SPIRAL BLOWER
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United States of America Patent
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N/A
Issued Date -
Sep 25, 2008
app pub date -
Mar 19, 2007
filing date -
Mar 19, 2007
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A dryer blower for carwash facilities comprising a volute housing for an impeller having an axial intake and a tangential air outlet. The volute housing is characterized by a spiral channel of increasing cross-sectional area as a result of an increasing width and substantially constant radial dimension. The spiral housing terminates in a long, narrow output to create an air knife which effectively strips water from the surfaces of a just washed vehicle. The housing can be asymmetric or symmetric and housings can be arranged in side by side tandem to create additional length in the air outlet.
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