Power plants – Pressure fluid source and motor – Pulsator
Patent
1989-09-18
1990-10-09
Capossela, Ronald C.
Power plants
Pressure fluid source and motor
Pulsator
60567, 60589, 91 4R, F15B 1522
Patent
active
049613170
ABSTRACT:
An oleopneumatic load intensifier apparatus for creating a rapid advance of a tool carrying piston rod followed by slow advance of the piston rod at an increased load. The apparatus has a master cylinder and an actuating cylinder that can assume different positions with respect to the master cylidner while maintaining fluid communication therewith. An enclosed hydraulic system is shared by the master and actuating cylinders. Pneumatic pressure actuates a piston within the master cylinder that causes a rapid advancement of a hydraulic fed piston within the actuating cylinder, causing a piston rod and a tool associated therewith to contact a workpiece. Pneumatic pressure then causes a piston and associated piston rod, located in the master cylinder, to increase the hydraulic pressure in the line to the hydraulic fed piston located within the actuating cylinder, thus, increasing the load delivered to the workpiece.
REFERENCES:
patent: 3426530 (1969-02-01), Georgelin
patent: 4099436 (1978-07-01), Beneteau
patent: 4395027 (1983-07-01), Nordmeyer
patent: 4419862 (1983-12-01), Farr
patent: 4455831 (1984-06-01), Maehara
patent: 4671168 (1987-06-01), Sauvee et al.
patent: 4736588 (1988-04-01), Leiber
Capossela Ronald C.
Savair Inc.
VanOphem Remy J.
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