Patents by Inventor Ralph C. Hansen

Ralph C. Hansen 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: 4013018
    Abstract: Air inflated covers for protecting merchandise, including glass, lumber and other building materials, during transportation on carriers such as open railroad cars and trucks; with means for connecting sections of the covers together and for anchoring the covers to the carrier.
    Type: Grant
    Filed: January 20, 1975
    Date of Patent: March 22, 1977
    Assignee: Libbey-Owens-Ford Company
    Inventors: Ralph C. Hansen, Ray P. Miles
  • Patent number: 3955676
    Abstract: A shipping rack for transporting groups of flat sheets of frangible material, such as glass, on their edges and having at least two longitudinally movable A-frame sections interconnected by two adjustable diagonally disposed cross braces or struts wherein each A-frame section has an elongated transverse horizontal base which has a pair of inwardly and downwardly inclined surfaces extending from the ends thereof and a narrow upright triangular framework mounted at the center of the base which provides a pair of oppositely facing inclined L-shaped supporting surfaces for supporting the groups of sheets on their edges. The opposing faces of the A-frame sections are each provided with a pair of offset, vertically spaced pivot pin connections for attachment of the ends of the cross struts.
    Type: Grant
    Filed: September 20, 1974
    Date of Patent: May 11, 1976
    Assignee: Libbey-Owens-Ford Company
    Inventors: Ralph C. Hansen, Rae E. Vande Water, Owen W. Sherwin