Manufacture of metal tubes
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jun 9, 1992
Issued Date -
N/A
app pub date -
Apr 11, 1991
filing date -
Apr 18, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus for forming metal tubes is shown in which a metal strip 2' having a brazing wire 1 bonded to an edge portion thereof passes through the apparatus and is formed by a combination of rollers 17, 17', 19, 19' and dies 15, 24 into a shape defining a tube. A frictional wheel 27 bonds together the two edge portions of the shape defining a tube.
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