Appeal No. 2003-0609
Application No. 09/497,844
For example, shown at 862 is a structure 864 defining a
square central bore 866. This bore 866 may be square
along its entire length or may be made square only at the
end portion thereof to reduce the cross-sectional area
through which the texture material must pass as it is
dispensed.
Shown at 868 is yet another structure 870 defining a
bore 872 having a triangular cross section. Shown at 874
is a structure 876 having a bore 878 configured in a
rectangular shape. At 880 in FIG. 47 is shown yet
another structure 882 that defines a bore 884 having an
oval configuration.
Bores such as the bores 878 and 884 described above
that are wider than they are tall may, in addition to
defining a certain cross-sectional area, also create
desirable spray characteristics such as a fan shape.
Independent claim 12
Appellants’ claim 12 calls for, among other things, a flow
restrictor (element 28 in Figure 7) being a channel having a
rectangular shaped cross section, and an exit port (element 40 in
Figure 7) extending from the flow restrictor to the nozzle exit
end, wherein the exit port is rectangular in shape and comprises a
pair of vertical opposing walls and a pair of horizontal opposing
walls, wherein at least one of the pairs of walls (elements 42, 44
in Figure 7) flares outward from the flow restrictor to a nozzle
exit end.
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