Patent ID: 7655194

Claim:
A catalyst substrate support comprising: a continuous spirally wound rounded cross-section corrugated foil honeycomb matrix having an axis and defining a plurality of passages therethrough which are generally parallel to said axis and extend between opposite end faces of said matrix, the matrix having an outer diameter; a peripheral mantle extending about an outer perimeter of said matrix, said peripheral mantle having inwardly extending flanges which extend across an outer periphery of said opposite end faces to cover outermost of said passages and restrict fluid flow between said peripheral mantle and said matrix, the peripheral mantle having an inner wall defining an inner diameter of the mantle; wherein the outer diameter of the matrix is less than the inner diameter of the peripheral mantle to leave a circumferentially extending void therebetween extending between the end faces of the matrix to accommodate different thermal expansions of said matrix and said peripheral mantle; at least one cross member extending across an end face of the matrix; said matrix having a slot in said end face extending substantially across said end face; and said cross member having a first portion that is received in the slot while allowing the cross member to slide relative to the matrix.