Patents by Inventor Donald C. Nicholas

Donald C. Nicholas 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).

  • Web-stretching process
    Patent number: 4652409
    Abstract: A process for producing a stretched web of plastics material wherein a web of plastics material is passed through an apparatus in which the web, gripped at its edges by web gripping devices mounted on carriages which run on guide rails is stretched by increasing the distance between adjacent gripping devices by altering the degree of extension of an articulated chain to which the carriages are attached.
    Type: Grant
    Filed: November 23, 1984
    Date of Patent: March 24, 1987
    Assignee: Bakelite Xylonite Limited
    Inventors: Leonard Leese, Donald C. Nicholas, Gordon C. R. Smith, Geoffrey F. Stokes
  • Web stretching apparatus
    Patent number: 4614011
    Abstract: Web-stretching apparatus wherein the web, gripped by web-gripping devices mounted to carriages which run on guide rails, is stretched by increasing the distance between adjacent gripping devices by altering the degree of extension of an articulated chain to which the carriages are attached.
    Type: Grant
    Filed: November 26, 1985
    Date of Patent: September 30, 1986
    Assignee: BXL Plastics Limited
    Inventors: Donald C. Nicholas, Gordon C. R. Smith
  • Plastics shaped articles
    Patent number: 4151159
    Abstract: A plastics composition comprising an olefin polymer, a styrene or methyl-substituted styrene polymer, a butyl rubber and optionally an ethylene/vinyl polymer, which composition can be stretched to form a paper-like sheet.
    Type: Grant
    Filed: November 22, 1976
    Date of Patent: April 24, 1979
    Assignee: Bakelite Xylonite Limited
    Inventors: Charles L. Geall, Leonard Leese, Donald C. Nicholas, Gordon C. R. Smith, Geoffrey F. Stokes