Swimming flipper
AssigneeTechnisub S.p.A.
InventorFerraro Paolo
Life of this patent
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Abstract
Swimming flipper (1) comprising a flexible but relatively rigid blade (3) and a relatively soft shoe (2) associated to one end of the blade. The blade (3) has an active portion (5) formed by at least two relatively rigid thermoplastic materials (5a, 5b) joined to each other and of which the second (5b) occupies a central area of the said active portion (5) in which the first material (5a) is absent. Such a central area has a width comprised between 5 and 95% of the active portion (5) of the blade (3). (FIG. 1)
Claims10
Swimming flipper comprising a flexible but relatively rigid blade and a relatively soft shoe associated to one end of the blade, wherein the blade, in an undeformed condition, has a substantially planar active portion formed by at least two materials of which the first is a relatively rigid and inextensible thermoplastic material and the second occupies areas wherein said active portion of the blade is devoid of the first material, wherein the second material is also a relatively rigid and inextensible thermoplastic material and occupies a central area of the active portion of the blade having a width comprised between 5 and 95% of said active portion, and wherein the two thermoplastic materials are rigidly joined to each other by chemical-thermal adhesion along the edges of said area.
Dependencies are inferred from the claim text.