Appeal 2007-0022
Application 10/148,935
methods of joining could also be used, such as bonding.
As shown, the discs 71 can have radiused or chamfered
outer diameter corners 74 to facilitate the joining process
by leaving room for the welding, brazing or soldering,
but these discs 71 are no "constant stress" design discs.
The radiused or chamfered outer diameter corners 74 also
allows the outer diameter of the assembled flywheel 70 to
be machined or ground to final dimension without un-
joining the discs 71. If the outer diameter is not going to
be ground, the corners can alternatively be left sharp.
(Specification 8: 30 – 9: 7).
20. The Specification further discloses
Another method of joining the discs is to put axial
joining layers between the discs, as shown in Fig. 12, to
produce an axially joined axially stacked disc flywheel
80. The flywheel 80 is constructed of multiple stacked
discs 81 and in most cases, shafts 82 and end plates 83.
In this configuration, the discs 81 are joined axially by
preferably brazing, soldiering [sic] or use of an adhesive.
Other methods of joining may also be used. A final
machining or grinding can be accomplished if desired
without separating the discs 81. (Specification 9: 19-24).
21. Claims 14 and 18, as now pending, are identical to original claims 14
and 18, and thus also form part of the original disclosure.
22. Based on this disclosure, one skilled in the pertinent art at the time of
the invention would have known how to weld, braze, solder, bond, or otherwise
join the disclosed steel discs to form a flywheel such that the diameter of the
connection between the discs is greater than 80% of the outside diameter of the
flywheel.
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