That suggestion just popped up again under the Planet Satellite
If anyone has access to the Nuffield College Library. Oxford, it holds the papers of F.A. Lindemann, Viscount Cherwell (CSAC 80/4/81). http://www.nuffield.ox.ac.uk/library/archives/Cherwell.pdf
Listed under Inventions and ideas, C. D. Burney is the following (p.156, pdf p.158 of 233):
G.447 Typescript, with accompanying diagrams and drawings describing proposals for the construction in U.S.A. of 'a large Amphibian Flying Boat, capable of carrying four "Satellite" planes, each capable of carrying its own 18" torpedo or one 1500 lb. "Diving Bomb"'. The typescript was originally contained in a plastic folder labelled 'Burney Amphibian and Satellites', n.d., c.early 1940. n.d.
There's also mention (G.446) of the "Toraplane (gliding torpedo) and Doravane (gliding bomb), October 1939-March 1940." [Sir Charles also submitted a design for a 'rocket bomb' sometime between 1940 and 1942.] Searching for Sir Charles Denniston Burney reveals no relevant patent. I suppose being wartime, no patent applications were made.
The Planet Satellite was designed by JND Heenan (of Heenan, Winn and Steel, London-based consulting engineers). Major Heenan and CJF Winn worked on gas turbines during WWII. As you said, no obvious connections between Heenan and Burney.