I thought you were being a bit sarcastic, but
...a couple of claims:
5. The free floating constellation communications system of claim 2, wherein said regulator regulates the floating of said platform within a predetermined altitude range and comprises a quantity of contained gas having a density less than the density of air within said predetermined altitude range and a controllable vent by which a portion of said quantity of contained gas can be released to reduce the buoyancy of said platform.
6. The free floating constellation communications system of claim 2, wherein said regulator comprises a quantity of high density material carried onboard said platform and a release device by which a portion of said high density matter can be released to increase buoyancy of said platform.
Once-upon-a-time the point of patents was disclosing sufficient detail of an invention that a "person having ordinary skill in the art" could then employ it, not that said PHOSITA exclaims "well, duh!"