Skip to Content
Find More Like This
Return to Search

Linear nozzle with tailored gas plumes

United States Patent

February 4, 2003
View the Complete Patent at the US Patent & Trademark Office
There is claimed a method for depositing fluid material from a linear nozzle in a substantially uniform manner across and along a surface. The method includes directing gaseous medium through said nozzle to provide a gaseous stream at the nozzle exit that entrains fluid material supplied to the nozzle, said gaseous stream being provided with a velocity profile across the nozzle width that compensates for the gaseous medium's tendency to assume an axisymmetric configuration after leaving the nozzle and before reaching the surface. There is also claimed a nozzle divided into respective side-by-side zones, or preferably chambers, through which a gaseous stream can be delivered in various velocity profiles across the width of said nozzle to compensate for the tendency of this gaseous medium to assume an axisymmetric configuration.
Kozarek; Robert L. (Apollo, PA), Straub; William D. (Pittsburgh, PA), Fischer; Joern E. (Bremen, DE), Leon; David D. (Murrysville, PA)
Alcoa Inc. (Pittsburgh, PA)
09/ 774,910
January 31, 2001
This invention was made with Government support under Contract No. DE-FC07-94ID13238 awarded by the Department of Energy. The Government has certain rights in this invention.