Anti-ventilation device for sailboards
AssigneesEric Edgar Voight, William K. Winner
InventorWilliam K. Winner
Life of this patent
Estimating the term…
Abstract
A sailboard or surfboard (30) having a fin (32) and a skirt (36) extending aft of the tail edge (34) of the board. The skirt (36) is mounted to the sailboard in a manner so that the skirt assumes the contour of the water when sailed. Adhesive or a clamp plate is utilized to secure the skirt (36) to the board (30). The fin (32) includes a fin base (60) and a foil (62). Foil (62) is positioned aft of the fin base (60) so that the trailing edge (64) of the foil (62) is aft of the fin base (60).
Claims12
A sailboard comprising
- a hull having a tail section, the tail section having a tail edge,
- a fin mounted to the bottom of the hull at the tail section, and a skirt extending aft of the tail section, wherein the skirt is flexible so that it assumes the contour of the water line as the pitch of the sailboard changes as the sailboard bounces across the water, and wherein the skirt has sufficient strength to prevent ventilation in the region of the fin.
A fin for use with a sailboard having a skirt extending from the tail edge of the sailboard, the sailboard including a fin box for mounting the fin to the sailboard, the fin comprising
- a fin base, and
- an entirely rigid foil;
- the foil being off-set with respect to the fin base so that the trailing edge of the root of the foil is positioned aft of the fin base.
A surfboard comprising
- a hull,
- a foil extending downwardly from the hull, and
- a skirt mounted to the hull adjacent to the foil, the skirt extending laterally from the foil in a manner so as to prevent ventilation in the region of the foil, wherein the skirt has sufficient flexibility so that the skirt assumes the contour of the water when the surfboard is used.
Dependencies are inferred from the claim text.