Electric heating – Metal heating – By arc
Patent
1994-11-14
1996-01-23
Walberg, Teresa J.
Electric heating
Metal heating
By arc
21912184, 239 79, 239290, 222566, B23K 2614
Patent
active
054866766
ABSTRACT:
A coaxial single point powder feed nozzle includes an inner tube disposed coaxially within an outer tube. The inner tube has a powder inlet and powder outlet, and the outer tube has a gas inlet for receiving a shaping gas, and a single nozzle outlet. An intermediate portion of the outer tube is spaced radially outwardly from the inner tube to define an annular flow manifold therebetween which receives the shaping gas. The powder outlet is disposed coaxially with the nozzle outlet and is spaced therefrom to define an annular gas outlet for the manifold for channeling the shaping gas around the powder prior to discharge thereof from the nozzle outlet.
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General Electric Company
Hess Andrew C.
Mills Gregory L.
Narciso David L.
Walberg Teresa J.
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