Patent ID: 7810759
Filing Date: 2010-10-12
Classification: B63H,B64C

Abstract:
1. A tube kite for kite-surfing comprising two front lines attached to a coupling portion and a tug line connected to the coupling portion and being adapted to be releasably secured to the surfer, two back lines adapted to be secured to a bar, and at least one supplementary line which attaches at the tube kite, characterized in that the supplementary line is coupled to the tug line at the coupling portion or between the coupling portion and the bar, and above the bar, such that when tensile forces act on the supplementary line in a flight phase, the supplementary line in addition to the front lines and the back lines stabilizes the geometry of the tube kite in the flight phase, wherein during the flight phase, the tensile forces acting on the supplementary line are introduced into the tug line.