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US 4,708,080 AGranted
Composite thread line sails
AssigneeSobstad Sailmakers, Inc.
InventorPeter G. Conrad
Life of this patent
Estimating the term…
Abstract
Sails made with threads running in the direction of principal stresses in a laminate made of the threads laminated to a film material, such as Mylar.
Claims17
A composite sail having a head, a tack and a clew, which in use and for an intended purpose has principal stress lines, said sail comprised of a plurality of panels, each of said panels joined to an adjacent panel therefor, each of said panels comprised of a laminate of at least two layers whereinbetween said layers nonwoven, force-bearing thread material is predeterminedly disposed along said principal stress lines for said panel in said sail.
Dependencies are inferred from the claim text.