Pumps – Motor driven – Fluid motor
Patent
1975-06-06
1977-03-22
Husar, C. J.
Pumps
Motor driven
Fluid motor
92 85B, 92168, 417378, 417402, F04B 1700
Patent
active
040133850
ABSTRACT:
A deep well pump system incorporating a sub-surface pump unit and a surface power unit with a fluid column formed therebetween. The pump unit incorporates a counterbalance means that is specifically illustrated as a collapsible volume chamber operably engaged with a pump piston to cause a fluid pumping linear movement of the piston responsive to the selective contraction and expansion of the collapsible volume chamber. The power unit, in the charging stroke thereof, pressurizes the fluid column by the introduction of a volume therein sufficient to contract the collapsible volume chamber, with a subsequent pressure buildup effecting discharge of additional fluid from the power unit with less valving than the prior art pumps.
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patent: 2917000 (1959-12-01), English
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patent: 3838945 (1974-10-01), Moore
Fails James C.
Husar C. J.
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