Metal working – Method of mechanical manufacture – Fluid pattern dispersing device making – e.g. – ink jet
Patent
1989-08-23
1990-11-13
Goldberg, Howard N.
Metal working
Method of mechanical manufacture
Fluid pattern dispersing device making, e.g., ink jet
29418, 72148, 502439, 422180, B21D 5300
Patent
active
049692658
ABSTRACT:
A method of producing a metal support for an exhaust gas catalyst. The method comprises the steps of: (a) mating respective end portions of flat and corrugated metal strips in such a manner that respective major portions of the strips extend in opposite directions; (b) putting the mated end portions of the strips between two generally flat holding members; (c) winding the major portions of the flat and corrugated metal strips around the holding members overlapping one on another by a predetermined number of times, thereby to produce an oval structure which includes the flat and corrugated metal strips and the holding members; (d) drawing the holding members from the oval structure thereby to provide a semi-processed oval assembly which has two generally flat bores left therein; and (e) pressing the semi-processed oval assembly in a manner to eliminate the bores thereby to provide a tightly wound oval assembly of the flat and corrugated metal strips.
REFERENCES:
patent: 2721952 (1955-10-01), Kenyon
patent: 4300956 (1981-11-01), Rosenberger et al.
patent: 4318888 (1982-03-01), Chapman et al.
patent: 4598063 (1986-07-01), Retallick
Calsonic Corporation
Cuda I
Goldberg Howard N.
Nissan Motor Co,. Ltd.
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