Amphibious motor-driven cycle
OwnerKenneth R. Duffinventor
Life of this patent
Estimating the term…
Abstract
An amphibious two-wheeled cycle having an occupant-receiving hull secured to and receiving a frame and provided with front and rear wheel wells, a steerable front wheel supported by the frame and partially received in the front wheel well, and a motor-driven rear wheel supported from the frame and partially received in the rear wheel well. The front wheel well is defined by a special unit which provides a substantially watertight continuation of the hull but which allows unimpeded turning movement of the front wheel about a steering axis for steering the vehicle on land.
Claims23
A two-wheeled amphibious cycle adapted for both land and water travel and comprising a frame, a vehicle steering front wheel unit supported by said frame and including (a) means rotatably mounting said front wheel and supported on said frame for manual rotation about a steering axis for steering the cycle on land, a motor-driven ground-engaging rear wheel rotatably supported from said frame, a floatation hull rigid with said frame, and seat means mounted on the assembly of said hull and said frame for occupancy by the driver of the amphibious cycle, said front and rear wheels being disposed one behind the other and protruding below the bottom of said hull for engagement with a ground surface during land travel, said hull being provided with downwardly opening front and rear wheel wells which define substantially watertight continuations of the bottom of said hull at least below the water line of said hull, and said front and rear wheels being partially received in said front and rear wells, respectively, said front wheel extending freely through an opening in the bottom of said hull, and said front wheel well being formed by a unit which is carried by a part of said front wheel mounting means and which provides a substantially watertight seal opposing entry of water into the hull through said opening, but allows unimpeded turning movement of the front wheel for steering the amphibious cycle on land.
A two-wheeled amphibious cycle adapted for both land and water travel and comprising a frame, a vehicle steering front wheel unit supported by said frame and including (a) a ground-engaging front wheel and (b) means rotatably mounting said front wheel and supported on said frame for manual rotation about a steering axis for steering the cycle on land, a motor-driven ground-engaging rear wheel rotatably supported from said frame, a rigid, unitary floatation hull rigid with said frame to render the amphibious cycle buoyant in the water, seat means mounted on the assembly of said frame and said hull for occupancy by the driver of the amphibious cycle, and motor-driven water-engaging propulsion means for propelling the amphibious cycle in the water, said front and rear wheels being disposed one behind the other and protruding below the bottom of said hull for engagement with a ground surface during land travel to provide for motor-driven travel on land without requiring removal of said hull, said hull having a water-engaging bottom wall lying below the hull's water line and extending the full length of said hull, said bottom wall encircling and extending between said front and rear wheels to form two separate spaced apart apertures, said front wheel extending through one of said apertures, and said rear wheel extending through the other of said apertures, said hull being provided with spaced apart downwardly opening front and rear wheel wells which define substantially watertight continuations of said bottom wall at least below the water line of said hull, said front wheel being partially received in said front well and protruding below the hull during water travel, and said rear wheel being partially received in said rear well so that it also protrudes below the hull during water travel.
Dependencies are inferred from the claim text.