Perfect! I had several patents but couldn't find this!
Well done, point for you.
BTW: is there anyone who can explain the relations between T. Hall's Convair, built in 1946 as Model 116 and 1947 as Model 118 (but there was a prototype Model 111 around 1945) for Consolidated Vultee Aircraft Corporation in San Diego, California and T. Hall's Aerocar, built in 1946 for Southern Aircraft Corp. (SAC) a division of Portable Products Corp in Texas?