Method and apparatus for fabricating bichromal balls for a twisting ball display
First Claim
1. Apparatus for fabricating bichromal balls, comprisinga separator member having a first surface, a second surface located opposite said first surface and an edge region in contact with both said first and second surfaces,means for flowing first and second, differently colored, hardenable, liquid materials over said first and second surfaces, respectively, toward said edge region so that said first and second liquid materials arrive at said edge at substantially the same flow rate and form a reservoir of said liquid materials outboard of said edge region, said reservoir being comprised of side-by-side regions of said first and second liquid materials,means for propelling said first and second liquid materials out of said reservoir into a fluid medium as a plurality of bichromal streams having side-by-side portions of different colors, the forward end of each stream being unstable and breaking up into droplets which form into spherical balls, each of said balls comprising hemispheres of differently colored hardenable liquid, andmeans for collecting said bichromal balls.
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Accused Products
Abstract
An apparatus for fabricating hemispherically bichromal balls, comprising a separator member having opposing first and second surfaces located and an edge region in contact with both surfaces, and delivery means for flowing first and second colored hardenable liquid material over the first and second surfaces, respectively, so that the liquid materials arrive at the edge at substantially the same flow rate and form a reservoir outboard of the edge region. The reservoir comprises side-by-side regions of different colors which do not intermix. Further means is provided for propelling the first and second liquid materials away from the separator member and out of the reservoir into a fluid medium as a plurality of side-by-side bichromal streams whose forward ends become unstable and break up into droplets which form into spherical balls, each of the balls comprising hemispheres of differently colored hardenable liquid, and means for collecting the bichromal balls.
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Citations
13 Claims
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1. Apparatus for fabricating bichromal balls, comprising
a separator member having a first surface, a second surface located opposite said first surface and an edge region in contact with both said first and second surfaces, means for flowing first and second, differently colored, hardenable, liquid materials over said first and second surfaces, respectively, toward said edge region so that said first and second liquid materials arrive at said edge at substantially the same flow rate and form a reservoir of said liquid materials outboard of said edge region, said reservoir being comprised of side-by-side regions of said first and second liquid materials, means for propelling said first and second liquid materials out of said reservoir into a fluid medium as a plurality of bichromal streams having side-by-side portions of different colors, the forward end of each stream being unstable and breaking up into droplets which form into spherical balls, each of said balls comprising hemispheres of differently colored hardenable liquid, and means for collecting said bichromal balls.
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12. Method for fabricating bichromal balls, comprising the steps of
flowing first and second, differently colored, hardenable, liquid materials over the opposite surfaces of a separator member and toward an edge thereof so that said first and second liquid materials arrive at said edge at substantially the same flow rate, forming a reservoir of said first and second liquid materials outboard of said edge, said reservoir being comprised of side-by-side regions of said first and second liquid materials, propelling said first and second liquid materials out of said reservoir into a fluid medium as a plurality of bichromal streams having side-by-side portions of different colors, causing the forward end of each stream to be unstable and to break up into droplets which form into spherical balls, each of said balls comprising hemispheres of differently colored hardenable liquid, and collecting said bichromal balls.
Specification