F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
103/49
F04B 19/00 (2006.01) F04B 5/02 (2006.01) F04B 9/129 (2006.01) F04B 11/00 (2006.01)
Patent
CA 2037591
IMPROVED DOUBLE-ACTING POSITIVE DISPLACEMENT PUMP Abstract A double-acting positive displacement pump has the piston rod and piston sized so as to balance the dynamic forces generated in the pump, resulting in substantially equal output pressure on both the downstroke and upstroke of the pump.
Ives Frank E.
Pmc Inc.
Smart & Biggar
LandOfFree
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