Coverbraided rope for pelagic trawls
AssigneeHampldjan, hf
InventorSherif Adham Safwat
Life of this patent
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Abstract
A rope has a braided sheath that includes a spiraling strand having a greater pitch in comparison with a pitch exhibited by other strands of a coverbraid that encloses that rope's strength member core. The rope is useful for forming pelagic trawl mesh, and stronger for a given amount of material, as less drag, and exhibits the same or bettered lift when towed through water at trawl mesh angles of attack. The rope also is less costly to manufacture in comparison to known helix rope constructions.
Claims21
1-21. (canceled)
An improved rope (35) for forming portions of a trawl, the rope including at least one strength member (37), at least a braided sheath (398) formed about and enclosing the strength member (37), and at least one spiraling strand (85) included among the strands (397) forming the braided sheath (398) where such spiraling strand (36) is larger in diameter than other strands (397) forming at least portions of the braided. sheath (398), the rope characterized by an amount of advance of the spiraling strand (36) in one turn about the strength member core (37) differing from an amount of advance of a strand (397) in one turn about the strength member core (37).
The rope of claim 2 wherein the strand is a preformed strand.
A process for forming an improved rope (35) for forming portions of a trawl, the rope including at least one strength member (37), at least a braided sheath (398) formed about and enclosing the strength member (37), and at least one spiraling strand (36) included among the strands (397) forming the braided sheath (398), where such spiraling strand (36) is larger in diameter than other strands (397) forming at least portions of the braided sheath (398), the process comprising a step of selecting an amount of advance for the spiraling strand (36) in one turn about the strength member core (37) different in comparison to an amount of advance selected for a strand (397) in one turn about the strength member core (37).
Dependencies are inferred from the claim text.