Stock material or miscellaneous articles – Structurally defined web or sheet – Honeycomb-like
Patent
1989-09-12
1992-01-14
Epstein, Henry F.
Stock material or miscellaneous articles
Structurally defined web or sheet
Honeycomb-like
55523, 428188, 502527, B32B 312
Patent
active
050809539
ABSTRACT:
A ceramic honeycomb structural body for catalytic converters and filters for removing fine particles can be provided which is secured firmly in the catalytic converters with high reliability, minimum volume and small strength to external pressure without displacements and breakage thereof and a loss of expensive noble metals, by forming at least one step on the outer circumferential surface of the honeycomb structural body so as to form at lesat one recessed portion or protruded portion on the outer circumferential surface; the recessed portion or the protruded portion has a rough surface or is formed discontinuously to afford firm and safe holding of the ceramic honeycomb structural body in the vessel of the catalytic converter via a sealing member and/or a cushioning member.
REFERENCES:
patent: 3887741 (1975-06-01), Dwyer
patent: 3941157 (1976-03-01), Barnett
patent: 3983283 (1976-09-01), Bagley
patent: 4451517 (1984-05-01), Inoguchi et al.
patent: 4619912 (1986-10-01), Jalbing et al.
patent: 4869944 (1989-09-01), Harada et al.
patent: 4988483 (1991-01-01), Usui et al.
Horikawa Osamu
Ikeshima Koichi
Epstein Henry F.
NGK Insulators Ltd.
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