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:
Mar. 09, 2010
Filed:
Oct. 31, 2007
Timothy J. Bailey, Longmeadow, MA (US);
Mark Fernald, Enfield, CT (US);
Changjiu Dang, Wallingford, CT (US);
Christian O'keefe, Durham, CT (US);
Timothy J. Bailey, Longmeadow, MA (US);
Mark Fernald, Enfield, CT (US);
Changjiu Dang, Wallingford, CT (US);
Christian O'Keefe, Durham, CT (US);
Expro Meters, Inc., Wallingford, CT (US);
Abstract
A method for sensing flow within a pipe having an internal passage disposed between a first wall portion and a second wall portion is provided, comprising the steps of: 1) providing a flow meter having at least one ultrasonic sensor unit that includes an ultrasonic transmitter attached to the first wall portion and an ultrasonic receiver attached to the second wall portion and aligned to receive ultrasonic signals transmitted from the transmitter; 2) selectively operating the ultrasonic transmitter to transmit a beam of ultrasonic signal, which beam has a focal point such that within the pipe, the beam is either colliminated, divergent or convergent; and 3) receiving the ultrasonic signals within the beam using the ultrasonic receiver. An apparatus operable to perform the aforesaid method is also provided.