Appeal No. 2006-2161
Application No. 10/248,326
• a plurality of heat transfer passages extending
about said battery cells (“coolant . . . flows
through battery pack” – Lake, col. 24, l. 10-11);2
• a supply of heat transfer working fluid; and
• at least one working fluid driver for circulating
said heat transfer working fluid from said supply
through said heat transfer coolant passages, i.e.,
a pump.
See Answer at 4. The examiner also finds that Lake does not
disclose a controller for operating a working fluid driver
to periodically reverse the direction of the flow of heat
transfer fluid through the heat transfer passages of its
battery pack. Answer at 4. To remedy the deficiency of
Lake’s disclosure, the examiner combines the teaching of
Kothmann. Answer at 4.
Kothmann discloses an apparatus for “cooling of fuel
cell stacks . . . through directional control of the cooling
medium.” Kothmann, col. 1, l. 11-13. To this effect,
Kothmann discloses a fuel cell cooling circuit comprising:
• a fuel cell stack with cooling modules placed
between approximately every third to eighth cell;
• a coolant;
2 While Appellant disputes Lake’s disclosure of this element (Appeal
Brief at 4, ¶ 2), we need not address the issue to decide this appeal.
We presume the examiner’s findings with regard to claim elements
described by Lake are accurate.
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