Patents by Inventor Richard D. Darling

Richard D. Darling 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).

  • Electrolytic cell separator, tubular member component thereof and methods for manufacturing and using such separator and component
    Patent number: 4283264
    Abstract: A separator for an electrolytic cell or similar cell is made of a porous polymeric material, preferably porous polytetrafluoroethylene, and comprises a plurality of tubular portions of such material with one or two flange(s) at end(s) thereof for sealing to other such flanges and to the cell. The flanges are so constructed that when being sealed in place they do not strain or tear and do not strain or tear the material of the tubular portions. The separator is especially useful as a replacement for deposited asbestos diaphragms in electrolytic cells for the manufacture of chlorine and caustic.
    Type: Grant
    Filed: September 14, 1979
    Date of Patent: August 11, 1981
    Assignee: Hooker Chemicals & Plastics Corp.
    Inventors: Richard D. Darling, Christine A. Lazarz