Helical wound flexible torque transmission cable
OwnerChris S. Funke, Jr.inventor
Life of this patent
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Abstract
A cable adapted to transmit torque in rigging or furling a sail of a boat includes a core having at least one termination end and a bight, and at least one layer of fiber wound around the core, wherein a fiber in a portion of the fiber layer disposed over a center portion of the bight has a first pitch angle relative to a longitudinal axis of the core and wherein a fiber in a portion of the fiber layer disposed over the at least one termination end has a second pitch angle relative to the longitudinal axis of the core. The fiber layer includes a transition zone disposed between the at least one termination end and the center portion, wherein a fiber in the transition zone has an orientation that transitions from the first pitch angle to the second pitch angle.
Claims9
A cable adapted to transmit torque in rigging or furling a sail, said cable comprising:
- a core having at least one termination end and a bight;
- and
- at least one layer of fiber wound around said core;
- wherein a fiber in a portion of said fiber layer disposed over a center portion of said bight has a first pitch angle relative to a longitudinal axis of said core;
- wherein a fiber in a portion of said fiber layer disposed over said at least one termination end has a second pitch angle relative to said longitudinal axis of said core;
- wherein said fiber layer comprises a transition zone disposed between said at least one termination end and said center portion of said bight, wherein fiber in said transition zone has an orientation that transitions from said first pitch angle to said second pitch angle;
- wherein said core comprises a groove at said termination end, said groove securing said fiber layer to said core such that said fiber in said portion of said fiber layer disposed over said termination end is secured at the second pitch angle;
- wherein said core has a first diameter along said bight and a second diameter at said termination end proximate to said groove, said second diameter being greater than said first diameter;
- and
- wherein at least said fiber layer disposed within said groove is impregnated with resin.
Dependencies are inferred from the claim text.