Patents by Inventor Kenneth Auburn Dial

Kenneth Auburn Dial 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 making upsets for oilfield drill pipe
    Patent number: 8539807
    Abstract: Pipe to be upset is conveyed via walking beam though a series of induction heating coils and one end is heated to a maximum temperature of 2350 degrees F. Thereafter, a robot transports the pipe into a forging machine where the pipe end is upset in one or more die pockets. For those types of pipes where the pipe end temperature falls below an acceptable temperature during upsetting, the robot delivers the pipe end to an auxiliary induction heating coil and is re-heated to an acceptable forging temperature. The robot then transports the pipe back into the forging machine where the pipe end is forged to its final upset dimensions.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: September 24, 2013
    Assignee: National Oilwell Varco, L.P.
    Inventors: Kenneth Auburn Dial, Joe Douglas Toler
  • Process for Making Upsets for Oilfield Drill Pipe
    Publication number: 20110036138
    Abstract: Pipe to be upset is conveyed via walking beam though a series of induction heating coils and one end is heated to a maximum temperature of 2350 degrees F. Thereafter, a robot transports the pipe into a forging machine where the pipe end is upset in one or more die pockets. For those types of pipes where the pipe end temperature falls below an acceptable temperature during upsetting, the robot delivers the pipe end to an auxiliary induction heating coil and is re-heated to an acceptable forging temperature. The robot then transports the pipe back into the forging machine where the pipe end is forged to its final upset dimensions.
    Type: Application
    Filed: August 12, 2009
    Publication date: February 17, 2011
    Inventors: Kenneth Auburn Dial, Joe Douglas Toler