Patents by Inventor John W. Hartloff

John W. Hartloff 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: 5367961
    Abstract: A pallet support leg having a first short, hollow columnar member with a lower base portion which is indented to form a second hollow columnar member. The second member protrudes upwardly within the first member by no more than about one-third the height of the first member. A circular flange protrudes outwardly from and encircles an upper portion of the first member to support the underside of a sheet of pallet material. At least one semi-circular flange or blade protrudes outwardly from the first member, above the circular flange, and extends around a radial segment of the first member to engage the upper surface of the pallet material, sandwiching the pallet material between the two flanges or between the blades and the circular flange. A first set of support ribs are fixed between the underside of the circular flange and the first member. The ribs are disposed radially around the first member to add structural rigidity to the circular flange.
    Type: Grant
    Filed: October 28, 1992
    Date of Patent: November 29, 1994
    Inventors: Hiroshi Arai, Clifford B. Hewson, John W. Hartloff