Patent ID: 6578924
Filing Date: 2003-06-17
Classification: B60P

Abstract:
A motorized dump-type vehicle for on-the-job transporting of concrete or other materials, comprising:a chassis frame having front and rear ends, and left and right sides thereof; an engine mounted near the rear end of said frame; a front hydraulic drive means secured to said frame; a left wheel means located on said left side of said frame front end, wherein said left wheel means is drivingly connected to said front hydraulic drive means thereby enabling said left wheel means to be driven; a right wheel means located on said right side of said frame front end, wherein said right wheel means is drivingly connected to said front hydraulic drive means thereby enabling said right wheel means to be driven; an open top dump container, said container being supported on said frame and having a bottom front end portion pivotally mounted on the front end of said frame; at least one hydraulic piston/cylinder having one end pivotally mounted on said frame and the opposite end pivotally connected to said container thereof enabling the rear end of said container to be raised and lowered; a rear hydraulic drive means secured to said frame; at least one rear wheel means mounted below and centrally of the rear end of said frame enabling said rear wheel means to swivel about a vertical axis for steering said vehicle, wherein said rear wheel means is drivingly connected to said rear hydraulic drive means thereby enabling said rear wheel means to be driven; a hydraulic fluid tank secured to said vehicle, said tank having an input connection for receiving and storing hydraulic fluid and an output connection for withdrawing fluid to be pumped; an adjustable oil pump mounted on said vehicle, said pump having a pump input connection to the output connection of said tank and a pump output connection; and a hydraulic valve and conduit system connected between said pump output connection and said tank input connection including a first lever-controlled valve connected by conduit to said piston/cylinder for raising and lowering said container, second lever-controlled valve connected by conduit to said front hydraulic drive means for forward and reverse driving of said left and right wheel means, and a third lever-controlled valve connected by conduit to said rear hydraulic drive means for engaging or disengaging said rear wheel means.