Circulation pump
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United States of America Patent
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Apr 18, 2017
Issued Date -
N/A
app pub date -
Jun 13, 2014
filing date -
Jun 13, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
An electric pump has a pump casing, a sealing plate, an impeller and a motor for driving the impeller. The pump casing has a main body. A recess is formed in the main body and with the sealing plate defines a pump chamber. A suction port is connected to the pump chamber by a suction channel and a suction passage formed in the main body. A discharge port is connected to the pump chamber by a discharge channel. The suction passage extends axially from the recess. The recess, suction passage, suction channel and discharge channel are all shaped in a manner allowing the pump casing can be molded as a monolithic structure in a single injection molding process.
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