Pollution control device and inorganic fiber sheet material with a fused edge
Assignee3M Innovative Properties Company
InventorRichard P. Merry
Life of this patent
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Abstract
Inorganic fiber mounting and insulating sheet materials for use in pollution control devices with at least one edge of the inorganic fiber sheet material having at least one group of two or more fibers fused together. A pollution control device comprising such a sheet material. A process for cutting at least one section from a sheet containing inorganic fiber material, where the sheet material is suitable for use in a pollution control device. The fibrous sheet material is cut so that the cut edge has at least one group of two or more fibers fused together. A laser beam can be used to cut the desired section out of the inorganic fiber sheet material.
Claims20
A mat suitable for use in a housing of a pollution control device, said mat comprising an inorganic fiber material section having opposite major outer surfaces and at least one edge, with only said at least one edge having fibers either fused together so as to reduce the erosion rate of said at least one edge, fused together so as to at least partially seal said mat so as to reduce the amount of entrapped dust leaving, said mat when handled or both,
- wherein said mat is either a mounting mat suitable for mounting a pollution control element in a housing of a pollution control device or an end-cone insulation mat adapted to be disposed in a gap between inner and outer end-cone sections of a pollution control device housing.
Dependencies are inferred from the claim text.