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.

Date of Patent:
Oct. 12, 2010

Filed:

Feb. 16, 2006
Applicant:

Peter Wagner, Werdohl, DE;

Inventor:

Peter Wagner, Werdohl, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/70 (2006.01);
U.S. Cl.
CPC ...
Abstract

Pump having a cutting impeller (), counter knives () associated therewith, and a pre-chopper () which is driven by a shaft portion () that projects axially from the cutting impeller (), characterised in that the counter knives () carry a cutting edge () that extends in longitudinal direction of the shaft portion ().


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