Patent ID: 8079353
Filing Date: 2011-12-20
Classification: A63B,F41B

Abstract:
1. An archery bow having a frame comprising a riser portion with opposite ends, and first and second limb portions extending, respectively, from said opposite ends, wherein said frame has a longitudinal axis; wherein at least one of said portions comprises at least two hollow tubes, each of said two tubes having a length, the tubes having facing surfaces and non-facing surfaces along their length; wherein portions of said tubes have generally flat facing surfaces which are fused together along fused portions to form an integral interior wall of the one said portion, and wherein non-facing surfaces of said fused portions form external surfaces of said fused portions; wherein, in said fused portions, the external surface of one tube adjoins the external surface of the other tube on opposite sides of said portion to define a hollow interior of the bow such that said interior wall extends from adjoining external surfaces of said hollow tubes on one side of said portion, through the hollow interior of said portion, to adjoining exterior surfaces of said hollow tubes on an opposite side of said portion; wherein said tubes are separated from one another at one or more locations between fused portions such that facing surfaces of said tubes at the separated locations define one or more ports which extend through the frame in a direction at least generally perpendicular to the length of the tubes, the ports being defined by separated, facing surfaces of the tubes, wherein said ports are formed without forming holes through either tube; and wherein the tubes comprise a composite material including a plurality of fiber layers, the composite material extending continuously along said fused portions and the one or more locations at which the tubes are separated to form one or more ports.