초록 ▼

A scuba tank mobility device and a system comprise a cup member that may be fitted directly over the scuba tank or over a scuba tank boot. A roller member is mounted to rotate with respect to the cup member and positioned vertically with respect to bottom of the cup member so that the roller permits

A scuba tank mobility device and a system comprise a cup member that may be fitted directly over the scuba tank or over a scuba tank boot. A roller member is mounted to rotate with respect to the cup member and positioned vertically with respect to bottom of the cup member so that the roller permits standing support of the scuba tank. The tank is tilted from the standing position to place weight on the roller member for transport. The cup member comprises a projection radially outside its diameter to limit rolling of the scuba tank when on its side. In a further form, a handle may be attached to the cup member and extend axially therefrom. The cup member and handle are dimensioned to provide minimal projection from the contour of the scuba tank, whereby potential for a tangling with underwater vegetation and other objects is minimized.

대표청구항 ▼

What is claimed is: 1. A scuba tank mobility device comprising: a cup member to receive a lower end of a scuba tank in an interior of said cup member, said cup member comprising an annular wall, and a lower support surface, a roller member mounted to said cup member, said cup member supporting the

What is claimed is: 1. A scuba tank mobility device comprising: a cup member to receive a lower end of a scuba tank in an interior of said cup member, said cup member comprising an annular wall, and a lower support surface, a roller member mounted to said cup member, said cup member supporting the scuba tank in a first state in which said mobility device is in equilibrium to rest on a surface, and said cup member being tiltable to transfer weight to said roller member and free said lower support surface of engagement with the surface, wherein said cup member has a first, fixed diameter and is compressible to have a reduced diameter and further comprising tightening means actuatable from a first position to a second position to reduce diameter of said cup member from said first diameter to the second diameter. 2. A device according to claim 1 wherein said tightening means comprises a cutout in a wall of cup member and fastening means to draw said cutout toward a closed position. 3. A device according to claim 2 wherein fastening means comprises a strap and a clamp to tighten said strap and wherein said cup member comprises an annular channel receiving said strap. 4. A scuba tank mobility device comprising: a cup member to receive a lower end of a scuba tank in an interior of said cup member, said cup member comprising an annular wall, and a lower support surface, a roller member mounted to said cup member, said roller member comprising first and second coaxially mounted wheels to rotate about a common axis, said cup member supporting the scuba tank in a first state in which said mobility device is in equilibrium to rest on a surface, and said cup member being tiltable to transfer weight to said roller member and free said lower support surface of engagement with the surface is, said cup member further comprising a platform having an upper surface to support a bottom of the scuba tank and at least one lip member extending below a lower surface of the platform, said lip member subtending a preselected arc of said cup member and wherein lip member and said roller member define a support for said device in said first state, wherein said axis intersects the interior of said cup member. 5. A device according to claim 4 wherein said cup member comprises an annular wall surrounding the interior thereof and said cup member further comprises first and second projections, said device further comprising first and second axle members respectively received in said first and second projections, said first and second wheels being supported to said first and second axle members respectively. 6. A device according to claim 5 wherein each said axle member is L-shaped and has first and second legs and wherein each said projection comprises a vertically extending slot to receive a first leg and a vertical bore communicating with said slot and having an upper end communication with an upper surface of a projection to receive the second leg, said slot having a dimension to locate said first leg on said axis. 7. A device according to claim 6 wherein an end of said second leg is threaded and wherein said device further comprises a nut rotatable to secure each axle member between said slot and the upper surface of said projection. 8. A scuba tank mobility device comprising: a cup member to receive a lower end of a scuba tank in an interior of said cup member, said cup member comprising an annular wall, and a lower support surface, a roller member mounted to said cup member, said roller member comprising first and second coaxially mounted wheels to rotate about a common axis, said cup member supporting the scuba tank in a first state in which said mobility device is in equilibrium to rest on a surface, and said cup member being tiltable to transfer weight to said roller member and free said lower support surface of engagement with the surface is, said cup member further comprising a platform having an upper surface to support a bottom of the scuba tank and at least one lip member extending below a lower surface of the platform, said lip member subtending a preselected arc of said cup member and wherein lip member and said roller member define a support for said device in said first state, wherein said wheels each have a cross section tapered from an inner diameter to an outer diameter. 9. A device according to claim 8 wherein each wheel comprises a groove at its outer diameter capable of supporting an o-ring having a selected one of a plurality of diameters. 10. A device according to claim 9 further comprising an o-ring mounted in said groove at the outer diameter of each wheel. 11. A scuba tank mobility system comprising: a cup member to receive a lower end of a scuba tank in an interior of said cup member, said cup member comprising an annular wall, and a lower support surface, a roller member mounted to said cup member, said cup member supporting the scuba tank in a first state in which said mobility device is in equilibrium to rest on a surface, said cup member being tiltable to transfer weight to said roller member and free said lower support surface of engagement with the surface, said system further comprising a scuba tank having a first, lower end mounted in said up member, said scuba tank further comprising a second, upper end having a nipple end, said system being movable from said first state to said second state by application of a force moment to said nipple end of said scuba tank, wherein said cup member comprises a platform having an upper surface to support a bottom of the scuba tank and at least one lip member extending below a lower surface of the platform, and wherein lip member and said roller member define a support for said device in said first state, and further comprising at least one protector member affixed to said scuba tank. 12. A device according to claim 11 wherein each said protector member comprises an elongated member extending substantially parallel to an axis of said scuba tank.