F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
103/121
F04D 13/14 (2006.01) F04D 29/22 (2006.01)
Patent
CA 1130651
Leonard J. Sieghartner For: CENTRIFUGAL IMPELLERS ABSTRACT A centrifugal impeller for use in a combination centrifugal-turbine pump capable of pumping liquids at or near the boiling point thereof with suction heads not greater than about one foot and wherein the entrance portion of the centrifugal impeller includes a plurality of vane inserts removably mounted therein, with adjacent ones of the inserts having vanes that are aligned with each other to define liquid- feeding spiral vanes that extend through the plurality of inserts.
326688
Osler Hoskin & Harcourt Llp
Roth (roy E.) Company
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