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:
Oct. 26, 1999
Filed:
Nov. 14, 1996
Wijbren Jouwsma, Lochem, NL;
Frederik Van Der Graaf, Zuidland, NL;
Berkin B.V., AK Ruurlo, NL;
Abstract
Method and device for measuring flows of fluids, such as liquids and gases, flowing through a tube (16). The tube is heat-conducting and is heated at a certain location (18), with the heat on the one hand moving by way of the tube wall (17) in a direction contrary to the fluid flow (15) and on the other hand flowing off into a heat-conducting body (20) which preferably extends substantially parallel to the tube. The temperature difference between the tube wall (17) and the conducting body (20) is measured, e.g., by a thermopile (19) and is a measure of the flow gone past. The device preferably includes a thermopile (19) for carrying out the measurement.