Removable hydraulic apparatus with electric control for multiple

Details Removable hydraulic apparatus with electric control for multiple Removable hydraulic apparatus with electric control for multiple

1993-06-10

1994-04-05

Bagnell, David J.

Mining or in situ disintegration of hard material

Hard material disintegrating machines

Floor-working

404 90, 111101, E01C 2312, A01G 2306

Patent

active

052998576

ABSTRACT:
An attachment apparatus which can be detachably mounted to a self-propelled vehicle, such as a skid-steer front end loader. The apparatus includes a frame which can be attached to the lift arms of the front end loader, and an axially rotatable work implement. The work implement may be positioned in at least two dimensions with respect to the frame by hydraulic cylinders. Secondary hydraulic lines which extend from each of the hydraulic cylinders, and a primary hydraulic line are hydraulically joined by a manifold. Electrically actuated valves connected to the manifold selectively provide communication between the primary hydraulic line and one of the secondary hydraulic lines to thereby control movement of the apparatus in each of the available dimensions. The control system requires that only one set of hydraulic cables be connected to the hydraulic pressure source of the vehicle, which simplifies attachment and removal of the apparatus, and provides safer operation, and reduced manufacturing costs.

REFERENCES:
patent: 3713234 (1973-01-01), Grover et al.
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patent: 4878713 (1989-11-01), Zanetis
patent: 4999935 (1991-03-01), Simi et al.
patent: 5135287 (1992-08-01), Karnes
DigTec AP 400 Series II Cold Planer Brochure. (undated).
HydraForce SV10-42 Solenoid Valve Specification Sheet. (undated).
HydraForce SV10-41 Solenoid Valve Specification Sheet. (undated).
Melroe Europe Publication, Bobcat Grader Specifications (undated).

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