Patent ID: 8544408
Filing Date: 2013-10-01
Classification: B05B,F28D,F28F

Abstract:
1. A system for applying a metal particulate onto an object, the system comprising: a. a metal particulate source for providing the metal particulate: b. a hot pressurized air source for providing a hot pressurized air, wherein the hot pressurized air source comprises a compressed air source and a heat exchanger in communication with the compressed air source, and wherein the heat exchanger comprises a protective shell; a compressed air inlet disposed through the protective shell and in fluid communication with the compressed air source for receiving compressed air; a heat exchanger housing assembly within the protective shell comprising: a silicon carbide member comprising: a silicon carbide member top side and a silicon carbide member bottom side; a helical heat exchanger channel within the silicon carbide member and in fluid communication with the compressed air inlet; and a plurality of hot air channels extending from the silicon carbide member top side to the silicon carbide member bottom side; a combustion chamber engaged with the silicon carbide member bottom side comprising: an air inlet with a fan for receiving air; a gas conduit for receiving a fuel; and an ignition source for igniting the fuel and the air within the combustion chamber, forming a hot gas, wherein the combustion chamber is in fluid communication with the plurality of hot air channels to transfer heat from the combustion chamber to compressed air within the helical heat exchanger channel, forming a hot pressurized air; and an exhaust chamber engaged on the silicon carbide member top side and in fluid communication with the plurality of hot air channels for exhausting the hot gas from the heat exchanger; and a hot pressurized air outlet disposed through the protective shell and in fluid communication with the helical heat exchanger channel; and c. a nozzle assembly in fluid communication with the metal particulate source and the hot pressurized air source, wherein the nozzle assembly is configured to receive the hot pressurized air to form a venturi effect within the nozzle assembly, wherein the venturi effect draws the metal particulate into the nozzle assembly forming an air metal mixture, and wherein the nozzle assembly comprises: