Pipes and tubular conduits – Spirally seamed
Patent
1978-10-10
1980-06-24
Aegerter, Richard E.
Pipes and tubular conduits
Spirally seamed
138122, 138129, 138135, 138148, 138154, 428121, 428192, 156187, F16L 916
Patent
active
042090431
ABSTRACT:
The formation of articles using an elongated strip which has on it a series of longitudinally positioned upstanding ribs to form between them a series of longitudinally positioned channels and including connectors, on the strip spaced apart transversely on the strip whereby the strip can be wound helically to form an elongated object with the connectors interengated along a helical line to lock the strip in object form.
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Aegerter Richard E.
Bryant III James E.
Peterson Gordon L.
Rib Loc (Hong Kong) Ltd.
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