Appeal No. 97-1973
Application No. 08/248,003
In reaching our decision in this appeal, we have given
careful consideration to the appellants' specification and
claims, to the applied prior art references, and to the
respective positions articulated by the appellants and the
examiner.
Claim 4, the only independent claim before us for review,
recites a bucket dredger comprising a swivelling ladder for
connecting to a vessel, a driven upper wheel at the top end of
the ladder and a polygonal lower wheel at a lower end of the
ladder, the lower wheel having upright edges, at least one
endless chain guided on the wheels and buckets bound to a
plurality of shackles of the at least one chain. The buckets
are further defined in claim 4 as including a bottom wall
provided with two ribs extending downwardly substantially
parallel to the side walls of the bucket and substantially
along a length of the bottom wall. Claim 4 also recites that
the ribs, in an assembled state of the bucket, extend adjacent
to the at least one chain and that the upright edges on the
3
Page: Previous 1 2 3 4 5 6 7 8 9 10 Next
Last modified: November 3, 2007