Appeal No. 2002-0354 Page 2
Application No. 09/293,455
The appellant's electric motor (14) includes an armature shaft (42), which is
retained at one end by a retainer (100). Figure 2 of his specification shows that the
retainer (100) fits within an enlarged portion (84) of a central bore (82) of a bearing (80).
More specifically, the retainer (100) seats on a shoulder (86) of the bearing to register
the bearing (80) and a commutator (50).
A further understanding of the invention can be achieved by reading the following
claim.
1. An armature shaft comprising:
a shaft having two ends;
a commutator on said shaft;
at least one bearing on said shaft, said bearing adjacent one of
said ends of said shaft, said bearing having a central bore sized to
support said shaft during rotation, said central bore having an enlarged
portion opening towards said one end of said shaft; and
a retainer on said shaft for retaining said bearing on said shaft, said
retainer positioned within said enlarged bore portion of said bearing.
Claims 1-4, 7-11, 14-18, and 21 stand rejected under 35 U.S.C. § 103(a) as
obvious over U.S. Patent No. 3,624,434 (“Dafler”) and U.S. Patent No. 4,801,252
(“Wrobel”). Claims 6, 13, and 20 stand rejected under § 103(a) as obvious over Dafler,
Wrobel, and U.S. Patent No. 3,829,722 (“Rosenthal”).
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