Patent ID: 8302661
Filing Date: 2012-11-06
Classification: B22D,C23C

Abstract:
1. An apparatus for producing a preform by nucleated casting, the apparatus comprising: a mold comprising a side wall and a top surface, and wherein the side wall of the mold comprises a mold upper portion; an atomizing nozzle adapted to produce a droplet spray directed toward the mold; and a gas injector comprising a plate and a gas injector upper portion, the gas injector adapted to produce a gas flow; wherein the plate and the mold define a plurality of unconnected gas flow passageways therebetween, each gas flow passageway terminating in an opening positioned on a perimeter of the mold top surface; and wherein each of the plurality of gas flow passageways is configured to produce a gas flow at the opening of the gas flow passageway that redirects at least a portion of the droplet spray away from the side wall of the mold