Appeal 2006-2453
Application 10/302,391
and concentrate outlet ends of the filter element [0010] to prevent
unfiltered feed fluid from entering the fabric sheet or backing material
directly through a cross-section [0003].
8) Figure 2 of Simonetti is reproduced below:
9) Simonetti Figure 2 illustrates a portion of the filter element of
Simonetti Figure 1 that lies between two filtration envelopes [0011].
10) The desired flow path 101a is substantially parallel to the surface
plane of the filter membrane and through the filter membrane 105a
and fabric sheet 107a. [0012].
11) Simonetti teaches that some unfiltered feed flow may also travel along
the lateral flow path 101b and enter the filter membrane 105a through
its cross-sectional surface “at either of the ends of the filter element or
at cracks in the filter element, e.g., those that tend to form near the
crease in an envelope." [0012]. As a result, feed flow along the
lateral flow path 101b may avoid filtration through filter membrane
8
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