Appeal No. 96-2501
Application 08/177,243
DECISION ON APPEAL
This is a decision on appeal from the examiner's final
rejection of claims 2 through 7, which are all of the claims
remaining in this application. Claim 1 has been canceled.
Appellant's invention relates to a stationary material
mixing apparatus (i.e., a static mixer) as seen in Figures 7
through 9 of the application drawings. As indicated on page 7
of the specification, the appellant's mixing apparatus comprises
a conduit (31) in the form of a cylinder having a longitudinal
axis (37). Within the cylinder there are provided a plurality
of mixing elements (33-36). As appellant further points out on
page 7 of the specification,
[t]hese elements are characterized as having
no edges or surfaces perpendicular to longi-
tudinal axis 37 and are sized so that no such
elements are in contact with one another
resulting in an open region of travel 96 for
fluids passing through conduit 31 along its
longitudinal axis ideally, each mixing ele-
ment is seated within the conduit at an angle
between approximately 30E to 45E to said
longitudinal axis. Most importantly,
however, the mixing elements are positioned
within the conduit so that at least 75% of
the conduit circumference in any plane is
free of any mixing element. Obviously,
2
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Next
Last modified: November 3, 2007