Appeal No. 1997-2674
Application No. 08/266,809
atomization (i.e., droplet size) and dispersion of fluid 28
throughout effluent 60 (i.e., distance of injection) and that
it can be provided by suitable means known to the skilled
artisan, such as by compression fitting 26 (column 6, lines
46-49; column 6, lines 59-61).
Burton further describes that the effluent flue conduit
additionally has a thermocouple for temperature measurement
(column 8, lines 7-9). Also, Burton states that the treatment
fluid 28 should be dispersed uniformly within effluent stream
60 at a point where effluent 60 is at a temperature effective
for pollutant reduction employing the desired additive at a
particular concentration and that, in the exemplary case of
droplets of an aqueous urea solution, the temperature will be
above about 1300EF with enhancers (column 5, lines 16-24).
In comparing Burton’s method against the subject matter
of appealed claim 9, we determine that Burton does not teach
the following element of appealed claim 9: “. . . when the
temperature of the gas is sensed to be within a selected
range, activating the conduit to insert the nozzle into the
gas through the opening and activating the conduit to spray
5
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