Patents by Inventor Roy A. Baker

Roy A. Baker 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).

  • Removal of sulfur from aqueous suspension using filtration
    Patent number: 4631068
    Abstract: There is disclosed a process for the removal of sulfur from an aqueous sulfur-containing suspension through sulfur coalescence. Sulfur coalescence is initiated by passing the aqueous sulfur-containing suspension through a multi-passage filtering media. In one embodiment of the present invention, the aqueous sulfur-containing suspension is passed through a filtering media comprised of randomly oriented fibrous filter material. In another embodiment of the present invention, the aqueous sulfur containing suspension is passed through sintered metal filters. Optionally, downstream polishing, or filtration, steps using either the above enumerated filters or combinations of the above filters can also be used.
    Type: Grant
    Filed: July 18, 1985
    Date of Patent: December 23, 1986
    Assignee: Stauffer Chemical Company
    Inventors: Roy A. Baker, Rocky C. Costello, Michael J. Engel