Patents by Inventor Rod Keefe

Rod Keefe 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).

  • Process for rail restoration and rail manufacture using welding
    Patent number: 8367960
    Abstract: A method for restoring a worn rail section includes cleaning a worn surface of a rail section to expose a clean metal surface, heating the rail section to a first temperature before welding, welding new metal on the clean metal surface of the rail section after heating the rail section to the first temperature, heating the rail section to a second temperature after the welding to heat-treat a heat-affected area caused by the welding, and shaping the rail section, wherein the welding is performed by a gas metal arc welding (GMAW) process.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: February 5, 2013
    Assignee: CSX Transportation
    Inventor: Rod Keefe
  • PROCESS AND APPARATUS FOR RAIL RESTORATION AND RAIL MANUFACTURE USING WELDING
    Publication number: 20110297752
    Abstract: A method for restoring a worn rail section includes cleaning a worn surface of a rail section to expose a clean metal surface, heating the rail section to a first temperature before welding, welding new metal on the clean metal surface of the rail section after heating the rail section to the first temperature, heating the rail section to a second temperature after the welding to heat-treat a heat-affected area caused by the welding, and shaping the rail section, wherein the welding is performed by a gas metal arc welding (GMAW) process.
    Type: Application
    Filed: June 6, 2011
    Publication date: December 8, 2011
    Applicant: CSX Transportation
    Inventor: ROD KEEFE