Abstract:
High-altitude balloons and apparatuses for filling such high-altitude balloons are provided. As an example, an apparatus for filling a high-altitude balloon includes a tube extending through envelope material of the balloon is provided. The apparatus also includes a flange connected to a first end of the tube. The flange is connected to an interior surface of the balloon. A fitting is connected to a second end of the tube. The fitting is configured for attachment with an apparatus for filling the balloon with lift gas. In addition, methods of filling high-altitude balloons with lift gas and methods of manufacturing balloons are also provided.
Abstract:
An apparatus including a balloon envelope, a cutting blade secured to a blade block; a cutter guide rail secured above the balloon envelope, and an arm rotatable about a pivot point having an end secured to the blade block, wherein the end of the arm extends past the blade block, wherein the arm is releasably secured by a release member, and wherein release of the arm from the release member allows for a rotation of the arm, wherein the rotation of the end of the arm is guided by the cutter guide rail such that the cutting blade maintains contact with and cuts the balloon envelope during the rotation of the arm.
Abstract:
High-altitude balloons and apparatuses for filling such high-altitude balloons are provided. As an example, an apparatus for filling a high-altitude balloon includes a tube extending through envelope material of the balloon is provided. The apparatus also includes a flange connected to a first end of the tube. The flange is connected to an interior surface of the balloon. A fitting is connected to a second end of the tube. The fitting is configured for attachment with an apparatus for filling the balloon with lift gas. In addition, methods of filing high-altitude balloons with lift gas and methods of manufacturing balloons are also provided.
Abstract:
An apparatus for securing a plurality of tendons to a balloon includes a first and second plate and a cable long enough to extend around a circumference of the first plate. The first plate has a plurality of slots and one more mating ports. Each slot is configured to allow a given tendon from the plurality of tendons to extend through the first plate by inserting a tendon within the slot. The second plate has a surface with one or more mating members attached. Each mating member is configured to connect the first and second plates together by mating with at least one of the one or more mating ports. The cable is configured to pass between the first and second plates so as to couple with each tendon within the plurality of slots in order to secure the tendons to a balloon structure.
Abstract:
A system for terminating flight of a balloon having a balloon envelope is provided. The system includes an apparatus attached to the balloon. The apparatus includes a flexible tube that has first and second ends with a hollow tube portion disposed there between and a device attached to the flexible tube. The first end of the tube is sealed around a preconfigured opening in a balloon envelope and the second end is sealed shut. The device includes a main body that has an opening holding an actuating member that has a cavity and a cutting element. The cavity is arranged to hold at least a portion of the flexible tube. When activated, the device causes contact between the actuating member and the cutting element so as to cut open the partial portion of the flexible tube for allowing lift gas to escape the balloon envelope through the hollow tube portion.
Abstract:
High-altitude balloons and apparatuses for filling such high-altitude balloons are provided. As an example, an apparatus for filling a high-altitude balloon includes a tube extending through envelope material of the balloon is provided. The apparatus also includes a flange connected to a first end of the tube. The flange is connected to an interior surface of the balloon. A fitting is connected to a second end of the tube. The fitting is configured for attachment with an apparatus for filling the balloon with lift gas. In addition, methods of filling high-altitude balloons with lift gas and methods of manufacturing balloons are also provided.
Abstract:
An apparatus including a balloon envelope, a cutting blade secured to a blade block; a cutter guide rail secured above the balloon envelope, and an arm rotatable about a pivot point having an end secured to the blade block, wherein the end of the arm extends past the blade block, wherein the arm is releasably secured by a release member, and wherein release of the arm from the release member allows for a rotation of the arm, wherein the rotation of the end of the arm is guided by the cutter guide rail such that the cutting blade maintains contact with and cuts the balloon envelope during the rotation of the arm.
Abstract:
High-altitude balloons and apparatuses for filling such high-altitude balloons are provided. As an example, an apparatus for filling a high-altitude balloon includes a tube extending through envelope material of the balloon is provided. The apparatus also includes a flange connected to a first end of the tube. The flange is connected to an interior surface of the balloon. A fitting is connected to a second end of the tube. The fitting is configured for attachment with an apparatus for filling the balloon with lift gas. In addition, methods of filling high-altitude balloons with lift gas and methods of manufacturing balloons are also provided.
Abstract:
Methods and apparatus are disclosed for an apex fitting for securing to a high altitude balloon. An example apparatus involves: (a) a base plate defining an opening, where the base plate is configured to be securable to an exterior of a balloon envelope, (b) at least one stud coupled to the base plate and configured to be securable to a tendon, (c) a retention ring defining at least one opening configured to receive the at least one stud, (d) a fill-port body defining a cavity, wherein a flange is coupled to the fill-port body, wherein the fill-port body is arranged coaxially with and extends through the opening of the base plate such that the flange lies adjacent to the bottom surface of the base plate, and (e) a locking body coupled to the fill-port body, wherein the locking body defines an opening arranged coaxially with the fill-port body.
Abstract:
An optical communication terminal is configured to operate in two different complementary modes of full duplex communication. In one mode, the terminal transmits light having a first wavelength and receives light having a second wavelength along a common free space optical path. In the other mode, the terminal transmits light having the second wavelength and receives light having the first wavelength. The terminal includes a steering mirror that directs light to and from a dichroic element that creates different optical paths depending on wavelength, and also includes spatially separated emitters and detectors for the two wavelengths. A first complementary emitter/detector pair is used in one mode, and a second pair is used for the other mode. The optical components are arranged such that adjusting an orientation of the steering mirror aligns the terminal to communication over a given free space optical link using either the first or second complementary pair.