Appeal No. 1999-1080
Application No. 08/681,022
[20] in surrounding relation to the check valve [28] and
extends upwardly toward a cavity formed in the bottom of the
piston [68] to bias the latter in an upwardly direction. A
circular hole in the center of the piston [68] communicates
with the passage [70] when the disc [64] is opened. See col.
3, ll. 41-52.
The examiner determined that Favre discloses or suggests
all of the structure of the pump dispenser recited in claim
17, except for the details of the pair of pump means. The
examiner also determined that Moore discloses or suggests all
of the structure of the pump means recited in claim 17. See
answer, p. 3. The appellants have not challenged these
determinations.
The examiner also concluded that:
[i]t would have been obvious . . . to have modified
the Favre pumps with first and second valves as
taught by Moore et al for self priming and to
prevent pressure from the working piston to be
directed into the large chamber and toward the
independent piston at the bottom of the same.
Id. at pp. 3 and 4. We agree.
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