Fluid reaction surfaces (i.e. – impellers) – Perimetric blading extending axially between annular members
Reexamination Certificate
2004-12-13
2010-06-29
Edgar, Richard (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Perimetric blading extending axially between annular members
C416S187000, C416S22300B, C415S206000
Reexamination Certificate
active
07744350
ABSTRACT:
A multi-blade fan includes a spirally-shaped housing which has a bell-mouth orifice on one side, a sucking inlet and an exhausting outlet, an impeller which is placed in a housing and has a plurality of blades supported by a main plate and a lateral plate at both the axial ends, and a motor for driving the impeller. A cross section, cut along vertically with respect to a rotary shaft of the impeller, of each one of the blades has a given shape which allows a main air stream to flow along a back face of each one of blades.
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International Search Report for application No. PCT/JP2004/018551 dated Mar. 29, 2005.
Ogino Kazuo
Omori Kazuya
Edgar Richard
Panasonic Corporation
RatnerPrestia
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