UNIAXIAL ECCENTRIC SCREW PUMP
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United States of America Patent
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Issued Date -
Nov 24, 2016
app pub date -
Dec 4, 2014
filing date -
Jan 28, 2014
priority date (Note) -
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Abstract
A uniaxial eccentric screw pump includes: a casing 1; a stator 2 having one end portion thereof connected to the casing 1 and having an inner peripheral surface formed into a female threaded shape; a rotor 3 configured to be insertable into the stator 2 and formed of a shaft body having a male threaded shape; and an end stud 4 connected to the other end portion of the stator 2. The stator 2 is formed of: a stator body 10; and an outer sleeve 9 detachably disposed on an outer peripheral portion of the stator body 10. A closure structure which at least prevents intrusion of a foreign material from the outside is provided at a junction between the stator body 10 and the casing 1 and at a junction between the stator body 10 and the end stud 4.
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