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Systems and applications of lighter-than-air (LTA) platforms

DC CAFC
  • US 9,632,503 B2
  • Filed: 12/01/2016
  • Issued: 04/25/2017
  • Est. Priority Date: 04/18/2001
  • Status: Expired due to Term
First Claim
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1. A system comprising a plurality of airborne platforms, each airborne platform comprising an unmanned balloon;

  • a payload that is separate from the unmanned balloon;

    a transceiver;

    first and second flight termination devices;

    at least two separate power sources for the first and second flight termination devices;

    a sensor;

    a processor;

    a pump;

    a valve; and

    a tether that when broken separates the unmanned balloon and the payload;

    wherein the pump and the valve are configured to change an altitude of the airborne platform;

    wherein the sensor comprises a pressure sensor;

    wherein, in operation, the unmanned balloon substantially drifts along with the wind currents;

    wherein the transceiver is capable of communicating with a communication device that is separate from the unmanned balloon;

    wherein each of the first and second flight termination devices has an ability to independently terminate a flight of the unmanned balloon;

    wherein at least one of the geographical coordinates tracking system comprises a GPS;

    wherein the unmanned balloon is configured to operate above an attitude of about 60,000 feet;

    wherein the unmanned balloon has a flight duration capability that is longer than that of weather balloons that have flight durations of approximately 2 hours;

    wherein the payload is configured to communicate with an additional airborne payload attached to a separate unmanned balloon;

    wherein each of the first and second flight termination devices has an ability to independently terminate a flight of the unmanned balloon based on a determination that further operation of the unmanned balloon presents a danger to air traffic; and

    wherein each of the first and second flight termination devices has an ability to independently terminate a flight of the unmanned balloon based on a determination of a malfunction of the unmanned balloon.

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