Microfluidic writing pen

Details Microfluidic writing pen Microfluidic writing pen

1997-11-24

1999-06-15

Walczak, David J.

Coating implements with material supply

Combined

401 44, 401 45, B43K 512

Patent

active

059115335

ABSTRACT:
A microfluidic pen for selectivly writing lines of different colors, includes a colorant mixing chamber and a writing tip in communication with the colorant mixing chamber; a plurality of colorant reservoirs disposed in the pen and which contain different colorants; microkinetic pump selectively effective to deliver colorant in selected amounts from the colorant reservoirs to the colorant mixing chamber wherein the colorants are mixed to provide a colorant of the desired color. The color is selected by a user and actuates the microkinetic pump to cause the desired amount of colorants to be delivered to the colorant mixing chamber where the writing tip can write a line of the desired line colors.

REFERENCES:
patent: 5306092 (1994-04-01), Jenq
patent: 5383736 (1995-01-01), Okulov

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