Appeal No. 96-1687
Application No. 08/192,067
Kakko-Chiloff is to maintain the alignment and the spacing of a
pair of die cylinders even in the face of removing them and
replacing them with a new set. As stated in column 2:
With a view of reducing the adjustment idle times,
all these considerations lead to provide, for each new
format, a complete interchangeable cutting device or
“cassette” including, in addition to the cylinders for
format cutting, all the other elements necessary for
the cutting operation.
The patentee goes on the explain that the “cassette” comprises
upper and lower cutting cylinders (6 and 7) and the two pairs of
blocks (24 and 25) that support them, which are attached together
by a resilient coupling device (26) and installed or removed as a
unit (column 3, line 56 et. seq.). Thus, in the Kakko-Chiloff
construction, the cylinders and their associated arbor assemblies
are not separately removable, as is required by claim 1.
Bell discloses a rotary die machine in which the cylinders
and their arbor assemblies are separately removable, a fact that
is not explicitly stated, but is immediately recognizable as
being the case when one considers the description and operation
of the structure disclosed, with particular reference to column
3. The examiner’s position is that one of ordinary skill in the
art would have found it obvious to replace the “cassette” of the
primary reference, in which both cylinders and their arbors are
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