Appeal No. 1997-3024
Application 08/325,476
The 35 U.S.C. § 103 rejection
Turning to the § 103 rejection of claims 1-20,
representative claim 1 calls for coating equipment comprising,
inter alia, an extrusion coating head 1 disposed between run
guide means 2. With reference to appellants’ Figures 1 and 2,
the coating head 1 is set forth in claim 1 as comprising a
front edge 5, a rear edge 6, a coating fluid spouting slot 4,
and coating width regulation plates 7 disposed on each of the
two sides ends of the slot. The regulation plates are recited
in claim 1 as performing the function of
applying the coating fluid [36] to a surface of the
support [30] from said slot in a non-pressurized
condition in a liquid seal state while scraping off part
of a viscous fluid [35] previously applied to said
support [30] by said front edge [5].4
The critical aspect of appellants’ invention involves the
shape and position of that portion of the upper edge of the
plates 7 that lies adjacent the width of the slot 4. In
4In seems to us that it would be more accurate to
attribute these functions to the coating equipment as a whole,
rather than the regulation plates alone.
7
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