Appeal No. 96-2170
Application 08/236,570
THE REJECTION
Claim 1 stands rejected under 35 U.S.C. § 103 as being
unpatentable over the admitted prior art in view of the Japanese
reference.
The rejection is explained in the Examiner's Answer.
The opposing viewpoints of the appellants are set forth in
the Brief.
OPINION
The appellants' invention is an improvement to coating
machines in which the coating to be applied to a web issues from
a passageway running through a die. The claim states that the
die terminates at the web in an upstream bar with a lip formed as
a land and a downstream bar with a lip formed as a sharp edge,
and that the passageway is a slot defined by these upstream and
downstream lips. According to the appellants' specification, a
common problem in this type of device is the occurrence of
streaks in the coated layer, caused by dried liquid residue
collected on the lips of the die near the coating bead. The
appellants assert that this is cured by their invention, which is
set forth in the claim as
a low surface energy covering applied to the surface of
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