Abstract:
The present disclosure relates to a balloon system that includes a flexible volume balloon hull configured to contain a lifting gas, a flexible volume ballonet contained within said balloon hull configured to contain a refrigerant gas and a refrigerant gas transfer device in fluid communication with the ballonet to control the balloon's vertical ascent and descent.
Patent Number:
9,568,918
Date Of Issue:
02/14/2017
Inventors:
William D. Perry
Full Text: