Selective coating apparatus

Details Selective coating apparatus Selective coating apparatus

1995-11-13

1997-09-23

Edwards, Laura

Coating apparatus

Projection or spray type

118313, 118315, B05C 500

Patent

active

056699719

ABSTRACT:
Apparatus and methods for selectively coating the surfaces of objects are disclosed. The apparatus comprises a plurality of megasonic transducers which generate acoustical pressure waves in the megasonic frequency range in an upward direction and cause droplets of coating material to be expelled from a supply of the liquid coating material which is disposed above the transducers. The droplets travel in a generally upward direction toward the surface of the object to be coated which is held in an inverted, i.e., downward position.

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