Vibration damped ski

Details Vibration damped ski Vibration damped ski

1979-07-16

1981-10-06

Silverstrim, John P.

Land vehicles

Skates

Runner type

A63C 512

Patent

active

042931428

ABSTRACT:
The core of a ski includes a layer of viscoelastic material positioned at the neutral axis thereof at every point therealong. An upper constraining layer is positioned above the viscoelastic material, and a lower constraining layer is positioned below the viscoelastic material. The core also includes an upper layer of low modulus of elasticity material placed above the upper constraining layer and a lower layer of low modulus of elasticity material placed below the lower constraining layer. A torsion box member constructed of high modulus of elasticity material surrounds the core to serve as the primary load carrying structural member of the ski. A cosmetic top layer is disposed above the box member while a bottom or running surface is disposed below the box member.

REFERENCES:
patent: 2995379 (1961-08-01), Head
patent: 3372943 (1968-03-01), Grossauer
patent: 3393918 (1968-07-01), Styka
patent: 3398968 (1968-08-01), Mutzhas
patent: 3414279 (1968-12-01), Allain
patent: 3537717 (1970-11-01), Caldwell
patent: 3612556 (1971-10-01), Seawell
patent: 3635482 (1972-01-01), Holman
patent: 3635483 (1972-01-01), Barriball et al.
patent: 3698731 (1972-10-01), Jost et al.
patent: 3844576 (1974-10-01), Schultes
patent: 3861699 (1975-01-01), Molnar
patent: 3901522 (1975-08-01), Boehm
patent: 4071264 (1978-01-01), Legrand et al.

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