Appeal No. 1998-1357
Application No. 08/348,744
in appellants' claim 141 on appeal. Since Kettlewell "relates
to insulating means for heated bodies, such as tanks,
furnaces, boilers and other heated surfaces" (page 1, col. 1,
lines 1-3), we are of the view that one of ordinary skill in
this art would have recognized that "pipe fittings" secured to
the inner tank would have been necessary for the entry and
removal of liquid material into and out of the cylindrical
metal body or inner
tank 10. We have seen that Lindquist discloses a two layer,
above ground storage tank for storing flammable liquids, and
also note that Lindquist shows various pipe fittings 16
secured to inner tank 4 which provide access to the inside of
the inner
tank 4.
In this instance, we agree with the examiner when he
concludes that:
[i]t would have been obvious to one of ordinary
skill in the art to have employed the pipe fitting
teaching set forth in Lindquist, et. al. in the
construction of the device of Kettlewell, motivated
by the intended use. Note col. 1, first paragraph
of Kettlewell (answer, page 5).
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