Re: I thought you were being a bit sarcastic, but
@Mongo: Points 5 and 6 are prior art anyway: the claimants in this case should never have been given a patent.
In 1783 Jacques Charles made flights in a hydrogen balloon during which he valved off gas to descend (claim 5) and dropped sand to increase his height (claim 6).
I'm truly amazed how often the US Patent Office screws up by not checking prior art. Does anybody there have even two brain cells to rub together?