Composite ski pole
OwnerDavid P. Goodeinventor
Life of this patent
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Abstract
A lightweight, flexible ski pole which is virtually indestructible comprises a filament-reinforced, resin-matrix composite shaft having a diameter of about 0.05 in or less and a tensile strength of about 140,000 or higher. The shaft may be severely bent without damage or deformation. A surface coating of acrylic paint is applied by dip coating. A metal tip is adhesively applied, as are hand grip and basket. The shaft may be solid or hollow, straight or tapered near the lower end. If hollow and tapered, the tapered end is reinforced with a short reinforcing rod.
Claims13
A high-tensile strength, lightweight ski pole comprising:
- a shaft;
- a basket mounted adjacent a first lower end of said shaft;
- a tip mounted on said first lower end of said shaft;
- and
- said shaft comprising a filament-reinforced, resin-matrix composite body having a polymeric coating on the outer surface thereof;
- wherein said outer surface coating comprises a sheath of a polymeric material covering said reinforcing filament and embedded in said resin-matrix.
A high-tensile strength, lightweight ski pole comprising:
- a shaft;
- a tip mounted on a first lower end of said shaft;
- and
- a grip mounted on the opposite end of said shaft;
- said shaft comprising a filament reinforced, resin-matrix composite body having a filament-free layer comprising a polymeric coating over the outer surface of said resin-matrix composite body, wherein the outer surface coating comprises polyester layer wrapped about the reinforcing filaments and embedded in the resin matrix.
A ski pole shaft comprising a filament-reinforced, resin-matrix composite body, the shaft having an axial bore over substantially the entire length thereof, the shaft tapered over a minor portion of its length at a first lower end, the tapered first lower end having a variable wall thickness and the axial bore at the first lower end having a substantially constant diameter;
- wherein,
- the ski pole shaft further includes filler means disposed within the axial bore in the tapered first lower end to mate with the axial bore along the tapered first lower end to increase the wall thickness of the tapered first lower end.
Dependencies are inferred from the claim text.