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:
Nov. 15, 2011
Filed:
Sep. 17, 2009
Michael David Maahs, Dallas, TX (US);
Michael David Maahs, Dallas, TX (US);
Other;
Abstract
A fluid flow device having a vortex generator in two or more channels, each channel having a section to scale the flow velocity to a desirable range of Reynolds number, and vortex shedding and/or vortex passing frequency. Said flow device may be used as a flow meter by measuring the vortex shedding/passing frequency from each vortex generator. Further improvement is had by selecting the highest usable frequency, with its corresponding scaling factor, as the most-precise and fastest-response measurement output of the flow-measuring device. Still further improvement is obtained by cross-checking all usable frequencies against each other to detect failure of one or more vortex shedding/passing sensors.