Appeal 2006-2453
Application 10/302,391
and is directed to holes 24 in the permeate carrier tube 20. [0032].
Because the permeate carrier envelopes are sealed along the side edges
28 and distant axial edges 30, fluid can only enter from a radial direction.
[0033].
Claims 1 and 6 are illustrative of the invention and are reproduced
below:
1. A method of preparing a leaf packet for a spiral filtration module
comprising the steps of:
providing a membrane sheet;
applying a UV curable adhesive to a surface of said membrane sheet,
across the width of said membrane sheet;
exposing said adhesive to UV radiation to cure said adhesive; and
dividing said membrane sheet across the width of said membrane
sheet along a line to provide first and second membrane leaves, wherein said
line is within the portion of said membrane sheet to which said adhesive is
applied in said applying step,
wherein said cured adhesive reinforces said membrane sheet in the
area of said line.
6. A leaf packet useful in forming a spiral filtration module
comprising:
a membrane sheet presenting first and second membrane leaves,
wherein said first and second membrane leaves are divided by a line across
the width of said membrane sheet; and
a strip of UV curable adhesive affixed to the surface of each said leaf
adjacent said line, wherein said adhesive has been exposed to UV radiation
to cure said adhesive, and the cured adhesive reinforces said membrane
sheet in the area of said line.
The Examiner relies on the following prior art references to show
unpatentability:
Bray US 4,842,736 Jun. 27, 1989
Kobayashi US 6,218,465 B1 Apr. 17, 2001
Cheng US 6,433,091 B1 Aug. 13, 2002
Simonetti US 2003/0034293 A1 Feb. 20, 2003
4
Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Next
Last modified: September 9, 2013