Patents by Inventor Gerald B. Nelson

Gerald B. Nelson 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).

  • Patent number: 4436502
    Abstract: A cylindrical housing and auger drum assembly is mounted to extend from the side of a cubing machine of the type having an annular die assembly, a circular die cavity on the inner periphery of the die assembly, and at least one press wheel that is received in the die cavity. The auger drum carries a rigid blade that forms an auger flight, and which terminates a short distance from the outer end of the drum. A flexible, resilient tip is mounted on the outer end of the rigid blade, and substantially fills the space provided between the auger drum, the housing and the die cavity, the outer edge of the tip being positioned at the die cavity. The tip functions to supply an optimum flow of feed stock to the die cavity, but will flex to allow bypassing when plugging or jamming conditions exist.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: March 13, 1984
    Assignee: Papakube Corporation
    Inventors: Garth C. Nelson, Henry J. White, Gerald B. Nelson
  • Patent number: 4148952
    Abstract: A stable block is formed of shredded paper or paper-like material (herein after referred to as "paper") and a binder such as ligninsulfonate. The block is formed by shredding paper, mixing the shreds with a binder such as ligninsulfonate resin, and placing the same in a heated matrix of a die; and while in the die, subjecting the mixture to high pressure.
    Type: Grant
    Filed: October 21, 1974
    Date of Patent: April 10, 1979
    Assignee: Papakube Corp.
    Inventors: Gerald B. Nelson, William J. Prindle
  • Patent number: 4060363
    Abstract: Apparatus for making a stable block from paper including means for providing a plurality of moist paper fragments, means for roughening the outer surface of a group of the moist paper fragments, and means for compressing the group of paper fragments to form the group of paper fragments into a stable block without the addition of an adhesive.
    Type: Grant
    Filed: November 20, 1975
    Date of Patent: November 29, 1977
    Assignee: Papakube Corporation
    Inventor: Gerald B. Nelson
  • Patent number: 3949036
    Abstract: A method of making a stable block from paper comprising providing a plurality of moist paper fragments, roughening the outer surface of a group of the moist paper fragments, and compressing the group of paper fragments to form the group of paper fragments into a stable block without the addition of an adhesive.
    Type: Grant
    Filed: July 26, 1973
    Date of Patent: April 6, 1976
    Assignee: Papakube Corporation
    Inventor: Gerald B. Nelson