Pumps – Motor driven – Fluid motor
Patent
1991-06-04
1993-04-27
Bertsch, Richard A.
Pumps
Motor driven
Fluid motor
417347, 417383, F04B 4306
Patent
active
052057224
ABSTRACT:
An apparatus for continuously pumping fluid at a substantially constant flow rate is disclosed. This apparatus is comprised of a metering pump, a rotary timing valve, at least three fluid transducers, and means for synchronizing said metering pump with said rotary timing valve.
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patent: 4583920 (1986-04-01), Linoner
patent: 4844706 (1989-07-01), Katsuyama
patent: 4946100 (1990-08-01), Flemming
Bertsch Richard A.
Greenwald Howard J.
Korytnyk Peter
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