Laminated water ski

Claim 2

A ski comprising: a. oppositely disposed top and bottom skins each having side edges; b. buoyant core element means positioned between said top and bottom skins defining a peripheral recess between said skins; c. a rubber edging member positioned within said peripheral recess between said top and bottom skins, said edging member having an outer portion covering said side edges and a deep groove formed in an inner surface thereof facing said core element means; and d. adhesive bonding means filling and adhering to said groove to provide two shear surfaces for dampening ski vibrations and for affixing said edging member to said skins and said core element.

Claim 3

The ski of claim 1 wherein said edging member includes an outer surface extending between and covering the edges of said top and bottom skins, said outer surface having a slightly convex shape with respect to the ski, a rounded upper corner and a sharp separation corner at the bottom.

Claim 4

a plurality of generally vertical support members extending between said surfaces so as to define a plurality of longitudinally extending tunnels in said core; c. said skins being larger than said core element to define a recess between said skins extending about the periphery of said core element, the outer tunnels of said core element being open to said recess; d. a buoyant, generally rigid material positioned within each of said plurality of tunnels; e. a fiberglass strip bonded to said core element and said outermost tunnel filling material in said recess; f. a resilient edging member mounted within said recess having an essentially horizontal, deep groove in an inner surface thereof and an outer surface extending convexly between said skins, covering said edges thereof; and g. an adhesive resin material for affixing said edging member to said skins and said fiberglass strips and for filling said groove in said inner edging surface.

Claim 5

a plurality of generally vertical support members extending between said surfaces so as to define a plurality of longitudinally extending tunnels in said core; c. said skins being larger than said core element to define a recess between said skins extending about the periphery of said core element, the outer tunnels of said core element being open to said recess; d. a buoyant, generally rigid material positioned within each of said plurality of tunnels; e. a fiberglass strip bonded to said core element and said outermost tunnel filling material in said recess; f. a resilient edging member mounted within said recess having an essentially horizontal, deep groove in an inner surface thereof and an outer surface extending convexly between said skins, covering said edges thereof; and g. an adhesive resin material for affixing said edging member to said skins and said fiberglass strips and for filling said groove in said inner edging surface.

Claim 6

A ski comprising: a. oppositely disposed top and bottom skin layers each having a pEripheral edge; b. a core element positioned between said top and bottom skin layers, said core element having a plurality of laterally spaced, longitudinally extending tunnels therein and defining a recess between said skin layers extending about a substantial portion of the periphery thereof; c. a buoyant, generally rigid material positioned within each of said plurality of tunnels; d. a rubber-like edging member having an inner portion positioned within said peripheral recess and an outer portion extending between said top and bottom skin layers, covering said peripheral edges; said inner portion defining a deep groove extending along the inner surface thereof; and e. adhesive bonding means for affixing said edging member to said skin layers and said core element and for substantially filling said groove along said inner surface of said inner edging portion to thereby provide with the sides of said groove two shear surfaces for dampening ski vibrations.

Claim 7

A ski comprising: a. oppositely disposed top and bottom skin layers each having a pEripheral edge; b. a core element positioned between said top and bottom skin layers, said core element having a plurality of laterally spaced, longitudinally extending tunnels therein and defining a recess between said skin layers extending about a substantial portion of the periphery thereof; c. a buoyant, generally rigid material positioned within each of said plurality of tunnels; d. a rubber-like edging member having an inner portion positioned within said peripheral recess and an outer portion extending between said top and bottom skin layers, covering said peripheral edges; said inner portion defining a deep groove extending along the inner surface thereof; and e. adhesive bonding means for affixing said edging member to said skin layers and said core element and for substantially filling said groove along said inner surface of said inner edging portion to thereby provide with the sides of said groove two shear surfaces for dampening ski vibrations.

Claim 8

A water ski comprising: a. oppositely disposed, generally horizontal top and bottom skins each having a peripheral edge, said skins being formed from a plurality of unidirectional fiberglass layers of generally equal thickness extending alternately longitudinally and transversely with respect to the ski; b. a core element positioned between said top and bottom skins, said core element including:

Claim 9

A water ski comprising: a. oppositely disposed, generally horizontal top and bottom skins each having a peripheral edge, said skins being formed from a plurality of unidirectional fiberglass layers of generally equal thickness extending alternately longitudinally and transversely with respect to the ski; b. a core element positioned between said top and bottom skins, said core element including:

Claim 10

The ski of claim 4 wherein: a. said core element is extruded from an acrylonitrile-butadiene-styrene resin; and b. the material positioned within the two outermost ones of said plurality of tunnels is a polyvinyl chloride material and the material positioned within the remaining inner tunnels of said plurality is a polyurethane material.