Pump assembly, suppression apparatus for use with a pump,...

Details Pump assembly, suppression apparatus for use with a pump,... Pump assembly, suppression apparatus for use with a pump,...

2004-10-28

2009-10-13

Freay, Charles G (Department: 3746)

Pumps

Motor driven

Fluid motor

C417S312000, C417S443000

Reexamination Certificate

active

07600985

ABSTRACT:
A pump assembly comprising an apparatus for reducing process noise manifest in a piping system. The invention introduces a pump pulse to counteract a negative dip in pressure when the reciprocating pump is at the completion of each pump stroke.

REFERENCES:
patent: 5492451 (1996-02-01), Franz et al.
patent: 6168394 (2001-01-01), Forman et al.
patent: 6280149 (2001-08-01), Able et al.
patent: 6846161 (2005-01-01), Kline et al.
patent: 7374409 (2008-05-01), Kawamura

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