Appeal No. 96-2630
Application No. 08/259,824
Busker also teaches (1) that “the degree or depth of spacing
or separation S (FIG. 3) between the nips of the groove rolls 20
and 21, i.e. the spacing between the crests of the ribs 22 and
the roots of the grooves 23, has been found to result in a fairly
predictable bulkiness and softness in the resulting texture in
the sheet web” (column 3, lines 49 through 54), (2) that “the
tear strength of the ultimately textured sheet will be
substantially proportionate to the severity of texturing
treatment to which the dry web is subjected as a result of the
spacing of the roll nip” (column 3, line 67 through column 4,
line 2), and (3) that “[w]here greater bulk is desired, the dry
tissue web W may be advanced though a plurality of texturing roll
passes” (column 4, lines 27 through 29).
Burgess and Benz disclose tissue sheet webs which are
advanced through embossing rolls to impart softness and bulk to
the tissue. The embossing surface on each of the rolls consists
of a grid-like array of complementary male projections and female
recesses (see Figures 1 and 2 in both Burgess and Benz).
In explaining the rejection based on the combined teachings
of Busker, Burgess and Benz, the examiner concludes that it would
have been obvious to one of ordinary skill in the art to replace
the ribbed design of Busker’s texturing rolls with the grid-like
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