Patents by Inventor Timothy R. Gwartney

Timothy R. Gwartney 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).

  • Wedge Driven Pipe Bending Machine
    Publication number: 20130333434
    Abstract: A pipe bending machine has a stiff-back which is driven by a pivoting wedge. A linkage applies force from the actuator to the wedge in a direction parallel to a longitudinal axis of the stiff-back. The stiff-back pivots on a first fulcrum and the wedge slides on a bed which pivots on a second fulcrum. The actuator drives the wedge between the stiff-back and the bed to rotate the stiff-back at the first fulcrum and bend the pipe seated in the stiff-back against the pipe bending face of a die. The conversion of the longitudinal force applied to the wedge into a transverse force applied to the stiff-back provides a significant mechanical advantage which varies directionally as the stiff-back rotates about its fulcrum to maintain a constant force on the stiff-back.
    Type: Application
    Filed: August 19, 2013
    Publication date: December 19, 2013
    Applicant: CRC-Evans Pipeline International, Inc.
    Inventors: Jeffrey C. Scoville, Timothy R. Gwartney, Stephen Sears
  • Wedge Driven Pipe Bending Machine
    Publication number: 20130333438
    Abstract: A pipe bending machine has a stiff-back which is driven by a pivoting wedge. A linkage applies force from the actuator to the wedge in a direction parallel to a longitudinal axis of the stiff-back. The stiff-back pivots on a first fulcrum and the wedge slides on a bed which pivots on a second fulcrum. The actuator drives the wedge between the stiff-back and the bed to rotate the stiff-back at the first fulcrum and bend the pipe seated in the stiff-back against the pipe bending face of a die. The conversion of the longitudinal force applied to the wedge into a transverse force applied to the stiff-back provides a significant mechanical advantage which varies directionally as the stiff-back rotates about its fulcrum to maintain a constant force on the stiff-back.
    Type: Application
    Filed: August 19, 2013
    Publication date: December 19, 2013
    Applicant: CRC-Evans Pipeline International, Inc.
    Inventors: Jeffrey C. Scoville, Timothy R. Gwartney, Stephen Sears
  • Wedge driven pipe bending machine
    Patent number: 8511123
    Abstract: A pipe bending machine has a stiff-back which is driven by a pivoting wedge. A linkage applies force from the actuator to the wedge in a direction parallel to a longitudinal axis of the stiff-back. The stiff-back pivots on a first fulcrum and the wedge slides on a bed which pivots on a second fulcrum. The actuator drives the wedge between the stiff-back and the bed to rotate the stiff-back at the first fulcrum and bend the pipe seated in the stiff-back against the pipe bending face of a die. The conversion of the longitudinal force applied to the wedge into a transverse force applied to the stiff-back provides a significant mechanical advantage which varies directionally as the stiff-back rotates about its fulcrum to maintain a constant force on the stiff-back.
    Type: Grant
    Filed: May 10, 2010
    Date of Patent: August 20, 2013
    Assignee: CRC-Evans Pipeline International, Inc.
    Inventors: Jeffrey C. Scoville, Timothy R. Gwartney, Stephen Sears
  • Wedge Driven Pipe Bending Machine
    Publication number: 20110271734
    Abstract: A pipe bending machine has a stiff-back which is driven by a pivoting wedge. A linkage applies force from the actuator to the wedge in a direction parallel to a longitudinal axis of the stiff-back. The stiff-back pivots on a first fulcrum and the wedge slides on a bed which pivots on a second fulcrum. The actuator drives the wedge between the stiff-back and the bed to rotate the stiff-back at the first fulcrum and bend the pipe seated in the stiff-back against the pipe bending face of a die. The conversion of the longitudinal force applied to the wedge into a transverse force applied to the stiff-back provides a significant mechanical advantage which varies directionally as the stiff-back rotates about its fulcrum to maintain a constant force on the stiff-back.
    Type: Application
    Filed: May 10, 2010
    Publication date: November 10, 2011
    Inventors: Jeffrey C. Scoville, Timothy R. Gwartney, Stephen Sears