Appeal No. 2000-0181
Application No. 08/929,287
do not fully know how the brake operates to automatically
limit the rotational speed (page 2, lines 13 to 19, supra).
However, although appellants do not know precisely why the
brake operates as it does, they have provided in the
specification a detailed description of the structure of the
brake and its associated apparatus, including the material of
the surfaces constituting the brake (PTFE or comparable), the
dimensions of the washer 25, angular ranges for the axes of
the bores 31 and the turbine grooves 14, etc. The examiner
states that experimentation would be required to find the
proper angles,
8
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