Patents by Inventor Wendell H. Snelson

Wendell H. Snelson 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).

  • Injection method for feeding particulate to a process vessel
    Patent number: 6139226
    Abstract: An injection method for feeding a particulate material to a process vessel, including a valve with at least one cavity adapted for receipt of a predetermined volume of particulate and a sweep stream source for providing a sweep stream having flow in a direction generally toward the valve to remove substantially all of the particulate from the cavity of the valve.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: October 31, 2000
    Assignee: Chevon Chemical Company LLC
    Inventors: Kevin W. Lawson, Gary K. Scott, Wendell H. Snelson
  • Injection system and method for feeding particulate to a process vessel
    Patent number: 5851493
    Abstract: An injection system and method for feeding a particulate material to a process vessel, including a valve with at least one cavity adapted for receipt of a predetermined volume of particulate and a sweep stream source for providing a sweep stream having flow in a direction generally toward the valve to remove substantially all of the particulate from the cavity of the valve.
    Type: Grant
    Filed: May 22, 1997
    Date of Patent: December 22, 1998
    Assignee: Chevron Chemical Company
    Inventors: Kevin W. Lawson, Gary K. Scott, Wendell H. Snelson