Sealing rings for abrasive slurry pumps
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United States of America Patent
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-
Apr 7, 2009
Grant Date -
Oct 25, 2007
app pub date -
Nov 8, 2006
filing date -
Nov 8, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
There are a number of applications today where the pumping of abrasive slurries is necessary. The pumping mechanisms, though, can be complex, employing multiple transfer cylinders and movable pipes. These designs have their problems, specifically wear between poorly sealing surfaces. To reduce this problem, seals are provided that have multiple wear surfaces which include harder tiles secured over a softer core to benefit from the relative hardness or flexibility of each of the respective materials.
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