B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 3/20 (2006.01) B31C 3/00 (2006.01) B32B 1/08 (2006.01) B65H 75/08 (2006.01) B65H 75/18 (2006.01)
Patent
CA 2601410
A tube having enhanced inner diameter stiffness is provided. The tube includes a wall having an inner zone, intermediate zone, and an outer zone. The intermediate zone includes a plurality of partially offset and overlapped plies that form a number of non-radial spokes and voids extending from the inner zone and the outer zone. The non-radial spokes of the tube facilitate the transmission of torque from the inner zone to the outer zone during winding and handling operations, while insulating the inner diameter from radial pressure on the outer zone. The spokes and voids may essentially extend around the entire circumference and length of the tube and thus provide for more consistent properties throughout the tube.
Il s'agit d'un tube dont la rigidité du diamètre intérieur est améliorée. Ce tube comprend une paroi à zone intérieure, zone intermédiaire et zone extérieure. La zone intermédiaire comprend de multiples couches partiellement décalées et recouvertes qui constituent un certain nombre de rayons non radiaux et de vides dépassant de la zone intérieure et de la zone extérieure. Les rayons non radiaux du tube facilitent la transmission du couple, de la zone intérieure à la zone extérieure, lors des opérations d'enroulement et de manutention, en isolant le diamètre intérieur de la pression radiale exercée sur la zone extérieure. Les rayons et les vides peuvent s'étendre principalement sur toute la circonférence du tube, et donc assurer des propriétés plus sûres à tout le tube.
Sim & Mcburney
Sonoco Development Inc.
LandOfFree
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