Statement Regarding Federally Sponsored Research or Development
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The disclosure and prior art relates to fin devices and more particularly pertains to a new fin device for increasing propulsion during swimming.
An embodiment of the disclosure meets the needs presented above by generally comprising a sleeve that is worn around a lower leg while swimming. A plurality of fins is each hingedly coupled to the sleeve. Each of the fins is urged into a deployed position on a downstroke of the lower leg during swimming. In this way each of the fins frictionally engage water thereby increasing thrust generated on the downstroke. Each of the fins is urged into a stored position on an upstroke of the lower leg during swimming to resist frictionally engaging the water thereby reducing drag on the upstroke.
There has thus been outlined, rather broadly, the more important features of the disclosure in order that the detailed description thereof that follows may be better understood, and in order that the present contribution to the art may be better appreciated. There are additional features of the disclosure that will be described hereinafter and which will form the subject matter of the claims appended hereto.
The objects of the disclosure, along with the various features of novelty which characterize the disclosure, are pointed out with particularity in the claims annexed to and forming a part of this disclosure.
The disclosure will be better understood and objects other than those set forth above will become apparent when consideration is given to the following detailed description thereof. Such description makes reference to the annexed drawings wherein:
With reference now to the drawings, and in particular to
As best illustrated in
A plurality of fins 28 is each hingedly coupled to the sleeve 12. Each of the fins 28 is urged into a deployed position on a downstroke of the lower leg 14 during swimming. Thus, each of the fins 28 frictionally engages water thereby increasing thrust generated on the downstroke. Each of the fins 28 is urged into a stored position on an upstroke of the lower leg 14 during swimming. Thus, each of the fins 28 resists frictionally engaging the water thereby reducing drag on the upstroke.
A plurality of connection points 30 is each coupled to the outer surface 18 of the sleeve 12. The connection points 30 are spaced apart from each other and are distributed on the outer surface 18. Moreover, the connection points 30 may be arranged to form a pair of rows extending around the sleeve 12. Each of the fins 28 has a bottom surface 32, a top surface 34 and an outer edge 36, and the outer edge 36 of each of the fins 28 pivotally engages a respective one of the connection points 30. The bottom surface 32 of each of the fins 28 lies on the outer surface 18 of the sleeve 12 when the fins 28 are in the stored position. Alternatively, the bottom surface 32 of each of the fins 28 is spaced from the outer surface 18 of the sleeve 12 when the fins 28 are in the deployed position. The top surface 34 of each of the fins 28 has a stop 38 thereon, and the stop 38 on each of the fins 28 abuts the respective connection point 30 when the fins 28 are in the deployed position. In this way the fins 28 are retained at a pre-determined angle when the fins 28 are in the deployed position thereby facilitating the fins 28 to generate thrust.
In use, the sleeve 12 is wrapped around the lower leg 14 and the first mating member 25 is mated to the second mating member 26. The fins 28 are compressed against the sleeve 12 on the upstroke of the lower leg 14 during swimming. Thus, the fins 28 pose minimum resistance in the water during the upstroke. Each of the fins 28 frictionally engages the water and each of the fins 28 is urged into the deployed position on the downstroke of the lower leg 14 during swimming. Additionally, the stop 38 on each of the fins 28 abuts the respective connection point 30 thereby facilitating each of the fins 28 to generate thrust on the downstroke. In this way the fins 28 enhance the speed at which a user can propel themselves through the water during swimming.
With respect to the above description then, it is to be realized that the optimum dimensional relationships for the parts of an embodiment enabled by the disclosure, to include variations in size, materials, shape, form, function and manner of operation, assembly and use, are deemed readily apparent and obvious to one skilled in the art, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by an embodiment of the disclosure.
Therefore, the foregoing is considered as illustrative only of the principles of the disclosure. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the disclosure to the exact construction and operation shown and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the disclosure. In this patent document, the word “comprising” is used in its non-limiting sense to mean that items following the word are included, but items not specifically mentioned are not excluded. A reference to an element by the indefinite article “a” does not exclude the possibility that more than one of the element is present, unless the context clearly requires that there be only one of the elements.
Number | Name | Date | Kind |
---|---|---|---|
1260931 | Melhus | Mar 1918 | A |
1488642 | Kjelgaard | Apr 1924 | A |
1843582 | Schmitt | Feb 1932 | A |
3109186 | Glenn | Nov 1963 | A |
5087217 | Tuan | Feb 1992 | A |
5326296 | De Jesus | Jul 1994 | A |
5338235 | Lee | Aug 1994 | A |
7040942 | Houck | May 2006 | B1 |
9333392 | Nakamura | May 2016 | B2 |
9649535 | Nicol | May 2017 | B2 |