Patents by Inventor Robert P. Sellberg

Robert P. Sellberg 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).

  • Head plate for vehicle axle
    Patent number: 8616566
    Abstract: A vehicle axle is provided with a main body defined by the combination of a channel having an inverted U-shaped configuration and a bottom plate. The ends of the main body are curved upwardly to define a pair of gooseneck portions. Axle head sections are formed at the ends of the axle and are closed off by end extensions extending from the front and rear walls of the channel and a cover flap extension extending from the top wall of the channel. A head plate having a rounded back edge and/or a pocket is inserted within the space between the cover flap and the top edges of the end extensions.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: December 31, 2013
    Assignee: Hendrickson USA, L.L.C.
    Inventors: John S. Bubulka, Sammy C. Lumetta, Ashley T. Dudding, Jerry M. Lovett, Robert P. Sellberg
  • HEAD PLATE FOR VEHICLE AXLE
    Publication number: 20120146396
    Abstract: A vehicle axle is provided with a main body defined by the combination of a channel having an inverted U-shaped configuration and a bottom plate. The ends of the main body are curved upwardly to define a pair of gooseneck portions. Axle head sections are formed at the ends of the axle and are closed off by end extensions extending from the front and rear walls of the channel and a cover flap extension extending from the top wall of the channel. A head plate having a rounded back edge and/or a pocket is inserted within the space between the cover flap and the top edges of the end extensions.
    Type: Application
    Filed: December 9, 2011
    Publication date: June 14, 2012
    Inventors: John S. Bubulka, Sammy C. Lumetta, Ashley T. Dudding, Jerry M. Lovett, Robert P. Sellberg
  • Railway freight car
    Patent number: 4917019
    Abstract: A railway car comprises a center sill with a crossbearer, webs and end bolsters extending across thereof. A light side stiffener interconnects the projecting ends of said webs and spans between the bolster and the crossbearer. A shear plate covers a trapezoidal end frame extending from the bolster. The frame includes inclined braces buttressing a pair of cantilivered brackets projecting toward and horizontally overlapping similar brackets of the adjacent car.
    Type: Grant
    Filed: May 12, 1989
    Date of Patent: April 17, 1990
    Assignee: Trinity Industries, Inc.
    Inventors: Harold E. Hesch, Phillip G. Przybylinski, Robert P. Sellberg
  • Railway freight car
    Patent number: 4864938
    Abstract: A railway car comprises a center sill with a crossbearer, webs and end bolsters extending across thereof. A light side stiffener interconnects the projecting ends of said webs and spans between the bolster and the crossbearer. A shear plate covers a trapezoidal end frame extending from the bolster. The frame includes inclined braces buttressing a pair of cantilevered brackets projecting toward and horizontally overlapping similar brackets of the adjacent car.
    Type: Grant
    Filed: December 29, 1987
    Date of Patent: September 12, 1989
    Assignee: Trinity Industries, Inc.
    Inventors: Harold E. Hesch, Phillip G. Przybylinski, Robert P. Sellberg