Patents by Inventor Thomas Cheavens

Thomas Cheavens has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Extractive distillation process for the production of fuel grade alcohols
    Patent number: 4400241
    Abstract: A novel composition, and extraction process for the dehydration of a hydrated aliphatic, monohydric alcohol to produce a fuel grade alcohol. A select group of alkali-metal and alkaline-earth metal salts are added to and dissolved within a low volatility polyhydric alcohol to form a solution, or solvent extractant, and said solvent extractant contacted and dissolved within said aliphatic, monohydric hydrated alcohol, the solvent extractant distilled, condensed, and a dehydrated fuel grade aliphatic monohydric fuel grade alcohol recovered.
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: August 23, 1983
    Assignee: Improtec
    Inventors: David G. Braithwaite, Thomas Cheavens, Jason M. Voyce