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. 14, 2001
Filed:
Mar. 15, 2000
Applicant:
Inventors:
Darwin Edward Kiel, New Westminster, CA;
Ian David Williamson, Calgary, CA;
Jason L. Szabo, Victoria, CA;
Assignee:
Nova Gas Transmission Ltd., Calgary, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01P 3/36 ; G01F 1/00 ;
U.S. Cl.
CPC ...
G01P 3/36 ; G01F 1/00 ;
Abstract
The present invention provides an optical device for the measurement of flow rates of fluid through a pipe. The device broadly comprises a narrow frequency light source, an optical delivery system, a collector for light scattered from particles in the fluid, and a photo detector. In a preferred embodiment, the optical delivery system and the collector are contained within the pipe.