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. 26, 2003
Filed:
May. 09, 2000
Applicant:
Inventors:
Shrinivas G. Joshi, Brookfield, WI (US);
Boris D. Zaitsev, Saratov, RU;
Assignee:
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01F 1/66 ;
U.S. Cl.
CPC ...
G01F 1/66 ;
Abstract
A low profile transducer ( ) is provided for use in flow meter for pipes of small diameter. The transducer ( ) has a transducer ( ) or other form of transducer which transmits and receives electrical signals of three volts and 1 MHz and converts between these electrical signals and acoustic waves. In one embodiment, the transducer ( ) produces surface acoustic waves (SAW), while in another embodiment the transducer ( ) produces plate waves known as Lamb waves. These waves are converted to bulk acoustic waves (BAW) transmitted between the pair of transducers ( ).