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Publication numberUS2938727 A
Publication typeGrant
Publication dateMay 31, 1960
Filing dateJan 18, 1957
Priority dateJan 18, 1957
Publication numberUS 2938727 A, US 2938727A, US-A-2938727, US2938727 A, US2938727A
InventorsNosak Chester S
Original AssigneeNosak Chester S
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Aquatic recreational device
US 2938727 A
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Description  (OCR text may contain errors)

May 31, 1960 c. s. NOSAK AQUATIC RECREATIONAL DEVICE Filed Jan. 18, 1957 ATTORNEYS United States Patent AQUATIC RECREATIONAL DEVICE Chester S. Nosak, 509 Hamlin St., Warwick, Va.

Filed Jan. 18, 1957, Ser. No; 634,995

2 Claims. (Cl. 272-57) This invention relates to recreational equipment and more particularly to that form of inflatable recreational equipment which may be used in water at beaches and swimming pools for support in the water, play and exercise.

Inflatable rubber or plastic rafts are well-known. These are used principally as plat-forms from which to dive into the water, and as a support for the body of a user who uses his hands and feet to paddle it about in the water. The user of such equipment must either lie on the raft or straddle it, standing in an upright position being almost impossible due to the action of the water in upsetting the users balance; and, in models made of light-weight material, a good footing could not be obtained due to the feet of the user sinking into the raft.

The present invention is designed to enable the user to obtain a far greater range of exercise which will develop abdominal muscles as well as muscles of the legs and arms. At the same time, it will furnish a means for entertainment and provide for a wider range of games that may be played by a group.

Consequently, it is an object of the present invention to provide an inflatable hollow-wall recreational device for use in the water at beaches and swimming pools, having the form of a generally spherical cage into which the user may enter and standing upright may propel the device over the water by changing his position in the device in one direction or another to over-balance it.

A still further object of the present invention is to provide such an aquatic recreational device with means by which the user may secure himself within the sphere so that he may roll about on the water head-over-heels.

Other objects of the invention will become apparent from the description of the following practical embodi ments of the invention when read in conjunction with the drawings, wherein,

Figure 1 is a plan view of the inflatable hollow-wall recreational sphere of the present invention;

Figure 2 is a side elevational view of the sphere, parts a being in section;

Figure 3 is a section taken on the line 3-3 of Figure 1.

Adverting now to the drawings, and particularly to Figures 1 and 2, there is shown an aquatic sphere 1 having a double wall 2. The wall 2 consists of concentric spheres, one being the inner envelope 3 and the other being the outer skin 4 spaced therefrom to provide an air space 5. The diameter of the sphere may be varied to accommodate the height of users, three sizes being adequate to accommodate children, women and men. The most likely size would have, for example, a diameter of about 6 feet.

A plurality of ports or entrances 6 are provided about the periphery of the sphere 1. The size and number of the ports 6 may be varied according to the size of the sphere. In the embodiment shown in Figure 1 there 2,938,727 I Patented May 31, 1969 are fourteen" of the ports 6 fora six-foot diameter sphere, and each of the ports is about 20" in diameter.

'A liner 7 surrounds each of the ports 6 and connects the inner envelope 3 with the outer skin 4. The liner 7 is about 6" in width in the embodiment shown in Figure 1.

The inner envelope 3 and the outer skin 4 are made of plastic or rubber and may be reinforced with suitable fabric. Each may be molded in the shape of hemispheres, two hemispheres, not shown, being vulcanized or heatsealed'together to form the inner envelope or the outer skin. Perhaps more conveniently they may be made of pieces of rubber or plastic material cut to the shape of spherical sectors and vulcanized or heat-sealed together to form the inner envelope 3 or the outer skin 4, in the well-known manner of forming inflatable beach balls. The two spheres may then be connected together by the port liners 7 by sealing the edges of the liners to the inner envelope 3 and outer skin 4.

A recess 8 is provided in one of the liners 7 and a valve 9, which is similar to a tire valve, is installed in the recess in communication with the air space 5. A tire pump may be used for pressurizing the air space 5. When the device is inflated, it assumes a generally spherical form.

Of course, the elastic material of which the two spheres 3 and 4 are made will bulge inwardly in the case of the inner envelope 3, and outwardly in the case of the outer skin 4 when the air space 5 is pressurized, so that while the distance between the outer skin 4 and the inner envelope 3 will be 6" at the edge of the ports 7, they will lie, for example, 8 or 9" apart at the mid-points between the ports when the wall 2 of the sphere 1 is inflated.

A pair of handholds 10 are attached to the inner envelope 3. The handheld 10 comprises a handgrip 11 and an attachment ring 12 through which an adjustable length strap 13 is passed and fastened with a buckle 14. The attachment ring 12 is fixed to the inner envelope 3 by means of a strap 15 passed through the attachment ring 12 and vulcanized or heatwelded to the inner envelope 3. To reinforce the point of attachment, one or more plies of reinforcement material 16 may be seecured to the inner envelope and the strap 15 may then be attached to the reinforcement material.

A pair of stirrups 17 are attached to the inner envelope 3 at a point diametrically opposite the handholds 10. The inner envelope 3 may be reinforced in the same manner as for the handholds.

In use, the spherical aquatic recreational device of this invention may be deflated and packed in a suitable carrying case for transportation. After inflation, the sphere is rolled into the water, and the user enters the interior through one of the openings or ports. Inserting his feet in the stirrups and gripping the handholds which have 7 been adjusted for his height, the user arches his body forwardly or rearwardly to create an imbalance of the sphere to cause it to roll, the user being turned head-over heels as the sphere revolves. With practice, the user can readily propel the sphere over the water by rhythmically pulling on the handholds and kicking with his feet, the flexibility of the device being advantageous to this maneuver; and by lurching in one direction or another he can change his rotation to that of a spiral.

For the playing of games in the water, the device of the present invention affords an excellent medium for a contest. The players on the outside of the sphere can readily grip the sphere at the ports or openings, to facilitate propelling it toward a goal line.

While in the above description there has been disclosed practical embodimentsof the invention, it will be under- 3 stood that the invention may include other structural forms.

What is claimed is:

1. An inflatable aquatic'recreational device conipris ing inner and 'outer concentric spheresof airtight material, each said sphere having a plurality of ports registering with similar ports in the other said sphere, s aid spheres being joined together along the edges of said ports to form a sealed air space between said spheres, said spheres defining the wall of a chamber of a size to receive a person whensaid air space between said which said person may enter said chamber.

' 2. In an inflatable aquatic recreational device as claimed in claim 1, a pair of hand holds and a pairof stirrups, said pairs being attached to said inner sphere at diametrically opposite points.

spheres is pressurized, and said ports being means through References Cited in the file of this patent UNITED STATES PATENTS Maroukis Jan. 10, 1922 Guinzburg Dec. 22, 1925 Feick July 3, 1928 Bertram Aug. 13, 1935 Hochberg'u; Aug. 13, 1940 .Carvell June 22, 1954 FOREIGN PATENTS a 1 'Germany Aug. 4, 1928 Germany Aug. 29, 1929 Great Britain Q. Feb. 20, 1939 Germany Oct. 26, 1939 France Ian. 31, 1951

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1403434 *Mar 4, 1920Jan 10, 1922Maroukis James MWater sport device
US1566858 *Feb 27, 1925Dec 22, 1925Guinzburg Edwin ASwimming ring
US1676015 *Jun 30, 1926Jul 3, 1928Feick OttoSporting apparatus
US2011209 *Sep 25, 1934Aug 13, 1935Harry L BertramAquatic amusement device
US2211330 *Mar 20, 1940Aug 13, 1940Hochberg TheodoreCombination spear and ball game
US2681638 *Oct 24, 1950Jun 22, 1954Carvell Edward BAnimal exerciser
DE463933C *Aug 4, 1928Otto FeickReifengeraet nach Patent 442057, insbesondere fuer Belustigungszwecke
DE481374C *Aug 23, 1929Franz GrueberBall fuer Stechballspiele
DE682951C *Apr 8, 1938Oct 26, 1939Erdmann Schulz JunLaufrad fuer Wassersport
FR982576A * Title not available
GB500989A * Title not available
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3066951 *Aug 18, 1960Dec 4, 1962Gray William JRolling sphere having means for accommodating an occupant therewithin
US3428015 *Dec 29, 1966Feb 18, 1969Samuel E CloudSpherical vehicle
US3477713 *Jan 12, 1967Nov 11, 1969Cudmore Patrick JRocking capsule
US3604033 *May 2, 1969Sep 14, 1971Lino John LBuoyant aquatic recreational device
US3806156 *Jun 27, 1972Apr 23, 1974Raymond Lee Organization IncRolling vehicular toy
US3883913 *Dec 12, 1972May 20, 1975Res Q Raft IncAquastabilized survival raft
US4042252 *Aug 13, 1975Aug 16, 1977Winter Richard DInflatable spherical vehicular device
US4073504 *Feb 9, 1976Feb 14, 1978Catherine KnappAmusement device
US4077625 *Mar 22, 1976Mar 7, 1978Clarke William APneumatic cushion toy
US4298197 *Jan 29, 1979Nov 3, 1981Flagg Rodger HBalance assist for rotating recreational devices
US4458895 *Dec 28, 1982Jul 10, 1984Jocelyn TurcotteSpherical recreational hollow body
US4468023 *Sep 20, 1982Aug 28, 1984Solloway Daniel SAquatic neck exercise assembly
US4775346 *Sep 8, 1986Oct 4, 1988Gunter Terry LApparatus for anchoring a flotation device
US5460113 *Feb 7, 1994Oct 24, 1995Gunter; Terry L.Apparatus for anchoring a flotation device
US5921834 *Dec 14, 1994Jul 13, 1999Douglas Builders, Inc.In a water toy
US7927163 *Aug 2, 2010Apr 19, 2011Eugene ZeygerRecreational flotation device
US8312844Nov 16, 2009Nov 20, 2012Radio Systems CorporationEndoskeletal pet toy
US20130296085 *Jul 1, 2013Nov 7, 2013Pete ParentiFlexible hole ball with angled hole walls
DE102004043765A1 *Sep 10, 2004Mar 30, 2006Markus LaierPolygonal body for rolling over surface of body of water is made of regular array of hexagonal and pentagonal facets with holes for ventilation, and propelled by user running inside
DE102004043765B4 *Sep 10, 2004May 8, 2008Markus LaierWassersporteinrichtung
Classifications
U.S. Classification482/78, 446/220, 472/129, 280/206, 441/78, 446/153, 473/596, 441/66, 52/2.18
International ClassificationA63B19/00, A63B19/02
Cooperative ClassificationA63B2208/12, A63B2225/60, A63B19/02
European ClassificationA63B19/02