Appeal No. 96-2170
Application 08/236,570
application.
The appellants' invention is directed to a die coating
apparatus. The claim on appeal reads as follows:
1. A die coating apparatus for coating fluid coating onto a
surface comprising:
a die having an upstream bar with an upstream lip and a
downstream bar with a downstream lip, wherein the upstream lip is
formed as a land and the downstream lip is formed as a sharp edge
having an edge radius no greater than 10 microns;
a passageway running through the die between the upstream
and downstream bars, wherein the passageway comprises a slot
defined by the upstream and downstream lips, wherein coating
fluid exits the die from the slot to form a continuous coating
bead between the upstream die lip, the downstream die lip, and
the surface being coated; and
a low surface energy covering applied to the surface of the
downstream bar adjacent to the sharp edge, and a low surface
energy covering applied to the land, adjacent to its downstream
edge to present a generally undulating surface, wherein the low
surface energy coverings do not extend completely to the edges of
the downstream bar and the land.
THE REFERENCES
The references relied upon by the examiner to support the
final rejection are:
Japan 1-57629 Dec. 6, 1989
Appellant’s Admitted Prior Art Statement cited in the Information
Disclosure Statement filed 7/21/94 (Paper #3).
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