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US 4,395,241 AGranted
Amphibious sled device
OwnerJohn E. Comparettoinventor
Life of this patent
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Abstract
An amphibious sled has a body with a flexible frontal portion which is deformed inwardly and rearwardly to improve operational characteristics of the sled. In the water version, the flexible frontal portion is deformed downwardly, inwardly and rearwardly to act as catchers for waves and to aid in the propelling of the sled with water power. In land use, the frontal portion is deformed inwardly and upwardly.
Claims9
A sled for use over ice, snow, and water, said sled comprising:
- a semi-rigid buoyant member adapted to support a user;
- a flexible member attached to said buoyant member and extending beyond one end thereof;
- a centrally located opening;
- a cord having two ends, each end being attached to said flexible member substantially at a corner thereof,
- said cord passing through said opening and enabling said user to form a venturi-like passage with said flexible member.
2 more elements
A sled for use over ice, snow, and water, said sled comprising:
- a semi-rigid buoyant member adapted to support a user;
- a flexible member attached to said buoyant member and extending beyond one end thereof;
- at least two cuts formed in said flexible member extending inwardly from an outer end of said flexible member, said cuts forming at least four corners in said flexible member, said corners being brought together to form venturi-like passages in said flexible member.
A sled for use over ice, snow, and water, said sled comprising:
- a semi-rigid buoyant member having two sides and an end and adapted to support a user;
- a flexible member attached to said buoyant member and extending beyond said end thereof;
- said flexible member having at least two portions, each portion extending beyond a respective side of said buoyant member;
- said flexible member further having a third portion, said third portion extending beyond the ends of said at least two portions;
- said at least two portions and said third portion being used to form venturi-like passages in said flexible member.
2 more elements
Dependencies are inferred from the claim text.