Progressive cavity pump with meltable stator
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United States of America Patent
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Apr 24, 2001
Grant Date -
N/A
app pub date -
Nov 3, 1999
filing date -
Nov 3, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention comprises a progressive cavity pump for pumping a flowable explosive composition or other heat-sensitive material comprising an inlet and an outlet; a stator that is meltable at or above a selected maximum pump operation temperature; a rotor, and a drive shaft connecting the rotor to a power source; wherein the stator will melt above the selected temperature to prevent the generation of temperatures within the pump high enough to create a hazard. The invention also relates to a method of safely pumping a flowable explosive composition or other heat-sensitive material comprising the use of a progressive cavity pump having a stator that is meltable above a selected maximum pump operation temperature for the similar result.
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