Patents by Inventor Frank Farnworth

Frank Farnworth 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).

  • Process for the production of exhaust gas filters
    Patent number: 4287098
    Abstract: A large scale method is provided for the production of exhaust and industrial gas filters comprising aluminium oxide produced by the decomposition of alumina hydrate deposited on a substrate.A plurality of substrates are mounted on a stand, immersed in an alkali metal aluminate solution while the stand is subjected to motion through the solution, thereby causing the solution to flow over and through the substrates while alumina hydrate is deposited on them.
    Type: Grant
    Filed: February 26, 1980
    Date of Patent: September 1, 1981
    Assignee: Texaco Limited
    Inventors: Frank Farnworth, Michael H. Clubley
  • Ion exchange material
    Patent number: 4025608
    Abstract: Zirconium phosphate is made by reacting a zirconium salt with phosphoric acid or a phosphate in a liquid medium, the zirconium salt being insoluble in water. A granular product may be obtained having a grain size controlled by that of the salt. The product may be used as an ion-exchange material.
    Type: Grant
    Filed: December 16, 1974
    Date of Patent: May 24, 1977
    Assignee: Magnesium Elektron Limited
    Inventors: David S. Tawil, Michael H. Clubley, Frank Farnworth