IMPELLER MOUNTING SYSTEM AND METHOD
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United States of America Patent
Stats
-
Dec 16, 2003
Grant Date -
Jan 1, 2004
app pub date -
Jun 27, 2002
filing date -
Jun 27, 2002
priority date (Note) -
Granted
status (Latency Note)
Importance
Abstract
An article, such as an impeller, is mounted for torque transmission by a shaft by positioning the article in contact with a threaded collar engaging tapered threads on the shaft and applying an axial force to the article to move and tighten the threaded collar on the tapered threads. The axial force is applied to the article by a clamping collar which contacts the article only in an area spaced from a central bore of the article in order to deflect a portion of the article defining the central bore radially inward toward the shaft. In one embodiment, two impellers are positioned back-to-back, with one impeller receiving an axial force spaced radially from a central bore of the impeller by an annular formation on the other impeller.
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