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:
Jun. 02, 2020
Filed:
Dec. 28, 2016
Applicant:
Grundfos Holding A/s, Bjerringbro, DK;
Inventors:
Dominik Dominiak, Lodz, PL;
Rikke Eriksen Gissel, Aalborg, DK;
Jacob Appelt Vibe Svendsen, Silkeborg, DK;
Xing Zheng, Xi'an, CN;
Jan Carøe Aarestrup, Bjerringbro, DK;
Assignee:
GRUNDFOS HOLDING A/S, Bjerringbro, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/00 (2006.01); C02F 3/00 (2006.01); B01D 37/04 (2006.01); B01D 65/02 (2006.01); B01D 61/16 (2006.01); B01D 29/66 (2006.01); B01D 37/03 (2006.01); A61M 1/16 (2006.01); B01D 17/02 (2006.01);
U.S. Cl.
CPC ...
B01D 37/043 (2013.01); B01D 29/66 (2013.01); B01D 37/03 (2013.01); B01D 61/16 (2013.01); B01D 65/02 (2013.01); B01D 2311/04 (2013.01); B01D 2311/2642 (2013.01); B01D 2321/04 (2013.01); B01D 2321/20 (2013.01);
Abstract
a filtering method, with which a fluid to be filtered is led through a filter (), the filter () is back-flushed at regular time intervals and a pre-treatment agent is added to the fluid at the entry side of the filter. A process variable which describes the efficiency of the filtration is continuously computed during the filtration, and a metering quantity of the pre-treatment agent is reset on the basis of the values for the process variable or a characteristic values derived from this.