Pumping arrangement
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United States of America Patent
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-
Dec 23, 2008
Grant Date -
Jan 1, 2004
app pub date -
Jul 24, 2002
filing date -
Jul 31, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pumping arrangement for a paint circulation system comprising a reciprocating pump (13), and characterized by an alternating current induction motor (15), a rotary-to-linear motion converter (16) coupling the output of the induction motor (15) to a drive input of the pump (13), an alternating current frequency inverter (24a) controlling said induction motor, switch means (26) for reversing rotation of the induction motor (15) at the ends of the stroke of the reciprocating pump (13), and, a surge eliminator (28) communicating with the output side of said pump (13) to augment the pressure in the circulation system during stroke reversal of the pump.
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