A levitation device includes a body having a top surface and a bottom surface positioned opposite the top surface, an air reservoir configured to contain a predetermined volume of compressed air, and a thrust arrangement including a flow conduit having a primary inlet, a secondary inlet, and an outl
A levitation device includes a body having a top surface and a bottom surface positioned opposite the top surface, an air reservoir configured to contain a predetermined volume of compressed air, and a thrust arrangement including a flow conduit having a primary inlet, a secondary inlet, and an outlet, with the outlet positioned adjacent to the bottom surface of the body. The secondary inlet is in fluid communication with ambient air and the primary inlet is in fluid communication with the air reservoir and positioned upstream from the secondary inlet and the outlet.
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1. A levitation device comprising: a body having a top surface and a bottom surface positioned opposite the top surface;an air reservoir configured to contain a predetermined volume of compressed air; anda thrust arrangement comprising a flow conduit having a primary inlet positioned downstream of t
1. A levitation device comprising: a body having a top surface and a bottom surface positioned opposite the top surface;an air reservoir configured to contain a predetermined volume of compressed air; anda thrust arrangement comprising a flow conduit having a primary inlet positioned downstream of the air reservoir, a secondary inlet, and an outlet, the outlet positioned adjacent to the bottom surface of the body, the secondary inlet is in fluid communication with ambient air, the primary inlet is in fluid communication with the air reservoir and positioned upstream from the secondary inlet and the outlet. 2. The levitation device of claim 1, wherein the thrust arrangement is configured to provide a thrust force at the outlet. 3. The levitation device of claim 1, wherein the primary inlet is positioned 90 degrees relative to the secondary inlet. 4. The levitation device of claim 1, wherein the flow conduit comprises a constricted section, the thrust arrangement configured to provide a Venturi effect with entrainment of ambient air via the secondary inlet to supplement compressed air provided from the primary inlet and the air reservoir. 5. The levitation device of claim 4, wherein the constricted section comprises a section of the flow conduit where a diameter of the flow conduit decreases from a first diameter to a second diameter and subsequently increases back to the first diameter. 6. The levitation device of claim 5, wherein the constricted section is a smooth tapering in diameter from the first diameter to the second diameter and back to the first diameter. 7. The levitation device of claim 1, wherein the body has a first end and a second end positioned opposite the first end along a longitudinal axis of the body, and wherein the primary inlet and the secondary inlet are positioned at about the first end of the body and the outlet is positioned at about the second end of the body. 8. The levitation device of claim 1, wherein the primary inlet comprises a nozzle having an orifice. 9. The levitation device of claim 1, wherein the secondary inlet is configured to induce vacuum on atmospheric air. 10. A levitation device comprising: a body having a top surface and a bottom surface positioned opposite the top surface;an air reservoir configured to contain a predetermined volume of compressed air; anda thrust arrangement comprising a flow conduit having a primary inlet, a secondary inlet, and an outlet, the outlet positioned adjacent to the bottom surface of the body, the secondary inlet is in fluid communication with ambient air, the primary inlet is in fluid communication with the air reservoir and positioned upstream from the secondary inlet and the outlet, wherein the thrust arrangement comprises at least a first pair of flow conduits and a second pair of flow conduits. 11. The levitation device of claim 10, wherein the secondary inlets and outlets of each flow conduit are located 180 degrees from each other in a z-dimension extending perpendicular from an x-y plane defined by the top surface of the body. 12. The levitation device of claim 11, wherein the secondary inlets are spaced from the outlets of each conduit in a y-dimension extending from a first end of the body to a second end of the body. 13. The levitation device of claim 11, wherein one of the secondary inlets of the first pair of flow conduits is positioned above one of the outlets of the first pair of flow conduits in the z-dimension. 14. The levitation device of claim 11, wherein each of the flow conduits of the first pair of flow conduits comprises a constricted section, the constricted section of one of the flow conduits of the first pair of flow conduits spaced from the other constricted section of the other one of the flow conduits of the first pair of flow conduits in an x-dimension extending perpendicular to a y-dimension extending from a first end of the body to a second end of the body. 15. A levitation device comprising: a body having a top surface and a bottom surface positioned opposite the top surface;an air reservoir configured to contain a predetermined volume of compressed air; anda thrust arrangement comprising a flow conduit having a primary inlet, a secondary inlet, and an outlet, the outlet positioned adjacent to the bottom surface of the body, the secondary inlet is in fluid communication with ambient air, the primary inlet is in fluid communication with the air reservoir and positioned upstream from the secondary inlet and the outlet, wherein the air reservoir is defined by a space within the body, and wherein the thrust arrangement is received within the body. 16. A levitation device comprising: a body having a top surface and a bottom surface positioned opposite the top surface;an air reservoir configured to contain a predetermined volume of compressed air; anda thrust arrangement comprising a flow conduit having a primary inlet, a secondary inlet, and an outlet, the outlet positioned adjacent to the bottom surface of the body, the secondary inlet is in fluid communication with ambient air, the primary inlet is in fluid communication with the air reservoir and positioned upstream from the secondary inlet and the outlet, wherein the air reservoir is defined by an air cylinder received within the body, and wherein the thrust arrangement is received within the body. 17. The levitation device of claim 16, wherein the body defines an opening configured to receive the air reservoir. 18. The levitation device of claim 16, wherein an air reservoir supply line connects the air reservoir to the primary inlet of the flow conduit.
Wilson Freddie W. (Mt. Airy MD) Howe Harvey J. (Reston VA) Nichols ; Jr. James H. (Hyattsville MD), Flexible annular jet seal for surface effect vehicles.
Ebbert Marvin D. (San Diego CA) Gustin Russell G. (Jamul CA) Horbett Edward G. (San Diego CA) Edwards Jack J. (El Cajon CA) Adcock Clifton L. (San Diego CA), Unmanned vertical take-off and landing, horizontal cruise, air vehicle.
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