Coating apparatus – Projection or spray type – Plural projectors
Patent
1996-12-23
1999-08-24
Simmons, David A.
Coating apparatus
Projection or spray type
Plural projectors
451421, 451193, 134177, B05B 706
Patent
active
059420375
ABSTRACT:
A nozzle having a series of orifices along a longitudinal length of the nozzle for processing a substrate and which is rotatably adjustable. By the nozzle design of the present invention, liquid is properly distributed along the longitudinal length of the nozzle independently of the angle of the aerosol spray. This allows for the generation of a uniform aerosol stream that is independent of spray angle. The nozzle design of the present invention improves the uniform distribution of liquid within the nozzle, which in addition to providing a more uniform liquid pooling, also substantially eliminates temporal non-uniformities across the nozzle length. Moreover, the present invention is also directed to a nozzle that is translatable in the direction toward or away from the substrate to be processed or parallel to the substrate surface. The nozzle includes a series of impingement orifices provided in a longitudinal direction along at least a part of the nozzle, wherein the nozzle has an interior longitudinally divided into first and second internal cavities with plural openings between the first and second internal cavities, and the openings between the first and second cavities are oriented at a different radial angle from the longitudinal axis than the radial angle of the impingement orifices. Preferably, the nozzle comprises an inner tube and an outer tube operatively supported and connected with respect to one another. The present invention is also directed to the combination of such a nozzle that is rotationally and translatably adjustable independently from one another.
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Kunkel Pamela A.
Siefering Kevin L.
Thomes Gregory P.
Wagener Thomas J.
Weygand James F.
FSI International Inc.
Padgett Calvin
Simmons David A.
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