Appeal No. 1999-2831 Page 6
Application No. 08/703,435
discloses an airfoil having a central supporting section 11,
an entering edge section 22 and a trailing edge section 31.
The central supporting section 11 includes arcuate track
members 15, upper and lower guide rollers 17 and sprockets 18
driven by suitable gearing. The entering edge section 22 and
the trailing edge section 31 each includes an arcuate arm 28
(which may be an I-beam in cross section) having rollers 30
for engaging the track members 15 and a rack 29 for meshing
with the associated sprocket 18. As can be seen from a review
of Figures 1, 2 and 7, the guide rollers 17 do not engage that
portion of the arm 28 which contains the rack 29.3
The appellant argues (brief, page 6, and reply brief,
pages 6-8) that claim 1 is not anticipated by Burnelli since
Burnelli does not teach or suggest the following limitation of
claim 1: "at least one roller track coextending with said rack
adjacent thereto, along said beam." The examiner has
3Burnelli is further discussed on pages 1-4 of the
appellant's specification.
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