Wiping element for impeller leading edges of wastewater pumps

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 12044252
APP PUB NO 20220290695A1
SERIAL NO

17635236

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A wastewater pump for conveying solids-laden wastewater includes a spiral housing with an inlet opening, an impeller with at least one vane having a leading edge running from the impeller hub in a backwardly curved manner, and at least one finger for wiping off contaminants from the leading edge. The at least one finger is arranged on the inlet inner wall and extends in the direction of the impeller rotational axis. At least one groove is present in a suction-side inner wall of the housing to receive and convey material that is removed by the at least one finger from the leading edge to. The leading edge of the impeller and the surface of the at least one finger which faces toward the leading edge are at an angle of 5° to 75° with respect to the rotational axis.

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Patent Owner(s)

Patent OwnerAddress
KSB SE & CO KGAA67227 FRANKENTHAL

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Jaeger, Christoph Frankenthal, DE 18 78
Kaminski, Mateusz Loos, FR 4 15
Mueller, Enrico Frankenthal, DE 3 3
Petit, Nicolas Hazebrouc, FR 27 480

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