Patents by Inventor Michael T. Charters

Michael T. Charters 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).

  • Apparatus for producing kraft type pulp
    Patent number: 3989588
    Abstract: Apparatus for producing pulp for use in the manufacture of kraft type products such as linerboard and bag grade paper comprising means for steaming small segments of fibrous material and defiberizing the same in a pressurized atmosphere and at an elevated temperature, means for mixing the defiberized material, while still hot, with hot kraft pulp and means connected to receive and then refine the mixture so obtained.
    Type: Grant
    Filed: February 10, 1975
    Date of Patent: November 2, 1976
    Assignee: The Bauer Bros. Co.
    Inventors: Michael T. Charters, Franklin F. Landis