Hydraulic compression apparatus

Details Hydraulic compression apparatus Hydraulic compression apparatus

1985-04-26

1987-05-26

Spruill, Robert L.

Metal deforming

With means to drive tool

Including pneumatic- or fluid-actuated tool support

72410, 60477, B21J 912

Patent

active

046675027

ABSTRACT:
A hydraulic apparatus for converting hydraulic pressure into mechanical movement for operating a tool or other device, operated by a pump block having a bore therein and a moveable plunger disposed within said bore. A cylinder is disposed over the pump block. The cylinder is captively held over the pump block and is moveable with respect thereto along the common axis. A fluid reservoir is defined between the cylinder and the pump block, and contains the hydraulic fluid. The plunger is operated by a pair of moveable arms secured to the apparatus and causes pressure to build in the fluid in an inlet chamber which communicates between the pump block and the cylinder. A pressure control valve is mounted adjacent the pump block and limits the hydraulic pressure which may be applied in the system. A release valve and apparatus is provided for releasing the hydraulic pressure and returning it to the reservoir.

REFERENCES:
patent: 2618929 (1952-11-01), Bidin
patent: 3030838 (1962-04-01), Klingler
patent: 3417599 (1968-12-01), Burns
patent: 4031619 (1977-06-01), Gregory
patent: 4110983 (1978-09-01), Sherman
patent: 4480460 (1984-11-01), Bush et al.

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