Back to results
US 5,393,499 AGranted
Heated cellular substrates
AssigneeCorning Incorporated
InventorsRodney D. Bagley, Gaylord L. Francis, Andrew Herczog
Life of this patent
Estimating the term…
Abstract
This invention relates to a resistive heating device. In particular, it relates to an exhaust gas apparatus useful for achieving early light-off of catalytic converters comprising a cellular substrate having a layer of conductive material formed thereon and means for activating the device by passing electric current or by exposing the device to an electromagnetic energy field.
Claims23
A resistive heating device comprising:
- a cellular substrate having inlet and outlet end faces, and a matrix of cell walls defining a plurality of cells or passageways extending longitudinally and mutually parallel therethrough between the inlet and outlet end faces;
- a continuous layer of electrically conductive material formed on the cell walls on the inlet end portion of the substrate such that the layer of conductive material is an integral part of the substrate;
- catalyst formed on the substrate;
- and
- an activating device selected from the group consisting of an electrical switch and an electromagnetic energy generator.
2 more elements
Dependencies are inferred from the claim text.