Hydraulic apparatus for driving one or more hydraulic equipment

Details Hydraulic apparatus for driving one or more hydraulic equipment Hydraulic apparatus for driving one or more hydraulic equipment

1983-07-21

1985-09-24

Jenkins, Robert W.

Agitating

Mortar mixer type

Movable mixing chamber

180 143, 180 142, B28C 520, B28C 542

Patent

active

045429901

ABSTRACT:
A hydraulic apparatus drives a semi-trailer hitched to a road tractor and a hydraulic equipment device carried by the semi-trailer. The apparatus includes an auxiliary motor capable of driving the device, for example a concrete mixer, through a hydraulic circuit when the vehicle is traveling along the ground, and an electric circuit for controlling valves which, when the vehicle is stationary, put in communication the circuit and a hydrostatic circuit which drives the concrete mixer. The hydrostatic circuit motorizing the semi-trailer is used for alternately driving either the axles of the semi-trailer or the equipment device to be driven.

REFERENCES:
patent: 2968915 (1961-01-01), Feistel
patent: 3612202 (1971-10-01), Moon
patent: 3773304 (1973-11-01), Hodgson
patent: 3994353 (1976-11-01), Greene

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