Patents by Inventor Osman J. Walker

Osman J. Walker 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).

  • Nip control method and apparatus
    Patent number: 4384514
    Abstract: This invention provides a method and an apparatus for use in controlling a nip through which material is passed. The apparatus comprises at least one means for generating a magnetic field and means for locating the magnetic field generating means at a selected position along the length of one of the pressing elements, adjacent to the element, to thereby affect only a portion of the length of the element, thus controlling only that portion of the length of the nip which is generally aligned with the affected portion of the pressing element.
    Type: Grant
    Filed: March 3, 1981
    Date of Patent: May 24, 1983
    Assignee: Consolidated-Bathurst Inc.
    Inventors: Rene Larive, Osman J. Walker
  • Disposal of paper pulp mill sludge
    Patent number: 4030968
    Abstract: A process for the disposal of paper pulp mill sludge by incorporating the sludge in the digestion step of a wood pulping operation without detrimental effects on the quality of the pulp obtained. In one aspect, the sludge is surplus sludge which is obtained from a system which microbiologically purifies spent wood pulping liquor by aeration and sedimentation.
    Type: Grant
    Filed: July 1, 1976
    Date of Patent: June 21, 1977
    Assignee: Consolidated-Bathurst Limited
    Inventors: Krishan N. Goel, Osman J. Walker