Appeal No. 1997-3678
Application No. 08/485,161
method claim 1 on appeal is now quite detailed in requiring
the specific step limitations thereof highlighted earlier in
this decision.
As indicated above, we fully appreciate from our reading
of each of the proffered references the relevant teachings
thereof. The Reeber method increases heat transfer from a
substrate surface in liquefied helium gas, relying upon the
formation of bubbles in conical imperfections in the surface
(Fig. 2); the imperfections being made by treating the surface
with some tool or molding the imperfections into the surface
(page 5). The Chu method customizes nucleate boiling heat
transfer wherein boiling is started at a predetermined
temperature so that temperature overshoot or hysteresis is
prevented (column 2, lines 50 through 54) and column 7, lines
44 through 67); the method relies upon specially shaped
nucleation cavities (Fig. 12) effected by a laser beam or E
beam equivalent (column 6, lines 39 through 44). As explained
by patentee Chu, liquid will fill cavities and no vapor will
remain under a specified condition (column 5, lines
8
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