F - Mech Eng,Light,Heat,Weapons – 01 – N
Patent
F - Mech Eng,Light,Heat,Weapons
01
N
F01N 13/14 (2010.01) B01D 53/94 (2006.01) F01N 3/02 (2006.01) F01N 3/28 (2006.01)
Patent
CA 2290013
The invention provides a preform insulating end cone (30, 60) suitable for forming the end cone of a pollution control device (10), said preform (30, 60) comprising a cone shaped intumescent or non-intumescent sheet material (40) with or without a plurality of splits (49) enabling said sheet material (40) to be cone shaped and a shape retaining element in intimate contact with said intumescent sheet material (40), said shape retaining elements enabling said intumescent sheet material (40) to maintain a cone shape. The invention also provides methods of making preform insulating end cones (30, 60) of the invention.
L'invention porte sur un cône terminal (20, 30) isolant à préformage et approprié pour constituer le cône terminal d'un dispositif antipollution (10). Cette préforme (30, 60) comprend un matériau en feuille (40) intumescent ou non en forme de cône pourvu ou non d'une pluralité de fentes (49) ce qui donne au matériau en feuille (40) sa forme de cône, et un élément retenant la forme venant en contact étroit avec le matériau en feuille (40) intumescent. Les éléments de retenue de forme permettent au matériau en feuille (40) intumescent de conserver sa forme de cône. L'invention concerne également des procédés de fabrication d'un cône terminal (30, 60) isolant à préformage.
Harding Ian R.
Hornback Loyd R. III
Langer Roger L.
Peisert Joseph C.
Sanocki Stephen M.
Minnesota Mining And Manufacturing Company
Smart & Biggar
LandOfFree
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