Patent ID: 7033249

Claim:
A dry ice blasting cleaning apparatus comprising (a) a cleaning wand comprising (i) an elongated body having a handle portion at a proximal end of the body; (ii) a dry ice blasting stream passage extending at least partly through the length of the body and having an input end connectable to a dry ice blasting stream source and a discharge end at a distal end of the body, and (iii) a heating fluid cavity between the blasting stream passage and an outer surface of the body, the heating fluid cavity configured to circulate a heating fluid therethrough; and (b) a fluid heater and pump fluidly coupled to the cavity and configured to heat and circulate a heating fluid through the cavity at a flow rate and temperature sufficient to impede condensation and frost from forming on the outer surface of the body when a dry ice blasting stream is flowing through the blasting stream passage.