Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Scroll or helical type casing with specific exit nozzle
Reexamination Certificate
2008-04-08
2008-04-08
Look, Edward K. (Department: 3745)
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Scroll or helical type casing with specific exit nozzle
C416S001000
Reexamination Certificate
active
07354244
ABSTRACT:
A blower for a water heater having a flue defining a flue axis. The blower includes a housing at least partially defining a first chamber and a second chamber and having an inlet opening into the first chamber and an outlet communicating between the second chamber and atmosphere, the inlet being alignable with the flue, a ramp extending through the second chamber and having a surface, the surface being oriented at an acute angle with respect to the flue axis, and an impeller positioned in the second chamber and being operable to draw exhaust from the flue into the first chamber through the inlet and being operable to direct the exhaust through the second chamber and across the surface of the ramp, the surface of the ramp directing the exhaust through the outlet in a direction substantially parallel to the flue axis.
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Abele Jason Robert
Coloma Anthony Joseph
Field Kevin Mark
Hasbargen Michael Robert
Hughes Dennis R.
AOS Holding Company
Hanan Devin
Look Edward K.
Michael & Best & Friedrich LLP
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