Impeller Assembly
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United States of America Patent
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Issued Date -
Jul 28, 2011
app pub date -
Jan 25, 2011
filing date -
Jan 25, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An impeller assembly including a rim plate defining a plurality of blades and the backplate defining a blade interlock structure for aligning and coupling the plates together. The rim plate defines a plurality of fluid-engaging blades. The interlock structure includes a plurality of tine-shaped interlocks extending from the backplate. The interlock structure also includes a plurality of channel sections engaging the blades. Each blade of the impeller may engage the interlock structure in a saddle manner. The backplate is defined by areas of reduced thickness allowing outer portions of the backplate to flex (rotate) toward further contact with the rim plate.
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