Back to results
US 8,465,334 B2Granted
Fin box
AssigneeOrigin Fin Systems Pty Ltd.
InventorsMichael John Hort, Eric John Wolinski, David John Russell Wood
Life of this patent
Estimating the term…
Abstract
The present invention relates to a fin box adapted to be fitted to a watercraft and to receive a fin having a base. The fin box includes an elongate receiving portion having a length. The base is adapted to be inserted into the receiving portion substantially laterally. The fin during insertion into the receiving portion is disposed at a lower than 90 degree angle to the receiving portion.
Claims24
A fin system comprising:
- a fin box securable to a watercraft and a fin, the fin box including:
- a receiving portion having opposing first and second fin box side walls and an opening;
- and
- at least one protrusion extending from the first fin box side wall;
- and
- a fin including:
- a body having a leading edge, a trailing edge, a first side face and a second side face in opposition to the first side face, the first and second side faces extending between the leading and trailing edges;
- and
- a base mounting portion having a first side having a at least one slot and an opposing second side,
- wherein the base mounting portion is insertable into the receiving portion in a first position in which the at least one protrusion is located adjacent to the at least one slot and the body is angularly inclined relative to a plane passing across the opening of the receiving portion, and
- wherein the body is pivotable to a second position in which the at least one protrusion is located in the at least one slot and the body is generally perpendicular to the plane passing across the opening of the receiving portion.
8 more elements
A fin comprising:
- a body;
- and
- a base portion, the base portion being removably received in a fin box mounted to an underside of a watercraft, wherein a fillet extends between the base portion and the body around an entire perimeter of the body, the fillet providing a transition between the underside of the watercraft and the body, such that a tangent of the fillet at an edge of the base portion is substantially coincident with an adjacent underside region of the watercraft, wherein an underside of the base portion of the fin is cored out to provide a hollow for receiving a removable stiffening element for controlling a lateral stiffness of the fin.
Dependencies are inferred from the claim text.