Patents by Inventor Joseph C. Sherwood

Joseph C. Sherwood 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).

  • Treating waste water contaminated with a low concentration of latex
    Patent number: 4454048
    Abstract: The separability of latex floc dispersed in water is improved by adding a small proportion of portland cement thereto.
    Type: Grant
    Filed: April 22, 1983
    Date of Patent: June 12, 1984
    Assignee: SCM Corporation
    Inventors: Richard T. Brunbeck, Joseph C. Sherwood
  • Treatment of water contaminated with dispersed resin
    Patent number: 4383928
    Abstract: Dilute, aqueous waste dispersions of ionized film-forming resins are flocculated with Portland cement, and the resulting floc is allowed to consolidate for disposal. The consolidated floc is suitable for landfill or other use.
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: May 17, 1983
    Assignee: SCM Corporation
    Inventors: Joseph C. Sherwood, Richard T. Brunbeck
  • Process for treating aqueous latex paint waste
    Patent number: 4312759
    Abstract: A process for producing leach-resistant consolidate from the slack sludge precipitated from the flocculating of dilute aqueous latex paint waste is shown. It comprises: rapidly heating said slack sludge with agitation to a temperature which at least approaches the boiling point of the water present in said sludge; settling the resulting heated mixture into a consolidate fraction and a serum fraction; and separating said fractions. Such consolidate can be used for landfill, structural units, or dispersed as a component of a paint.
    Type: Grant
    Filed: December 12, 1980
    Date of Patent: January 26, 1982
    Assignee: SCM Corporation
    Inventors: Joseph C. Sherwood, Brunbeck, Richard T.