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. 14, 2003
Filed:
Jun. 11, 2001
Applicant:
Inventors:
Dietfried Burczyk, Teltow, DE;
Wolfgang Dannhauer, Teltow, DE;
Frank Löffler, Potsdam, DE;
Ralf Nürnberger, Potsdam, DE;
Friedrich Schwabe, Kleinmachnow, DE;
Assignee:
Endress + Hauser GmbH + Co., Maulburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01L 1/302 ; G01L 1/500 ;
U.S. Cl.
CPC ...
G01L 1/302 ; G01L 1/500 ;
Abstract
A differential pressure pickup with a small hysteresis volume which has a sensor element, two pressure measuring chambers adjacent thereto, two pressure receiving chambers closed off by separating diaphragms and two overload chambers separated from each other by an overload diaphragm, in which pickup the overload diaphragm has a closed outer edge and a closed inner edge and is firmly restrained along its outer edge and its inner edge.