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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.:

US 5440937 B1

PDFFull Text
Date of Patent:
Aug. 15, 1995

Filed:

Apr. 30, 1993

Process and apparatus for ultrasonic measurement of volumeric flow

Applicant:
Inventors:

Lawrence C Lynnworth, Waltham, MA (US);

James E Bradshaw, Tyngsboro, MA (US);

Christopher C Doyle, Weston, MA (US);

Steven A Lynnworth, Natick, MA (US);

James E Matson, Needham, MA (US);

Jeffrey Tilden, Norton, MA (US);

Assignee:

Panametrics, Inc., Waltham, MA (US);

Attorney:

Lahive & Cockfield

Primary Examiner:

Richard E Chilcot, Jr

Assistant Examiner:

Elizabeth L Dougherty

Int. Cl.
CPC ...
G01F / ;
U.S. Cl.
CPC ...
7386129 ; 7386125 ; 7386127 ;
Abstract

An apparatus and method for measuring gas flow velocity through a high stack employs ultrasonic transducers. The transducers are placed on opposite ends of a diameter several hundred feet up, with a small vertical separation L between the transducers. Apparatus for measuring acoustic velocity in the stack gas over short path lengths is also included.

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Lynnworth, Lawrence. (1995). Process and apparatus for ultrasonic measurement of volumeric flow (U.S. Patent No. 5440937). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5440937

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