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:
Sep. 16, 2025
Filed:
Jun. 16, 2021
Applicant:
Endress+hauser Flowtec Ag, Reinach, CH;
Inventor:
Rainer Lorenz, Lörrach, DE;
Assignee:
Endress+Hauser Flowtec AG, Reinach, CH;
Primary Examiner:
Int. Cl.
CPC ...
G01F 15/00 (2006.01); G01F 15/14 (2006.01); G01F 15/18 (2006.01);
U.S. Cl.
CPC ...
G01F 15/006 (2013.01); G01F 15/14 (2013.01); G01F 15/18 (2013.01);
Abstract
A measuring tube for a flow measuring means includes an essentially cylindrical measuring tube section that is composed of tantalum on at least the interior surface. At least one insert composed essentially of a noble metal is inserted into one of two end openings such that the interior surface of tantalum is in direct contact with the noble metal. In this way, hydrogen embrittlement of the measuring tube is very easily reduced. Further disclosed is a flow measuring device having a measuring tube of the invention as well as a method for producing such a measuring tube.