Heat exchange – With impeller or conveyor moving exchange material – Mechanical gas pump
Reexamination Certificate
2008-03-25
2008-03-25
Duong, Tho (Department: 3744)
Heat exchange
With impeller or conveyor moving exchange material
Mechanical gas pump
C165S080300
Reexamination Certificate
active
10978228
ABSTRACT:
An improved centrifugal impeller having between 20 and 26 rearwardly curved blades blades, a ratio of blade annulus width to wheel radius between 0.31 and 0.37, and an inlet blade angle in the range 32° to 36° and a discharge blade angle in the range 36° to 40°.
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Duong Tho
Haugen Law Firm PLLP
The Bergquist Torrington Company
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