Metering device for paint for digital printing

Details Metering device for paint for digital printing Metering device for paint for digital printing

1997-06-19

1999-10-26

Simmons, David A.

Coating apparatus

Projection or spray type

118313, 347 21, B05B 700

Patent

active

059721111

ABSTRACT:
A paint injector for digital printing in which paint is deposited in metered amounts on a print medium comprises a wheel rotatable by a shaft of a motor, an idler disposed in a paint reservoir, and an endless cable 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 cable is selectively controlled. As the wheel is rotated, paint contained within the paint reservoir coats the cable and is thus drawn by the cable in front of an air stream. The air stream pulls the paint from the cable 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.

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