Appeal No. 1997-2426
Application 08/087,849
ferrite cores 18 and 19 together. The Examiner further asserts that since Dowdle has biasing leaf
springs 14 and 15 it would have been obvious for the coil spring of Heilmann to be in the form of a leaf
spring.
The Examiner asserts on page 4 of the answer that with regard to the combination of
teachings of Dowdle with the teachings of Nakano and Heilmann that “[t]he use of a specific type of
spring over the coil spring of Heilmann et al. is considered a matter of design choice.”
Upon review of Nakano, we find that it discloses an electrical noise absorber comprising
case members 2 and 3, which contain ferrite members 5. The ferrite members are acted upon by
biasing members 6 and 7 as shown in col. 2, lines 9 through 16.
Heilmann discloses in col. 2, lines 38 through 54 that helical compression springs 24 and 25
act upon ferrite core halves 18 and 19 so that “these can readily accommodate themselves to each
other when the clip is closed.” The ferrite core halves 18 and 19 are retained by the jaw shells 10
and 11.
Our review further notes that Heilmann states in col. 2 lines 53 to 63 that “[T]he force of the
helical compression springs 24 and 25 is less than that of the tension spring 12. When the front end
15 of the jaw shells 10 and 11 close, the facing surfaces of the ferrite core halves 18 and 19 are
placed one against the other, and the ferrite core halves 18 and 19 are pressed back with their
plastic holders 20 and 21 into the jaw shells 10 and 11 respectively against the force of the
10
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