Abrasive type roof coating apparatus

Claim 1

A SINGLE LINE APPLICATOR FOR ABRASIVE TYPE LIQUID ROOFING MATERIAL, SAID APPLICATOR COMPRISING A TANK HAVING A CYLINDRICAL BOTTOM, AN AGITATOR MOUNTED FOR ROTATION CO-AXIALLY OF THE CY LINDRICAL TANK BOTTOM, A PLURALITY OF BLADES MOUNTED ON THE AGIATOR FOR ROTATION THEREWITH, THE OUTWARD EDGE OF EACH BLADE BEING SPACED SLIGHTLY FROM THE CYLINDRICAL TANK BOTTOM DURING ROTATION OF THE AGIATOR, A FLEXIBLE WIPER BLADE MOUNTED ON EACH AGITATOR BLADE AND EXTENDING OUTWARDLY THEREFROM FOR WIPING CONTACK WITH A PORTION OF THE CYLINDRICAL TANK BOTTOM, A DISCHARGE LINE FROM THE BOTTOM OF THE TANK IN THE PATH OF THE WIPER BLADES, A GRATING COVERING THE INLET END OF THE DISCHARGE LINE AND POSITIONED FOR WIPING ENGAGEMENT BY EACH OF THE WIPER BLADES DURING ROTATION OF THE AGITATOR, A PUMP HAVING ITS INLET CONNECTED TO THE DISCHARGE LINE FROM THE TANK, POWER DRIVE MEANS OPERATIVELY CONNECTED TO DRIVE THE AGIATOR AND THE PUMP, A SINGLE HOSE LINE CONNECTED TO THE OUTLET OF PUMP, THE HOSE LINE BEING OF A LENGTH TO EXTEND TO ALL PARTS OF A ROOF AREA TO BE COATED, A DISCHARGE NOZZLE AT THE OUTLET END OF THE HOSE FOR DISA CHARGING MATERIAL PUMPED FROM THE TANK THROUGH THE HOSE, VALVE MEANS CONTROLLING THE DISCHARGE OF MATERIAL FROM THE NOZZLE, A BY-PASS LINE ADJACENT THE DISCHARGE END OF THE PUMP FOR BY-PASSING MATERIAL FROM THE DISCHARGE LINE FROM THE PUMP BACK INTO THE TANK, AND SPRING BIASED VALVE MEANS IN THE BY-PASS LINE FOR CONTROLLING THE PRESSURE AT WHICH MATERIAL FLOWS FROM THE PUMP THROUGH THE BY-PASS LINE AND BACK INTO THE TANK.