Fluid reaction surfaces (i.e. – impellers) – Perimetric blading extending axially between annular members
Reexamination Certificate
2008-02-11
2011-11-15
Look, Edward (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Perimetric blading extending axially between annular members
C415S053100
Reexamination Certificate
active
08057185
ABSTRACT:
A forward swept centrifugal fan wheel comprising a first endring (10), a second endring (11), a plurality of blades (12) connected between the first endring and the second endring, each blade having a substantially continuous arcuate form extending along an axis parallel to an axis of rotation (A-A), and each blade having a substantially continuous arcuate cross-section taken with respect to a plane which extends normally from the axis of rotation (A-A).
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Dougherty, Esq. Thomas A.
Dunlap, Esq. Paul N.
Lau Industries
Look Edward
McDowell Liam
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