Appeal No. 1997-4285 Page 6
Application No. 08/420,852
reactor/settling tank to assist in separating the wastewater
into sludge and supernatant. The original specification (pp.
8-9) also clearly provides that the preferred purifying
composition is American Colloid Company product number
RM1080N4 which does not change the pH of the wastewater
solution but does cause the wastewater to form a sweep floc
causing the heavy metal, oil, and grease impurities to settle
at the bottom of the reactor/settling tank. The original
specification (p. 9) then states that "[o]ther water
purification reactants commonly contain aluminum sulfate or
lime which alter the pH of the wastewater." In our view, this
disclosure in the application as originally filed reasonably
conveys to the artisan that the inventor had possession at
that time of the later claimed subject matter (i.e., "reactive
settling agent"). Moreover, it is our view that the phrase
"reactive settling agent" as used by the appellant is
interchangeable with the phrases "water purifying composition"
and "water purification reactant."
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