Abstract:
A balloon having a balloon envelope formed with a plurality of adjacent envelope gores sealed together at their respective edges to form an edge seam between each of the adjacent envelope gores, a tape comprised of fibers applied to a centerline of each of the envelope gores, wherein the envelope gores are constructed such that the edge seam between each of the adjacent envelope gores is longer than the centerline of each of the envelope gores, and wherein a load caused by pressurized lifting gas within the balloon envelope is carried primarily by the fiber tapes on the centerlines of the envelope gores, rather than the edge seams between the adjacent envelope gores.
Abstract:
A payload drag structure having a drag disk comprised of a lightweight, flexible material, a tubular section positioned around a periphery of the drag disk, a flexible member positioned within the tubular section, a cross member having a plurality of aims attached about the periphery of the drag disk, wherein one or more arms of the cross member are adapted for attachment to a payload harness, wherein the payload harness is adapted for attachment to arms of the cross member, and wherein a payload may be secured within the payload harness.
Abstract:
A balloon apparatus is provided having (1) a cage structure that includes (a) a plurality of vertical tendons, where each of the vertical tendons includes a first end and second end, where the first ends of the vertical tendons are all connected to one another and where the second ends of the vertical tendons are all connected to one another and (b) one or more horizontal tendons, where each horizontal tendon is attached to each of the vertical tendons at a corresponding level of the cage structure and (2) a balloon envelope, where the balloon envelop is arranged inside the cage structure and inflatable within the cage structure.
Abstract:
A tendon is provided for supporting a balloon having a balloon envelope. The tendon has first and second end portions that are configured to be secured to sections of the balloon envelope and a main body portion disposed between the ends. The main body portion is configured to support a load caused by inflating the balloon envelope. The first end, second end and main body portions are formed from a plurality of weft and warp fibers disposed as webbing. The warp fibers extend longitudinally through the webbing and the weft fibers extend threadedly from side to side through the warp fibers. An elasticity of the tendon is adjusted by configuring the weft fibers along a particular weft path so as to be spaced apart in the main body portion at a certain distance from each other that is different than a spacing of the weft fibers in the ends.
Abstract:
An assembly for use during manufacture of a balloon envelope that includes a table having first and second levels, an indicator disposed on the first level and a sealing component. The first level is arranged to receive a first sheet portion of material. The indicator is arranged along a lengthwise axis of the table to indicate a position for attaching a tendon to the first sheet portion. The second level is arranged to receive assembled gore portions of the envelope comprising the first sheet portion, the tendon and a second sheet portion material. The sealing component is configured to move along the table and to apply a heat seal to bond together the first and second sheet portions disposed. thereon in order to form at least part of a gore portion of the envelope, such that the tendon is arranged proximate to a centerline of the gore.