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. 20, 1985
Filed:
Mar. 31, 1983
Applicant:
Inventors:
Jean-Louis Prost, Geneva, CH;
Daniel Gross, Carouge, CH;
Assignee:
Battelle Memorial Institute, Geneva, CH;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01F / ; G01F / ;
U.S. Cl.
CPC ...
7329 / ; 73149 ; 7329 / ; 367908 ;
Abstract
A container of known volume, such as a fuel tank of an automotive vehicle, is provided with a loudspeaker-like membrane which can be energized to produce a pressure pulse in the gas space above the liquid in the container. The oscillations of this gas space are then converted into a signal via the diaphragm and the period of the signal is determined to provide the volume of the gas space. This is subtracted from the gas volume of the container automatically to indicate the liquid volume and the liquid volume can be displayed on the dashboard of the vehicle.