Pothole patcher and road surfacing device

Improved apparatus as in claim 7 further including:

• a. first and second orifices in said binder tank,
• b. a first hose coupling said first orifice to said input orifice in said hollow circular ring to provide binder to the interior thereof,
• c. a second hose coupling said output orifice in said ring to said second orifice in said binder tank to allow binder to circulate through said hollow ring, and
• d. a shut-off valve in said second hose to prevent said binder from returning to said tank during spraying operations thereby forcing said binder out of said spray nozzles under pressure.

In a method of repairing and surfacing a road including the steps of mounting an aggregate material hopper on a movable vehicle frame, providing a binder material container on said vehicle, associating a conveyor means with said hopper for carrying said aggregate material, associating a discharge chute with said conveyor means for receiving said aggregate material carried thereon and directing said material downwardly, and dispensing said aggregate material from a discharge outlet on said chute for deposit on a roadway surface, the improvement comprising the steps of:

• a. rotatably mounting a hollow tube within and extending below said outlet of said discharge chute,
• b. mounting at least one projection on the periphery of said hollow tube for premixing said aggregate material moving downwardly in said discharge chute,
• c. attaching means to said hollow tube adjacent the bottom thereof for causing said aggregate material to swirl as it drops downwardly to said roadway surface from said discharge outlet, and
• d. spraying said binder material on said dispensed aggregate material after it leaves said discharge outlet but before it reaches said roadway surface.