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. 20, 1991
Filed:
Jun. 20, 1989
Applicant:
Inventors:
Assignee:
Testoterm Messtechnik GmbH & Co., Lenzkirch, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F / ;
U.S. Cl.
CPC ...
7320422 ; 7320425 ;
Abstract
An electical current flow sensor, where a spherical surface thereof is subjected to an in-flowing fluid in order to the speed of the fluid. The spherical surface is formed by a body made of a good thermally conductive material. An electrical resistor is disposed in a cavity in the interior of the body of good thermally conductive material. The electrical resistor is placed in a good heat exchange with the wall of the cavity. The electrical resistor is adjusted to a preset temperature by electrical current feed, whereby increased fed-in electrical current is measured and serves as a measure for the current flow speed.