US 9,809,294 B2
High altitude balloon with altitude control
Taylor Evan Matthews, San Diego, CA (US); Anthony Paul Fry, San Diego, CA (US); Jessica Marie Lavigne, San Diego, CA (US); and Rafy Uddin Athar, San Diego, CA (US)
Assigned to Northrop Grumman Systems Corporation, Falls Church, VA (US)
Filed by NORTHROP GRUMMAN SYSTEMS CORPORATION, Falls Church, VA (US)
Filed on Sep. 23, 2015, as Appl. No. 14/862,466.
Prior Publication US 2017/0081012 A1, Mar. 23, 2017
Int. Cl. B64B 1/40 (2006.01)
CPC B64B 1/40 (2013.01) 19 Claims
OG exemplary drawing
 
1. A high altitude balloon comprising:
a balloon film;
a lifting gas disposed within the balloon film;
a payload operably coupled to the balloon film, the payload generating waste heat during operation of the payload; and
a heat transfer element operably coupled between the payload and the balloon film configured to transfer the waste heat from the payload to the lifting gas causing a change in buoyancy of the high altitude balloon;
wherein the payload is an electronic device, and wherein the waste heat is generated by the electronic device.