Patent · US Active

Pump with cutting impeller and pre-cutter

US8267643B2 · kind B2 · utility

15Cited by

10References

6Claims

0Family size

Assignee

Brinkmann Pumpen K.H. Brinkmann GmbH & Co. KG · DE

Inventors

Peter Wagner · Starnberg, DE
Dirk Wenderott · Castrop-Rauxel, DE

Key dates

Filing date	Jul 1, 2009
Grant date	Sep 18, 2012
Priority date	—
Expiry date	Mar 13, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB02C2018/164
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A pump includes a cutting impeller (38) and a pre-chopper (50) driven by a shaft portion (46) that projects axially from the cutting impeller (38), with the pre-chopper (50) being surrounded by an intake port (22) of the pump, the intake port having, at least on a part of its length, in the vicinity of the pre-chopper, a non-circular internal cross-section.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.