Road structure – process – or apparatus – Apparatus – With in situ means for both comminuting and treating – e.g.,...
Patent
1992-08-06
1993-06-15
Melius, Terry Lee
Road structure, process, or apparatus
Apparatus
With in situ means for both comminuting and treating, e.g.,...
404 92, 404108, 366 17, E01C 2312, E01C 1918, B28C 704
Patent
active
052194507
ABSTRACT:
A movable asphalt mixing plant which is towed behind a milling machine. The mixing plant includes an input conveyor which receives the crushed aggregate from the milling machine. The aggregate is then introduced into a pug mill carried by the mobile plant. A heated storage tank and appropriate pumps and conduits for asphaltic cement located on the mobile plant allow the asphaltic cement to be mixed with the aggregate in the pug mill. The amount of asphaltic cement added to the aggregate may be controlled by a microprocessor which receives input regarding the production rate and input weight of aggregate. Asphaltic paving material produced by the pug mill is dispensed from the rear of the plant. A heating system employing hot circulating oil is also provided to ensure that the pumps and conduits for the asphaltic cement flow freely. A steering mechanism is provided for the plant to ensure centering for proper reception of aggregate and dispensing of paving material. Both the front and rear axles of the plant are pivoted. A hydraulic cylinder is connected to the rear axle to provide steering for same. The axles for the front wheels are connected to a trailer tongue which is releasably connected to a hitch on the towing vehicle. The hitch is located on a free end of a drawbar, with the other end of the drawbar being pivotally connected to the towing vehicle. A hydraulic cylinder is connected between the towing vehicle and the drawbar to control the position of the hitch.
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Connolly Nancy P.
Melius Terry Lee
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