Impeller for centrifugal blower
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United States of America Patent
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N/A
Issued Date -
Oct 5, 2006
app pub date -
Apr 5, 2006
filing date -
Apr 5, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
An impeller 10 for a centrifugal blower 3 is of a closed type and comprises a first molded part 18 and a second molded part 20. The first part is formed by integrally molding a side plate 14, vanes 16, and a circular base 26 having a smaller area than a central opening 22 formed in the side plate. The second part acts as a main plate 12, having a boss section 24 formed with a recess section 30 into which the circular base is fitted. The impeller can be formed by joining the first and second parts together to form a single body, by fastening both of the circular base and the boss section to the rotating shaft 8 of a drive source 4 in a state where the circular base is fitted into the recess section.
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