| 摘要 |
An abrasive media blaster assembly includes a container to hold at least one abrasive media, an external air source to provide a compressed air supply, a reservoir to hold water and rust inhibitor solution and a venturi blaster gun. The venturi blaster gun comprises an exterior nozzle, a media blaster block and a trigger with a handle. The fittings in the media blaster block create a venturi effect and draw the water and rust inhibitor solution so as for it to mix with the abrasive media where the dustless blaster sprays the mix to remove surface finishes from a metal surface and simultaneously provides a rust inhibitor to the surface, thereby allowing the device to be capable of performing any one, two or all of dry media blasting, slurry blasting, and water blasting. |
| 主权项 |
1. A venturi media blaster assembly comprising:
a container adapted to hold at least one abrasive media, the container including an outlet connected to a first valve member, a first tube member having a first end and a second end, the first end of the first tube member being connected to the first valve member and the second end being adapted to allow ambient air to pass therethrough and a second tube member having a first end and a second end, the first end of the second tube member being attached to the first valve member; an external air source having an air supply tube having an air outlet and an air inlet, the air outlet being connected to the external air source; a reservoir adapted to hold water and rust inhibitor solution, the reservoir having a reservoir tube including a first end and a second end, the first end being connected to the reservoir; a venturi blaster gun comprising:
an exterior nozzle having a proximal end and a distal end;a media blaster block attached to the proximal end of the exterior nozzle, the media blaster block comprising:
a top wall;a bottom wall having a first inlet connected to the air inlet of the air supply tube to receive air from the external air source, a second inlet connected to the second end of the second tube member to receive the at least one abrasive media from the container via a second valve member, a third inlet connected to the second end of the reservoir tube to receive water and rust inhibitor solution from the reservoir via a third valve member;a pair of left and right sidewalls, the left sidewall having an aperture to receive a left pinch knob and the right side wall having an aperture to receive a right pinch knob, the right and left pinch knobs regulating the flow of media and water received from the second and third inlets of the bottom wall utilizing the second and third valve members respectively;a left end wall having a left aperture, an interior wall having a first orifice connected to an interior nozzle that extends through the left aperture of the left end wall and the proximal end of the exterior nozzle to allow the flow of air from the first inlet of the bottom wall to the exterior nozzle, a second orifice adapted to allow the flow of media from the second inlet of the bottom wall to the exterior nozzle and a third orifice adapted to allow the flow of water and rust inhibitor solution from the third inlet of the bottom wall to the exterior nozzle; anda right end wall adapted to receive a fourth valve member engaged to a spring plunger such that when the spring plunger is actuated, the fourth valve member is opened and pressurized air flows from the first inlet of the bottom wall through the interior nozzle, thereby creating a venturi effect for propelling the media and the water and rust inhibitor solution discharged from the second and third orifice to the exterior nozzle thereby mixing of the media and water and rust inhibitor solution to provide a dustless blast. |
