Appeal No. 95-5000 Page 7
Application No. 08/021,883
Champeau discloses a system and method for circulating a
liquid mixture such as a water/paraffin mixture for aerobic
fermentation, which includes a parallelepiped vessel 1,
parallel vertical partitions 2 spaced from the top and bottom
of the vessel and defining flow paths, gas injection means 11-
15 at the foot of some flow paths to establish upward flow
therein and guide vanes 10 and 16 to promote flow from flow
paths of one direction to the flow paths for return flow.
After the scope and content of the prior art are
determined, the differences between the prior art and the
claims at issue are to be ascertained. Graham v. John Deere
Co., 383 U.S. 1, 17-18, 148 USPQ 459, 467 (1966).
Based on our analysis and review of Bailey and the
appellant's claims 1 and 27, it is our opinion that the only
difference is the limitation that "the volume of said body of3
3We agree with the examiner's determination that Bailey's
basin 13 is "lake-like." Additionally, we note that the
appellant has not contested this determination.
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