(under the class definition) Apparatus comprising a runner* of annular form, having a blade* on the inner periphery of the annulus and extending inwardly radially.
(1) Note. Included herein are arrangements wherein the runner* surrounds the casing*.
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88, for a pump* runner* having a rotating inlet end immersed in the fluid to be pumped and which may comprise a rotating annulus with inwardly radially extending blade*.
89, for a centrifugal bowl pump comprising a rotating runner* bowl like form with inwardly radially extending blade*.
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416, Fluid Reaction Surfaces (i.e., Impellers), 195, for a runner member comprising a peripheral rim connecting working members.
