Optical: systems and elements – Absorption filter – Neutral or graded density
Reexamination Certificate
2005-05-10
2005-05-10
Loney, Donald J. (Department: 1772)
Optical: systems and elements
Absorption filter
Neutral or graded density
C359S889000, C359S890000, C359S891000, C362S283000, C362S293000
Reexamination Certificate
active
06891686
ABSTRACT:
A flexible medium for a scrolling color changer and method of making thereof. The medium is made by applying an ink using a Meyer Rod which has varying cell lengths along its length. This leaves varying size cells of ink at different locations along the length of the medium. The ink has special characteristics whereby its evaporation rate and viscosity are carefully controlled. The viscosity is such that an amount of levelling will occur will be equal to the distance between any cells, but that cell to cell levelling will not, in general, occur.
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C. Finley, “Printing Paper and Ink”, Dewler Publishers, pp. 222-231 & 248-251 (1997).
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Fish & Richardson P.C.
Loney Donald J.
Production Resource Group L.L.C.
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