Patents by Inventor Charles J. Cunningham

Charles J. Cunningham 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).

  • Vacuum guide used in flexible sheet material treatment
    Patent number: 4912948
    Abstract: Treating flexible sheet material, including paper, using vacuum guides adjacent to short-dwell applicators intimately contacting the sheet, provides improved application of fluid treating composition, particularly at high speeds.
    Type: Grant
    Filed: March 22, 1985
    Date of Patent: April 3, 1990
    Assignee: Union Carbide Chemicals and Plastics Company Inc.
    Inventors: Russell L. Brown, Charles J. Cunningham
  • Foam applicator used in paper treatment
    Patent number: 4581254
    Abstract: Foam applicators having specific lip configurations and substrate orientation, used for applying foamed treating compositions to substrates, including rapidly moving paper, provide uniform distribution of treating agent onto the substrate.
    Type: Grant
    Filed: March 22, 1985
    Date of Patent: April 8, 1986
    Assignee: Union Carbide Corporation
    Inventors: Charles J. Cunningham, Russell L. Brown
  • Foam composition used in paper treatment
    Patent number: 4571360
    Abstract: Foamable compositions having low concentrations of select foaming agents provide uniform distribution of paper treating agents onto moving paper, including high speed applications, and treated paper having unimpaired properties.
    Type: Grant
    Filed: March 22, 1985
    Date of Patent: February 18, 1986
    Assignee: Union Carbide Corporation
    Inventors: Russell L. Brown, George M. Bryant, Charles J. Cunningham
  • Method and apparatus for treating open-weave substrates with foam
    Patent number: 4343835
    Abstract: Method and apparatus for applying foam to an open-weave substrate. The apparatus contains angled shear strips to shear the foam positioned above a foam outlet. The shear strips, enclosed at each end, define a chamber above the foam outlet having open top and bottom sides for sequential contact of both sides of the substrate with the foam as the substrate travels across the outlet and both open top and bottom sides of the chamber.
    Type: Grant
    Filed: December 17, 1980
    Date of Patent: August 10, 1982
    Assignee: Union Carbide Corporation
    Inventors: Allen P. Jones, Charles J. Cunningham