Thermoplastic tube

Details Thermoplastic tube Thermoplastic tube

1996-03-05

1998-03-31

Michl, Paul R.

Pipes and tubular conduits

Flexible

1381181, 138141, 138DIG7, 138DIG8, 428 343, 428 369, 428 3691, F16L 1100

Patent

active

057327459

ABSTRACT:
A thermoplastic tube for in-field storage or packaging of bales of agricultural products is disclosed. The tube combines high puncture resistance with an exceptional stretchability, elasticity and good slip properties. The circumference of the tube can be expanded by at least 15% without tearing when stretched in the transverse direction. The tube also shows no substantial permanent deformation 2 hours after being so stretched for a period of time not exceeding 30 minutes and released. Before feeding a bale, the tube is stretched radially to facilitate the insertion and accommodate bales larger than original diameter of the tube. When regaining the original size, the tube wraps up tightly the bales reducing the amount of air trapped in the tube. Since the tube can be enlarged to a variable extent, it may accommodate bales of different shapes and sizes.

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