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US 4,204,581 AGranted
Snowfoil ski-bob
AssigneeSaroy Engineering
InventorRoyce H. Husted
Life of this patent
Estimating the term…
Abstract
A power driven ski-bob comprising a front steerable ski and a motor driven propulsion unit which are connected to the rest of the ski-bob's structure by struts, so that the rider and motor move above the snow to minimize the drag of the snow on the ski-bob.
Claims3
In a power driven snowfoil ski-bob for moving in soft snow, comprising in combination:
- a front steerable ski and a rear propulsion unit, each having a limited frontal area and a substantial under surface area,
- a frame adapted to support a rider,
- a motor for propelling said propulsion unit,
- struts for connecting said front ski and said propulsion unit to said motor to other parts of said ski-bob,
- the improvement wherein said motor is carried elevated above the propulsion unit and the snow on a strut having a substantially narrower frontal area than said motor so that the drag imposed by the snow on said ski-bob is minimized.
2 more elements
Dependencies are inferred from the claim text.