Appeal No. 2005-2546
Application No. 09/862,910
a shaft having windings located within said magnetic field
member with an electrical current flowing through said windings
coacting with said magnetic field member, wherein at least one of
said magnetic field member and said windings produces heat; and
a helical cooling coil defining a fluid conduit arranged
adjacent said magnetic field member for removing said heat,
wherein said wall portion is disposed between said coil and
said windings with said coils secured to said wall portion with a
mechanical fastening element.
In addition to the admitted prior art, the examiner relies
upon the following references as evidence of obviousness:
Litton 2,362,911 Nov. 14, 1944
Schade Jr. (Schade) 3,554,275 Jan. 12, 1971
Appellant's claimed invention is directed to a cooling
assembly for an electromechanical device, such as a generator or
electric motor. The assembly comprises a helical cooling coil
that is adjacent to a magnetic field member disposed within the
housing of the assembly. According to appellant, use of the
claimed cooling coil results in a cost savings in the amount of
stainless steel used relative to the cooling chamber of the
admitted prior art. Appellant explains that "[b]y utilizing the
helical coils of the present invention, the large stainless steel
housing and external wall of the prior art may be eliminated
thereby reducing the overall cost of the electromechanical
device" (page 4 of principal brief, third paragraph).
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