US 12,228,138 B2
Pump comprising an impeller body provided as an oblique cone
Jacob Arnold, Enschede (NL); and Raymond Johan Meijnen, Winterswijk (NL)
Assigned to Pentair Flow Technologies, LLC, Delavan, WI (US)
Filed by PENTAIR FLOW TECHNOLOGIES, LLC, Delavan, WI (US)
Filed on Jan. 9, 2024, as Appl. No. 18/408,050.
Application 18/408,050 is a continuation of application No. 17/309,763, granted, now 11,867,192, previously published as PCT/US2019/067570, filed on Dec. 19, 2019.
Claims priority of provisional application 62/781,825, filed on Dec. 19, 2018.
Prior Publication US 2024/0141915 A1, May 2, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. F04D 29/22 (2006.01); F04D 1/00 (2006.01)
CPC F04D 29/2216 (2013.01) [F04D 1/00 (2013.01); F05D 2250/232 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A centrifugal pump for transporting fish, the centrifugal pump having an axially directed inlet, a radially directed outlet, and an impeller, the impeller comprising:
a base that is concentric relative to a rotational axis of the impeller; and
an impeller body formed as at least one oblique cone having an eccentric apex and a smooth outer surface, the at least one oblique cone extending from the base.