F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
138/67
F15B 11/00 (2006.01) F15B 11/032 (2006.01) F15B 11/072 (2006.01)
Patent
CA 1245133
ABSTRACT OF THE DISCLOSURE A pneumatic and hydraulic system for operating fluid- operated cylinders is provided. The system employs both air and oil in a tank with the oil supplied at least to the blind side of a piston in the cylinder. The pressure of the oil is controlled by the pressure of the air in the tank and a blocking valve is employed between the tank and the cylinder to control flow of the oil. The use of the oil and valve enables the position of the piston and the piston rod to be closely controlled so that the apparatus can be used for applications where more complicated apparatus was pre- viously required. Two of the air/oil tanks can also be em- ployed to control the supply of oil to both sides of the pis- ton in the cylinder for accurately positioning same.
479043
Beneteau Donald J.
Rowley C.a.
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