Patent ID: 6585548
Filing Date: 2003-07-01
Classification: A63B,B63B,B63H,C21D,C22F

Abstract:
A hydrofoil, comprising:(a) a thermoplastic pivoting blade region hinged to a predetermined body with a flexible joint element, said thermoplastic pivoting blade region having an originating portion adjacent to said predetermined body and a forward portion spaced from said originating portion and said predetermined body, said flexible joint element being a region of increased flexibility disposed within said hydrofoil at a location that is adjacent to said originating portion of said pivoting blade region, said region of increased flexibility permitting said pivoting blade region to pivot around a transverse axis that is located adjacent to said originating portion; (b) a movable thermoplastic element connected to a load bearing structure and to said thermoplastic pivoting blade region, said load bearing structure being connected to said predetermined body; and (c) said movable thermoplastic element being connected to said thermoplastic pivoting blade region with a chemical bond created during injection molding.