Land vehicles – Skates – Runner type
Reexamination Certificate
2007-07-19
2008-12-23
Ellis, Christopher P (Department: 3618)
Land vehicles
Skates
Runner type
C280S610000, C280S809000
Reexamination Certificate
active
07467806
ABSTRACT:
The present invention relates to lightweight ski systems. One embodiment of the present invention relates to a lightweight ski stability system for improving performance while maintaining lightweight characteristics. The ski stability system includes a ski and one or more weighted members. One weighted member is positioned on the upper surface of the ski within 10 centimeters of the tip contact point. A second optional weighted member is positioned on the upper surface of the ski within 10 centimeters of the tail contact point. The contact points refer to a lengthwise position before the tip or tail laterally curve upward. The weighted members weigh at least 3% of the ski weight. The disposition of these weighted members at one or both of the contact points increases the rotational inertia characteristics of the lightweight ski while minimizing the resulting weight. A second embodiment of the present invention relates to a method of increasing the rotational inertia of a lightweight ski.
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Goode David
Hueton Iain
Baker Trent H.
Baker & Associates PLLC
D2 Investments, LLC
Ellis Christopher P
Walters John D
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