Dusting equipment

Claim 1

A DUSTING EQUIPMENT COMPRISING A POWER SUPPLY HOPPER, A HOPPER COLLECTOR THEREABOVE, A FILTER CHAMBER INTERVENING BETWEEN THE POWDER COLLECTOR AND THE POWDER SUPPLY HOPPER, AN OUTLET TUBE NEAR THE BOTTOM OF THE POWDER SUPPLY HOPPER AND PROTRUDING OUTWARDLY THEREFROM, A METAL RING CONSIDERABLY HEAVIER THAN THE OUTLET TUBE AND CLAMPED ABOUT THE SAME AND A SECOND, LIKE METAL RING CLAMPED ABOUT SAID POWDER OUTLET TUBE, A FUNNEL BELOW SAID OUTLET TUBE HAVING A MOUTH INCLINED DOWNWARDLY AND OUTWARDLY BELOW THE OUTLET TUBE, SAID FUNNEL BEING SECURED AT ITS RIM TO SAID FIRST RING, A SCREEN OVER THE MOUTH OF SAID FUNNEL, A DISPERSION INJECTOR BELOW THE FUNNEL AND SUPPLIED THEREFROM, A SOURCE OF COMPRESSED AIR CONNECTED THERETO, A DUSTING CHAMBER CONNECTED TO THE DISCHARGE END OF THE DISPERSION INJECTOR AND ENCOMPASSING THE SURFACE AREA TO BE DUSTED, A POWDER OUTLET FROM THE DUSTING CHAMBER, A CONDUIT CONNECTED THEREFROM AND DELIVERING INTO SAID POWDER COLLECTOR, AN ELECTRIC MOTOR, AND A FAN DRIVEN THEREBY, BOTH IN SAID POWDER COLLECTOR, FOR PROPELLING THE COLLECTED POWDER TO PASS UPWARD THROUGH SAID FILTER, MEANS FOR VENTING AIR FROM SAID FILTER CHAMBER, AND AN ELECTRIC VIBRATOR RIGIDLY CONNECTED TO SAID FIRST METAL RING AND RIGIDLY CONNECTED IN VIBRATING TRANSMITTING RELATION TO SAID SCREEN.