Patents by Inventor John Hemmerlin

John Hemmerlin 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).

  • Crosshead design for universal testing machine
    Patent number: 7540201
    Abstract: The crosshead for a universal testing machine includes a interior face which is formed at angle to the front face which is typically about 17°. A wedge pocket is machined with walls perpendicular to the interior face, and therefore at an angle other than perpendicular to the front surface of the crosshead. This allows a rectangular steel plate to be oriented to match the machine column locations. Therefore, the material cost is significantly reduced as no special casting shape is required.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: June 2, 2009
    Assignee: Illinois Tool Works Inc.
    Inventor: John Hemmerlin
  • CROSSHEAD DESIGN FOR UNIVERSAL TESTING MACHINE
    Publication number: 20090120199
    Abstract: The crosshead for a universal testing machine includes a interior face which is formed at angle to the front face which is typically about 17°. A wedge pocket is machined with walls perpendicular to the interior face, and therefore at an angle other than perpendicular to the front surface of the crosshead. This allows a rectangular steel plate to be oriented to match the machine column locations. Therefore, the material cost is significantly reduced as no special casting shape is required.
    Type: Application
    Filed: November 9, 2007
    Publication date: May 14, 2009
    Inventor: John Hemmerlin