Appeal Number: 2006-1059
Application Number: 09/780,603
wheel.” Bonzer goes on to note (col. 5, lines 24-27) that the
Shore hardness of wheel portion (69) is preferably between about
50 and 70 on the A scale, while the hardness of cushion block
(19) is preferably between about 70 and 95 on the A scale. The
examiner has taken the position that Bonzer discloses a caster
wheel body (Fig. 2) having a hemispherical or semi-elliptical
cross-section.
The examiner has further urged that it would have been
obvious to one of ordinary skill in the art at the time of
appellant’s invention to provide the creeper of Miles with the
caster assembly of Bonzer, and appellant has not challenged that
combination with any reasonable degree of specificity. The
examiner then recognizes that such a combination of Miles and
Bonzer still does not address appellant’s claim 1 requirement
regarding the hardness of the wheel body, and turns to Block for
such a teaching (answer, page 4).
Block discloses a roller-type dust seal (40) on the rear of
a dust receiving bin (22) of a brush-type sweeper (10). As
noted in column 2, lines 54-57, and shown in Figures 2 and 3,
the roller seal (40) includes a plurality of hollow, generally
cylindrical roller segments (42) rotatably supported in an
5
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