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US 5,632,961 AGranted
Reinforcing web for a multicellular converter
AssigneeW. R. Grace & Co.-Conn.
InventorDavid T. Sheller
Life of this patent
Estimating the term…
Abstract
There has been provided an improved reinforcing web for multicellular honeycomb converter core bodies. The reinforcing web contains at least one flat thin metal strip to which is secured at least one corrugated thin metal strip as by brazing or welding. The reinforcing web is located centrally of the core body and gives the converter bodies hereof sufficient axial strength to survive the severe durability tests imposed by the automotive manufacturers.
Claims15
A multicellular honeycomb converter body comprising (a) a tubular housing;
- (b) a plurality of corrugated thin metal strips, said corrugated thin metal strips having corrugations defined by peaks and valleys, (c) a plurality of flat thin metal strips, said flat thin metal strips and said corrugated thin metal strips being in alternating relation forming a stack, said stack being spirally wound and contained in said tubular housing, said corrugated thin metal strips and said flat thin metal strips being precoated with a refractory metal oxide coating, and (d) at least one spirally wound reinforcing web within said stack comprising at least one flat thin metal strip having free distal ends and at least one corrugated thin metal strip having free distal ends and having peaks and valleys, and said at least one flat thin metal strip and said at least one corrugated thin metal strip being free of refractory metal oxide coating, said at least one corrugated thin metal strip being one half the length of said at least one flat thin metal strip and said at least one flat thin metal strip being reversed folded over said at least one corrugated thin metal strip, and said at least one flat thin metal strip and said at least one corrugated thin metal strip of said at least one reinforcing web being disposed in contiguous relation and physically joined to each other by fused metal along the lines of contact, and said reinforcing web having a central portion.
A multicellular honeycomb converter body comprising (a) a tubular housing;
- (b) a stack of corrugated thin metal strips of predetermined length and flat thin metal strips of substantially the same predetermined length, said corrugated and flat thin metal strips being precoated with a refractory metal oxide coating, said stack having a top and a bottom end, said corrugated and flat strips being in alternating relation, said stack being crushed to form a rigid centrally located crushed portion;
- (c) a first reinforcing web within said stack comprising a flat thin metal strip and a corrugated thin metal strip, said flat thin metal strip and said corrugated thin metal strip of said first reinforcing web being free of refractory metal oxide coating and in contiguous relation and secured together along the lines of contact;
- (d) second and third reinforcing webs at each of said top and bottom ends of the stack, each second and third reinforcing web comprising a corrugated thin metal strip having approximately one half said predetermined length and a flat thin metal strip having said predetermined length and being in contiguous superimposed secured relation to each other with a portion of the flat strip of each second and third reinforcing web being uncovered, the uncovered portion of said flat thin metal strip reverse folded over the corrugated thin metal strip of each second and third reinforcing web, said corrugated and flat thin metal strips of each second and third reinforcing web being free of refractory metal oxide coating;
- and (e) said stack being spirally wound about said rigid crushed portion and contained in said tubular housing.
1 more element
Dependencies are inferred from the claim text.