Appeal No. 2005-1690
Application 10/324,922
In light of the information at page 3, lines 6-10, of the
specification and the disclosure under the heading “Brief Summary
of the Invention” bridging pages 4 and 5, we are of the view that
a “tape-on” bead or drywall accessory as set forth in the
preamble of each of the claims on appeal would have been
understood by one of ordinary skill in the art as being a
particular form of bead or drywall accessory with a strip of
paper affixed to and covering the exterior surface of a flange of
the bead to define a paper leg that extends transversely beyond
an edge of the flange and wherein the paper leg is subsequently
used to attach the bead to the drywall structure.
By contrast, Tucker discloses a more conventional form of
edge finishing strip or corner bead wherein the bead (10) is
first attached to a drywall structure using only the pressure
sensitive adhesive strips (20, 22) located on the inner surface
of each flange and then has paper drywall strips (28, 30) placed
lengthwise thereon to run parallel to and in lapping relationship
on top of the flanges (16, 18). As noted in column 6, lines
29-35, the later applied paper tape strips aid in allowing the
edge portion of finishing strip (10) to blend in with the
uncovered wall surfaces of walls (32, 34). A paste-like
plastering mud is applied over the paper tape strips to cover and
saturate the paper strips and further blend the edge of finishing
strip (10) in with the wall surfaces.
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