Pipes and tubular conduits – Combined – With end structure
Patent
1979-03-12
1980-12-09
Bryant, III, James E.
Pipes and tubular conduits
Combined
With end structure
222 92, 206515, 206519, B65D 3500
Patent
active
042379393
ABSTRACT:
A stackable tapered tube body has an annular inwardly directed bead or corrugation in the region of the sealant layer. This provides that the tube bodies do not touch each other directly and that in particular the sealant layer is protected when tube bodies are stacked together.
The beads or corrugations are produced by the tube shell being gripped substantially over its entire periphery, and deformed.
REFERENCES:
patent: 3661301 (1972-05-01), Couland
patent: 3927766 (1975-12-01), Day
Bryant III James E.
H. Obrist & Co. AG
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