Tarpaulin air vent system

A - Human Necessities – 63 – C

Patent

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Details

A63C 19/12 (2006.01) B65G 3/02 (2006.01) E04D 13/17 (2006.01) E04H 15/00 (2006.01)

Patent

CA 2114824

A tarpaulin covering system for protecting a pile of material having an array of folded tubular vents connected to a tarpaulin to assist a weighting system on the tarpaulin in the prevention of aerodynamic lift. The vents remain in a folded state when the air pressure between the tarpaulin and the pile of material is minimal. During a period of increased air pressure, the vents in the area of increased air pressure open allowing for the escape of the entrapped air. The venting system prevents a protective tarpaulin from being lifted off the surface of the material pile which may cause damage to the tarpaulin resulting in an decrease in the overall integrity of the protective tarpaulin system.

La présente invention fait état d'une bâche servant à recouvrir une pile de matériau. La bâche comporte une série d'évents tubulaires, pliés, destinés à aider un système d'ancrage placé sur la bâche à la maintenir en place malgré les assauts du vent. Les évents demeurent fermés lorsque la pression de l'air entre la bâche et la pile de matériau est à un minimum. Cependant, lorsque la pression de l'air accroît, les évents dans la zone d'accroissement de la pression s'ouvrent afin que l'air emprisonné puisse s'échapper. Le réseau de ventilation empêche la bâche de se soulever de la surface de la pile de matériau, ce qui pourrait endommager la bâche et réduire son niveau de protection.

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