Rotary kinetic fluid motors or pumps – With means for re-entry of working fluid to blade set – Turbine regenerative pump
Reexamination Certificate
2007-08-17
2011-12-06
Look, Edward (Department: 3745)
Rotary kinetic fluid motors or pumps
With means for re-entry of working fluid to blade set
Turbine regenerative pump
C415S055200
Reexamination Certificate
active
08070417
ABSTRACT:
A disc shaped impeller may comprise an upper face and a lower face. Concavities may be repeatedly arranged along a circumferential direction on the upper face and the lower face. Each concavity may include a front surface, a back surface, an inner surface, an outer surface and a bottom surface. Each front surface may include a front-inner area formed between an inner edge of the front surface and a middle portion of the front surface. Each front-inner area may be formed in a convex shape when viewed as a longitudinal cross-section. The longitudinal cross-section is defined as a cross-section through a longitudinal plane disposed so as to be aligned along the circumferential direction.
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Ikeya Masaki
Murakoshi Yuuichi
Yamauchi Toshihiko
Aisan Kogyo Kabushiki Kaisha
Dennison, Schultz & MacDonald
Look Edward
White Dwayne J
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