Appeal No. 2004-1419
Application 09/733,041
substance feed channels (46) opening out into a swirling chamber
(42) communicating with an outlet orifice (44), we find no
disclosure in this reference of a specific example that falls
within the claimed ranges set forth in claim 1 on appeal. In
that regard, we consider that although Lund indicates that the
individual vane exit area (EA) may generally be within the range
of about 0.02 mm2 and about 0.07 mm2 (col. 5, lines 62-64), and
makes mention of a nozzle insert which has at least two spaced
grooves or vanes (col. 4, lines 42-45), it also expressly seeks
to provide an atomized liquid spray from a manually-actuated pump
dispenser having a 40 micron or less mean particle size with a
required activation liquid pressure below 200 psig. To that end,
Lund expresses a preference for an atomizing nozzle having a
cumulative vane exit area (i.e., a summation of the individual
vane exit areas EA) in a range of between about 0.18 mm2 and
about 0.36 mm2, a swirl chamber diameter CD in a range of between
about 1.3 mm and about 2.0 mm and a discharge orifice diameter of
about 0.35 mm so as to obtain the desired spray at the specified
activation pressure level. See, e.g., col. 2, line 53 through
col. 3, line 8 and col. 6, lines 5-17 of Lund.
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