Lighter-than-air vertical load lifting system
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United States of America Patent
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Mar 27, 2012
Grant Date -
May 28, 2009
app pub date -
Nov 26, 2007
filing date -
Nov 26, 2007
priority date (Note) -
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Abstract
An aerial load lifting system features a non-rigid or blimp-type dirigible providing a lighter-than-air envelope that is placed within a structural shell. The system is designed so that the envelope provides essentially neutral buoyancy for the structure, leaving only the cargo weight to be lifted by the rotors. The structural shell supports the engine, fuel tank, rotors, and transmission system that power the lift and vectoring of the aircraft, in addition to supporting the cargo load. The structural shell transfers the weight of the load directly to the location of the rotors, thus avoiding stress on the envelope.
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