Appeal No. 2001-0305 Page 4
Application No. 09/077,356
portion 92 having a first end (fluted valve guide 93) and a
second end having an orifice (blind bore 95) suitably sized to
receive the pin 94 of the valve tip 90 by a press fit (col. 6,
lines 54-56). The examiner has determined that the only
difference between Ament's valve and the subject matter of
claim 9 is that Ament does not show the blind bore (orifice)
having at least 2 successive areas of different diameters and
appellant does not appear to challenge that determination. It
is the examiner's position that the Soviet patent would have
suggested providing the blind bore 95 and valve tip pin 94 of
Ament with grooves and shoulders (answer, p. 4).
The Soviet patent is directed to a non-detachable
interference fit coupling, produced under the influence of
temperature on the parts to be joined, for joining pipes or
rods using connecting pieces, locking parts and other
connecting parts (translation, p. 1). The coupling disclosed
in the Soviet document includes a female part 1 provided with
grooves 3 on the interior surface 2 thereof and a male part 4
provided with projections 6 on the exterior surface 5 thereof.
The process of joining the parts 1 and 4 is carried out by
heating the female part 1 to a preselected temperature to
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