Self-priming positive displacement constant flow high capacity pump
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United States of America Patent
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Feb 28, 2017
Grant Date -
Apr 20, 2006
app pub date -
Oct 12, 2004
filing date -
Oct 12, 2004
priority date (Note) -
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Abstract
A rotary action, self-priming positive displacement constant flow high capacity fluid pump is described. None of the pump parts touch in the pump chamber to minimize pump wear allowing for extended pump life. Since there are no touching parts in the pump chamber, the pump can be operated dry without the pump liquid being present without damage to the pump. The pump may be operated either clockwise or counter-clockwise without loss of positive displacement or reduction in fluids input or output. Due to the design of the pump, the pump is inherently low-maintenance and is highly resistant to clogging by debris and the like. Fluid pressure relief sections are provided by carving out of the inside portions of the housing structure to which the ends of the shaft are mounted to vary or improved pump performance.
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