F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
341/39, 341/38.5
F04B 49/06 (2006.01) G05D 16/20 (2006.01)
Patent
CA 1174335
RECIPROCABLE PUMP WITH VARIABLE SPEED DRIVE Abstract: A reciprocable liquid pump driven by a direct current electric motor wherein the motor drive voltage, and thereby pump reciprocation, and output pressure, is selectively controlled by a circuit including an electromechanical trans- ducer coupled in pressure sensing relation to the liquid pump output, a manually operable pressure set point switch, and a silicon-controlled rectifier circuit.
396755
Krohn Duane D.
Trubell Larry P.
Graco Inc.
Kirby Eades Gale Baker
LandOfFree
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