Patent ID: 8092882

Claim:
A structural member to manufacture a sports equipment, in particular tennis, squash, badminton racquets, golf clubs, field hockey and ice hockey sticks and baseball bats, having two separate and discrete hollow cylindrical resonating elements arranged in parallel and having outer and inner surfaces that are each continuously convexly curved in a latitudinal cross section thereof, spaced at a distance from one another by a separate member and enclosed by a common covering with nothing interposed between the common covering and the hollow cylindrical resonating elements, and with said separate member comprising a distancing element disposed between the resonating elements, characterized in that the mass of each resonating element is greater than the mass of the distancing element, that the compressive strength of the distancing element is the highest in the direction of an axis that connects the center points of the resonating elements, and wherein the distancing element includes opposed concave ends that are conterminous with each of the respective curved outer surfaces of the resonating elements.