A high altitude balloon system includes a dual chamber balloon extending from an upper apex to a lower apex with a circumferential edge between the upper and lower apexes. A deflectable diaphragm is within the dual chamber balloon and coupled along the circumferential edge. The deflectable membrane
A high altitude balloon system includes a dual chamber balloon extending from an upper apex to a lower apex with a circumferential edge between the upper and lower apexes. A deflectable diaphragm is within the dual chamber balloon and coupled along the circumferential edge. The deflectable membrane divides the dual chamber balloon into a lift gas chamber formed by an interior surface of the dual chamber balloon and the deflectable diaphragm, and a ballast chamber formed by the interior surface of the dual chamber balloon and the deflectable diaphragm. Optionally, the dual chamber balloon is constructed by interposing the deflectable diaphragm between an upper and lower balloon panels. Each of the upper and lower balloon panels and the deflectable diaphragm are then coupled together along the circumferential edge to form both the lift gas chamber and the ballast chamber.
대표청구항▼
1. An high altitude balloon system comprising: a dual chamber balloon, the dual chamber balloon extending from an upper apex to a lower apex with a circumferential edge between the upper and lower apexes;a deflectable diaphragm within the dual chamber balloon and coupled along the circumferential ed
1. An high altitude balloon system comprising: a dual chamber balloon, the dual chamber balloon extending from an upper apex to a lower apex with a circumferential edge between the upper and lower apexes;a deflectable diaphragm within the dual chamber balloon and coupled along the circumferential edge, the deflectable membrane divides the dual chamber balloon into: a lift gas chamber formed by an interior surface of the dual chamber balloon and the deflectable diaphragm, anda ballast chamber formed by the interior surface of the dual chamber balloon and the deflectable diaphragm, the ballast chamber configured to change the buoyancy of the dual chamber balloon; anda deflation port in communication with the lift gas chamber, the deflation port including: a valve flapper rotatably coupled with a valve ring,a biasing mechanism configured to bias the valve flapper toward an open position, anda retaining feature configured to hold the valve flapper in a closed position,disengagement of the retaining feature allowing the biasing mechanism to move the valve flapper to the open position. 2. The high altitude balloon system of claim 1, wherein the dual chamber balloon includes: an upper pliable balloon panel having the upper apex,a lower pliable balloon panel having the lower apex, and the deflectable diaphragm is interposed between upper and lower pliable balloon panels, andwherein the upper and lower pliable balloon panels and the deflectable diaphragm are coupled along the circumferential edge to form the dual chamber balloon. 3. The high altitude balloon system of claim 1 comprising an edge seal extending along the circumferential edge, and the edge seal seals each of the lift gas chamber and the ballast chamber. 4. The high altitude balloon system of claim 1, wherein the deflectable diaphragm is a pliable diaphragm panel coupled between the upper and lower pliable balloon panels at the circumferential edge. 5. The high altitude balloon system of claim 4, wherein the pliable diaphragm panel is the same size as the upper and lower pliable balloon panels. 6. The high altitude balloon system of claim 4, wherein at least two or more of the upper and lower pliable balloon panels and the pliable diaphragm panel are constructed with different materials. 7. The high altitude balloon system of claim 2, wherein the upper pliable balloon panel is configured as a space facing side of the dual chamber balloon and includes a heat reflective material, and the lower pliable balloon panel is configured as an earth facing side of the dual chamber balloon and includes a heat absorbent material, a heat reflectivity of the upper pliable balloon panel is greater than a heat reflectivity of the lower pliable balloon panel, anda heat absorbency of the lower pliable balloon panel is greater than a heat absorbency of the upper pliable balloon panel. 8. The high altitude balloon system of claim 1, wherein a dual chamber balloon volume is constant, and a lift gas chamber volume and a ballast chamber volume are variable components of the dual chamber balloon volume. 9. The high altitude balloon system of claim 1, wherein the ballast chamber volume is adjustable between 0 and 100 percent and the lift gas chamber volume is conversely adjustable between 0 and 100 percent of the dual chamber volume. 10. The high altitude balloon system of claim 1, wherein the dual chamber balloon includes a balloon outer surface, and a plurality of tendons extend over the balloon outer surface from the upper apex to the lower apex. 11. The high altitude balloon system of claim 10, wherein each of the plurality of tendons are coupled with a circumferential anchor at the circumferential edge, and the circumferential anchor retains the plurality of tendons in a distributed arrangement around the dual chamber balloon. 12. The high altitude balloon system of claim 1, wherein the dual chamber balloon includes a laminated or coextruded film, the laminated or coextruded film including: at least one polyethylene layer, andan ethyl vinyl alcohol layer. 13. The high altitude balloon system of claim 1 comprising: a source of lighter than air gas coupled with the lift gas chamber; anda controller with ascending, descending and static modes: in the static mode the controller coordinates a lift gas chamber volume and a ballast chamber volume to hold the high altitude balloon system at a static altitude,in the descending mode the controller increases the ballast chamber volume to decrease the lift gas chamber volume to lower the high altitude balloon system from the static altitude, andin the ascending mode the controller decreases the ballast chamber volume to increase the lift gas chamber volume to elevate the high altitude balloon system from the static altitude. 14. The high altitude balloon system of claim 1, wherein the retaining feature includes a destructible link, a heating element, and a receiver configured to initiate destructible of the destructible link with the heating element upon reception of a deflation signal. 15. The high altitude balloon system of claim 1 comprising a propulsion system coupled with the dual chamber balloon, the propulsion system providing directional control of the dual chamber balloon. 16. The high altitude balloon system of claim 15, wherein the propulsion system includes: a gondola coupled with the dual chamber balloon, and at least one propulsion unit coupled with the gondola and configured to control a heading of the balloon. 17. The high altitude balloon system of claim 1 comprising a remote launch system including: a launch chamber configured to hold the dual chamber balloon therein during at least a portion of inflation, andan anti-static charge system configured to minimize static electricity build up along the dual chamber balloon. 18. The high altitude balloon system of claim 17, wherein the anti-static charge system includes an inert gas source and a gas distribution mechanism coupled with the launch chamber. 19. A method of making a high altitude balloon system comprising: interposing a deflectable diaphragm between an upper pliable balloon panel and a lower pliable balloon panel, the upper pliable balloon panel including an upper apex of a dual chamber balloon, and the lower pliable balloon including a lower apex of the dual chamber balloon; andforming the dual chamber balloon including: coupling the upper pliable balloon panel with the lower pliable balloon panel at a circumferential edge to form a balloon outer surface of the dual chamber balloon,coupling the diaphragm to the upper and lower pliable balloon panels at the circumferential edge to form a lift gas chamber and a ballast chamber, the ballast chamber separated from the lift gas chamber by the diaphragm,wherein coupling the upper pliable balloon panel with the lower pliable balloon panel and coupling the diaphragm to the upper and lower pliable balloon panels occurs at the same time, andwherein the lift gas chamber is formed by the upper pliable balloon panel and the diaphragm, and the ballast chamber is formed by the lower pliable balloon panel and the diaphragm. 20. The method of claim 19 comprising: selecting a first material for the upper pliable balloon panel, andselecting a second material for the lower pliable balloon panel, the first material different from the second material. 21. The method of claim 20, wherein selecting the first material includes selecting a heat reflective material, a heat reflectivity of the first material greater than a heat reflectivity of the second material, and selecting the second material includes selecting a heat absorbent material, a heat absorbency of the second material greater than a heat reflectivity of the first material. 22. The method of claim 19 comprising coextruding one or more of the upper or lower pliable balloon panels with a layer of ethyl vinyl alcohol. 23. The method of claim 19, wherein one or more of coupling the upper and lower pliable balloon panels at the circumferential edge and coupling the diaphragm to the upper and lower pliable balloon panels includes forming an edge seal along the circumferential edge, the edge seal seals each of the lift gas chamber and the ballast chamber. 24. The method of claim 19 comprising coupling a plurality of tendons over a balloon outer surface of the dual chamber balloon, each of the plurality of tendons extending from near the upper apex to near the lower apex and crossing the circumferential edge. 25. The method of claim 24, wherein coupling the plurality of tendons includes retaining one or more of the plurality of tendons along the circumferential edge, and retaining maintains the plurality of tendons in a distributed arrangement around the dual chamber balloon. 26. The method of claim 19, wherein coupling the diaphragm to the upper and lower pliable balloon panels at the circumferential edge includes: forming the lift gas chamber having a lift gas chamber volume,forming the ballast chamber having a ballast chamber volume, and each of the lift gas chamber volume and the ballast chamber volume variably fill a dual balloon chamber volume of the dual chamber balloon. 27. The method of claim 19 comprising coupling a deflation port with the dual chamber balloon adjacent to the lift gas chamber, the deflation portion including: a valve flapper rotatably coupled with a valve ring,a biasing mechanism configured to bias the valve flapper toward an open position, anda retaining feature configured to hold the valve flapper in a closed position, disengagement of the retaining feature allowing the biasing mechanism to move the valve flapper to the open position. 28. The method of claim 19 comprising coupling a propulsion system with the dual chamber balloon, the propulsion system providing directional control of the dual chamber balloon. 29. The method of claim 28, wherein coupling the propulsion system includes coupling a gondola with the dual chamber balloon, and the gondola includes at least one propulsion unit configured to control a heading of the balloon. 30. The method of claim 19 comprising installing the dual chamber balloon within a remote launch system, the remote launch system including: a launch chamber configured to hold the dual chamber balloon therein during at least a portion of inflation, andan anti-static charge system configured to minimize static electricity build up along the dual chamber balloon. 31. The method of claim 30, wherein installing the dual chamber balloon within the remote launch system includes coupling an inert gas source and a gas distribution mechanism with the launch chamber.
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