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. 29, 2017
Filed:
Jan. 22, 2014
Applicant:
Avl List Gmbh, Graz, AT;
Inventor:
Otfried Derschmidt, Graz, AT;
Assignee:
AVL List GmbH, Graz, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F 3/10 (2006.01); G01F 15/00 (2006.01); G01F 15/02 (2006.01);
U.S. Cl.
CPC ...
G01F 15/005 (2013.01); G01F 3/10 (2013.01); G01F 15/026 (2013.01);
Abstract
In a flow meter with a displacement meter () a parallel-connected pressure difference sensor () has a bypass channel () which frees a connection between the inflow side and the outflow side () when a piston () butts against a maximum stroke stop (). In the bypass channel () is a check valve () which prevents the backflow from the outflow side to the inflow side () and thus enables a return of the piston () purely due to pressure.