Coating apparatus – Projection or spray type
Patent
1997-10-27
1999-08-31
Simmons, David A.
Coating apparatus
Projection or spray type
118313, 347 21, B05B 700
Patent
active
059448938
ABSTRACT:
A paint injector for digital printing in which paint is deposited in metered amounts on a print medium comprising a wheel rotatable by a shaft of a motor, an idler disposed in a paint reservoir, and a segment of wire disposed around the wheel and the idler. The motor is preferably computer controlled such that the rotation of the wheel and thus movement of the wire is selectively controlled. As the wheel is rotated, paint contained within the paint reservoir coats the wire and is thus drawn by the wire in front of an air stream. The air stream pulls the paint from the wire and carries it toward the print medium. By employing a plurality of such paint injectors into a single print head, each containing a different color of paint, and secured to a computer controlled, movable carriage positioned over the print medium, a digital image can be painted by the print head on the print medium.
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NUR Advanced Technologies advertisement for Blueboard.TM. in Digital Graphics Magazine, May/Jun. 1997, p. 69.
Paasche AB (Fine Art) Airbrush instructions, reprinted courtesy of Airbrush Digest, 1983.
Padgett Calvin
Simmons David A.
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