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:
May. 25, 1982
Filed:
Oct. 14, 1980
Robinson Ord, Jr, Tulsa, OK (US);
Mapco, Inc., Tulsa, OK (US);
Abstract
A method of measuring the flow rate of a fluid through a conduit by means of a sonic flow meter employing the steps of measuring the speed of sound transmission through the fluid from an upstream point in the conduit to an opposed downstream point, measuring the speed of sound transmission through the fluid from the downstream point to the upstream point, subtracting the two measurements to obtain a liquid flow rate indication, adding the two measurements to obtain the fluid sound velocity, measuring the temperature of the fluid in the conduit, determining a measurement of the fluid viscosity from the fluid speed of sound transmission and the temperature, and correcting the determined fluid velocity utilizing the detected fluid viscosity.