R-foam and method of manufacturing same
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United States of America Patent
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Apr 17, 2001
Grant Date -
N/A
app pub date -
Mar 25, 1998
filing date -
Mar 25, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An R-foam having a surface with an electrically resistive ink layer that is continuous and an electrically conductive ink layer that is in a predetermined pattern. The resulting surface is thereby electrically modified to have a predetermined resistive taper across it according to a predetermined resistivity curve. The method of manufacturing the R-foam involves printing the ink layers to the surface in a predetermined pattern that results in the predetermined resistivity curve. The ink layers may be applied using silk screening, stamping, and ink jet printing techniques.
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