Improved umbrella

A - Human Necessities – 45 – B

Patent

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Details

A45B 25/22 (2006.01) A45B 11/00 (2006.01)

Patent

CA 2593627

Umbrellas with improvements that make the umbrella easier to control. The improvements include an edge of the umbrella canopy that presents a convex surface to the flow of air across the canopy and that also may direct the flow of air away from the underside of the canopy and away from the user of the umbrella, gutters for directing the flow of water on the canopy, spoilers for modifying the flow of air across the canopy, windsocks that release air pressure under the canopy by inflating, and canopies with streamlined shapes, including shapes that may be modified by the user or modify themselves in response to the flow of air.

L'invention concerne des améliorations qui permettent de commander plus facilement un parapluie. Les améliorations portent sur un bord de couverture du parapluie qui présente une surface convexe pour flux d'air, ménagée sur la couverture et qui peut aussi diriger le flux d'air de manière à l'éloigner du dessous de la couverture et de l'utilisateur du parapluie, des rainures pour diriger les flux d'eau sur la couverture, des déflecteurs pour modifier l'écoulement d'air à travers la couverture, des manches à air qui soulagent la pression d'air sous la couverture par le gonflage, et des couvertures possédant des formes aérodynamiques, y compris des formes qui peuvent être modifiées par l'utilisateur ou être modifiées en réponse à l'écoulement du flux d'air.

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