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:
Feb. 14, 2012
Filed:
May. 03, 2007
Applicants:
Finn Beldring, Virum, DK;
Christian Rasmussen, Tjele, DK;
Inventors:
Finn Beldring, Virum, DK;
Christian Rasmussen, Tjele, DK;
Assignee:
Grundfos Management a/s, Bjerringbro, DK;
Primary Examiner:
Int. Cl.
CPC ...
B01D 33/21 (2006.01); B01D 29/41 (2006.01); B01D 35/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
A filter device includes a housing () having at least two rotation bodies (,) which are arranged therein and are driven by a shaft (). The rotation bodies () are designed and arranged for producing a centrifugal pumping effect. A guidance device () is provided between the rotation bodies (), which connects the pressure side () of a first rotation body () to the suction side () of a rotation body () arranged therebehind in the flow direction (). The intermediate spaces between the rotation bodies are provided with a filter arrangement.