Pipes and tubular conduits – Spirally seamed
Patent
1983-04-11
1988-12-20
Bryant, III, James E.
Pipes and tubular conduits
Spirally seamed
138129, 138122, 138DIG3, 174110FC, F16L 1112
Patent
active
047919663
ABSTRACT:
A ribbon, preferably made of polytetrafluoroethylene and preferably in an unsintered configuration but having lens or trapezoidal cross section is used for wrapping elongated stock such as electrical conductors, tubes, or a removable mandrel, the wrapping to be made with overlapping edges followed by fusion to obtain a coherent tubular configuration.
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Bryant III James E.
HEW-Kabel Heinz Eilentropp KG
Siegemund Ralf H.
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