Patents by Inventor Frederick R. Campbell

Frederick R. Campbell 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).

  • Divider box assembly system
    Patent number: 4398901
    Abstract: System for assembling a divider box from a main body blank, separate end panels and at least one divider panel. The end and divider panels are delivered to a container-erecting station where the panels are secured to the main body blank while the container is being erected.
    Type: Grant
    Filed: March 16, 1981
    Date of Patent: August 16, 1983
    Assignee: Crown Zellerbach Corporation
    Inventor: Frederick R. Campbell
  • Box assembly system
    Patent number: 4342563
    Abstract: An apparatus and method for forming a box having a box body comprising interconnected bottom, side and end walls, shoulder elements connected to the side walls and securing flaps connected to the shoulder elements.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: August 3, 1982
    Assignee: Crown Zellerbach Corporation
    Inventor: Frederick R. Campbell