Pipes and tubular conduits – With closures and plugs – Inflation stem type
Patent
1985-04-15
1988-06-14
Foster, Jimmy G.
Pipes and tubular conduits
With closures and plugs
Inflation stem type
29450, 29517, 138109, 150 55, 220320, 229 57, 285423, B65D 4532, F16L 2108
Patent
active
047505257
ABSTRACT:
The ends of flexible plastic tubes, particularly of relatively thin thickness, are closed with a cylindrical header or end plug over which an end of the plastic tube is fitted. A fluids connection between the wall of the plastic tube and the cylindrical header or plug is made by press fitting over the connection area a plastic ring smaller in diameter than the outside diameter of the plastic tube within the elastic limit of the plastic ring. Preferably the header and/or end plug have circumferential grooves or depressions into which groove or depression the wall of the tube is fitted or depressed, preferably by multi-turns of plastic threads. For corrosive and oxidizing environments the header, plug, plastic tube, sealing rings and depressing thread are composed of perfluorocarbon polymers.
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