초록 ▼

A recreational water flotation device includes a central body defining an upper surface and a bottom surface and having a front end and a rear end. A left lateral element extends from a left end of the central body and defines a left canted surface canted toward the central body and further defines

A recreational water flotation device includes a central body defining an upper surface and a bottom surface and having a front end and a rear end. A left lateral element extends from a left end of the central body and defines a left canted surface canted toward the central body and further defines a left end of the flotation device. A right lateral element extends from a right end of the central body and defines a left canted surface canted toward the central body and further defining a right end of the flotation device. The device is buoyant in water. A propeller can be mounted to the bottom surface of the central body.

대표청구항 ▼

1. A recreational water flotation device comprising: a central body defining an upper surface and a bottom surface and having a front end and a rear end;a left lateral element extending from a left end of said central body, said left lateral element defining a top, left canted surface, said left can

1. A recreational water flotation device comprising: a central body defining an upper surface and a bottom surface and having a front end and a rear end;a left lateral element extending from a left end of said central body, said left lateral element defining a top, left canted surface, said left canted surface canted toward said upper surface of said central body, and further defining a left end of said flotation device;a right lateral element extending from a right end of said central body, said right lateral element defining a top, right canted surface, said right canted surface canted toward said upper surface of said central body, and further defining a right end of said flotation device; anda front fin extending along a front edge of said central body and further extending between said left lateral element and said right lateral element, said front fin and said front edge defining a surface angled toward said rear end of said central body for providing a smooth flow of water thereover; whereinsaid device is buoyant in water. 2. The recreational water flotation device according to claim 1, wherein said central body, said left lateral element and said right lateral element form a single-piece body. 3. The recreational water flotation device according to claim 1, wherein a left lateral side of said left lateral element and a right lateral side of said right lateral element define a width of said flotation device, and the front end and rear end of said central body define a length of said flotation device, and further wherein said width is greater than said length. 4. The recreational water flotation device according to claim 3, wherein said left lateral side and said right lateral side have an arcuately convex peripheral shape, wherein said front end and said tear end of said central body have an arcuately convex peripheral shape, and further wherein peripheral areas connecting adjacent ones of said left lateral side, said front end, said right lateral side, and said rear end are arcuately concave. 5. The recreational water flotation device according to claim 1, further including a left rear fin and a right rear fin, wherein said left and tight rear fins are arcuately concave and protrude from said bottom surface of said central body at a rear periphery thereof. 6. The recreational water flotation device according to claim 1, further comprising a propulsion unit including a propeller arranged beneath said central body. 7. The recreational water flotation device according to claim 6, wherein said propeller is rotatable with respect to said central body. 8. The recreational water flotation device according to claim 7, wherein said propeller is freely rotatable with respect to said central body. 9. The recreational water flotation device according to claim 6, further comprising a non-propelling weight, wherein the propeller and the non-propelling weight are interchangeably mountable to said central body. 10. The recreational water flotation device according to claim 6, wherein the propeller is electrically-driven, and the propulsion unit further comprises a battery assembly for providing electrical power to the propeller, said battery assembly being at least partially embedded in said central body. 11. The recreational water flotation device according to claim 10, wherein at least one battery of said battery assembly is removably insertable into said central body. 12. The recreational water flotation device according to claim 6, wherein the propulsion unit further comprises at least one user-operable control for starting and stopping the propeller, said at least one user-operable control being operable by a user standing on the flotation device. 13. The recreational water flotation device according to claim 6, wherein the propulsion unit further comprises at least one user-operable control for adjusting the speed of the propeller, said at least one user-operable control being operable by a user standing on the flotation device. 14. A recreational water flotation device comprising: a central body defining an upper surface and a bottom surface and having a front end and a rear end;a left lateral element extending from a left end of said central body, said left lateral element defining a left canted surface, said left canted surface canted toward said central body, said left lateral element comprising a left lateral side defining a left end of said flotation device;a right lateral element extending from a right end of said central body, said right lateral element defining a right canted surface, said right canted surface canted toward said central body, said right lateral element comprising a right lateral side defining a right end of said flotation device; anda propulsion unit comprising a propeller arranged beneath said central body, said propeller being rotatable with respect to said central body and limited to rotate within a predetermined angular range with respect to said central body; whereinsaid device is buoyant in water. 15. The recreational water flotation device according to claim 14, wherein said left lateral side and said right lateral side have an arcuately convex peripheral shape, wherein said front end and said rear end of said central body have an arcuately convex peripheral shape, and further wherein peripheral areas connecting adjacent ones of said left lateral side, said front end, said right lateral side, and said rear end are arcuately concave. 16. The recreational water flotation device according to claim 15, further including a left rear fin and a right rear fin, wherein said left and right rear fins are arcuately concave and protrude from said bottom surface of said central body at a rear periphery thereof. 17. The recreational water flotation device according to claim 14, further including a front fin extending along a front edge of said central body and further extending between said left lateral element and said right lateral element, said front fin and said front edge defining a surface angled toward said rear end of said central body for providing a smooth flow of water thereover. 18. A recreational water flotation device comprising: a central body defining an upper surface and a bottom surface and having an arcuately convex front end, and an arcuately convex rear end;a left lateral element having a convexly arcuate left lateral side and extending from a left end of said central body, said left lateral element defining a left canted surface, said left canted surface canted toward said central body, and further defining a left end of said flotation device;a right lateral element having a convexly arcuate right lateral side and extending from a right end of said central body, said right lateral element defining a right canted surface, said right canted surface canted toward said central body, and further defining a right end of said flotation device, whereinperipheral areas connecting adjacent ones of said left lateral side, said front end, said right lateral side, and said rear end are arcuately concave;a front fin extending along at least a front edge of said central body, said front fin and said front edge defining a surface angled toward said rear for providing a smooth flow of water thereover;a left rear fin and a right rear fin, said left and right rear fins being arcuately concave and protruding from said bottom surface of said central body at a rear periphery thereof; anda propulsion unit comprising a propeller arranged beneath said central body, said propeller being rotatable with respect to said central body; whereinsaid device is buoyant in water. 19. A recreational water flotation device comprising: a central body defining an upper surface and a bottom surface and having a front end and a rear end;a left lateral element extending from a left end of said central body, said left lateral element defining a top, left canted surface, said left canted surface canted toward said upper surface of said central body, and further defining a left end of said flotation device;a right lateral element extending from a right end of said central body, said right lateral element defining a top, right canted surface, said right canted surface canted toward said upper surface of said central body, and further defining a right end of said flotation device;a propulsion unit including a propeller arranged beneath said central body; anda non-propelling weight, wherein the propeller and the non-propelling weight are interchangeably mountable to said central body; whereinsaid device is buoyant in water.