Stock material or miscellaneous articles – All metal or with adjacent metals – Plural layers discontinuously bonded
Patent
1978-06-26
1980-09-09
Hunt, Brooks H.
Stock material or miscellaneous articles
All metal or with adjacent metals
Plural layers discontinuously bonded
428592, 428126, 428128, 29455R, H04R 3100
Patent
active
042218438
ABSTRACT:
A generally elliptical cylindrical metal substrate, and a method of construction thereof. A plate mandrel having a generally rectangular cross section is provided, and a first end of a web of metal substrate material is affixed to the plate mandrel. The metal substrate material preferably comprises alternate layers of planar metal foil and corrugated metal foil. As an alternative, a corrugated metal foil may be substituted for the planar foil. The metal substrate material web is wrapped around the mandrel, as by rotation of the mandrel while the web is fed off of a spool, until a substantially uniform thickness of metal substrate surrounding the mandrel is provided, a generally elliptical cylinder being formed. A second end of the web is affixed to a previous wrapping, thus forming a complete elliptical cylindrical metal substrate. The metal substrate is preferably catalyzed and used as a catalytic muffler or the like.
REFERENCES:
patent: 2392989 (1946-01-01), Kliewer, Sr.
patent: 3086625 (1963-04-01), Wyatt
patent: 3100140 (1963-08-01), Ashley et al.
Hunt Brooks H.
Matthey Bishop, Inc.
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