Appeal No. 97-0894
Application 08/069,931
Thus, such a manufacturing approach would have been obviously
suggested to the artisan to use to manufacture the bobbin 52.
The examiner’s position also correctly recognizes that
Tomczak fails to disclose that the plastic bobbin 52 is filled
with a weakly magnetizable material. As evidence of obviousness
in the art, the examiner points to Mueller as suggesting such in
the fabrication of his electronic proximity switch coil bobbin
29, which is taught to be made out of synthetic resin. As
indicated at the end of the abstract in this reference, in the
paragraph bridging columns 1 and 2, as well as in the paragraph
bridging columns 3 and 4, the examiner notes that the teaching at
these locations is to enrich the synthetic resin formed coil
bobbin 29 with a “pulverulent permeable material 34" in Figure 5
“whereby the inductance of the resonant circuit coil 16 is
increased.”
It is this approach which allows Mueller’s invention to
fulfill the manufacturing advantages of the invention as set
forth beginning at column 2, line 3 of Mueller. As such, we
agree with the examiner’s observation that it would have been
obvious for the artisan to have utilized this manufacturing
technique in Mueller to manufacture the coil body/bobbin 52 in
Tomczak.
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