Appeal No. 2005-0067
Application No. 08/853,842
preform insulating end cone is placed
on a level surface prior to
disposition of said preform
insulating end cone between the inner
and outer end cone housings.
18. A preform insulating end cone suitable for
disposition between inner and outer end cone housings
in an inlet or outlet cone assembly of a pollution
control device, said preform insulating end cone
comprising:
(i) a cone shaped intumescent or non-intumescent
sheet material having a first end and a
second end; and
(ii) a shape retaining element that is an
adhesive tape in intimate contact with said
sheet material to connect said first end and
second end to impart a cone shape to said
sheet material, said shape retaining element
enabling said sheet material to maintain a
self-supporting cone shape when said preform
insulating end cone is placed on a level
surface prior to disposition of said preform
insulating end cone between the inner and
outer end cone housings.
The examiner relies on the following prior art references
as evidence of unpatentability:
Corn 5,332,609 Jul. 26, 1994
Kitamura et al. JP 61-89916 May 08, 1986
(JP ’916)(published
JP application)
Brich P 34 32 283.3 Mar. 13, 1986
(DE ’283)(published
German application)
Worner et al. DE 3700070 A1 Jul. 14, 1988
(DE ’070)(published
German application)
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