:
Texaco Inc., White Plains, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G01F / ;
U.S. Cl.
CPC ...
73299 ;
Abstract
A sensitive J-tube employs an indicating liquid in the U-tube portion for use with an immiscible liquid thereabove. The longer leg of the J-tube has a larger cross-section area portion containing the immiscible liquid when the J-tube has been immersed therein. The arrangement is such that the J-tube will amplify any changes in surface level of the liquid into which it is immersed, by producing a differential between levels of the indicating liquid in the U-tube legs. The principles are applied to a U-tube instrument to act as a manometer for measuring gas pressure differentials.