End closure for flexible plastic tubes

Abstract From the Canadian patent

The ends of flexible plastic tubes particularly, of relatively thin wall 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 thread. For corrosive and oxidizing environments the …