Power plants – Pressure fluid source and motor – Pulsator
Patent
1992-08-03
1994-03-29
Look, Edward K.
Power plants
Pressure fluid source and motor
Pulsator
92 62, 92107, F15B 700
Patent
active
052973824
ABSTRACT:
An intensifier cylinder including a body structure defining a first bore, a first piston structure including a piston mounted in the first bore and a piston rod secured to the piston and extending at its forward end through an end wall of the body structure, a second bore defined in the body structure, a second piston structure including a second piston mounted in the second bore and a second piston rod secured by the second piston and movable at its forward end into the first bore upon stroking of the second piston in response to the introduction of pressurized gas into the second bore to seal off and act upon hydraulic fluid in the first bore to produce an intensified force on the first piston structure. The first piston structure includes a ram member including an end wall secured to the forward end of the first piston rod and an annular sleeve secured to the ram member end wall and extending rearwardly in surrounding relation to the second piston rod to define an annular space between the first piston rod and the ram sleeve, and the body structure defines an annular bore surrounding the first bore and slidably receiving the annular sleeve of the ram member.
REFERENCES:
patent: 524184 (1894-08-01), Palmer
patent: 3008033 (1961-11-01), Senn
patent: 3875365 (1975-04-01), Beneteau
patent: 4099436 (1978-07-01), Beneteau
patent: 4153180 (1979-05-01), Fernique
patent: 4750408 (1988-06-01), Stoll
Bulletin, "OHMA Piercing Cylinder", OHMA.sup.R Systems Inc. Fraser, Mich.
Bulletin, "Miller Air to Hydraulic Boosters", Miller Fluid Power, Bensenville, IL, Bulletin No. B200-674, 1974.
Obrecht Robert E.
Waltonen Edward J.
Look Edward K.
Nguyen Hoang
REO Hydraulic Pierce & Form Inc.
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