Patents by Inventor Gregory S. Lester

Gregory S. Lester 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).

  • Fluid flow conduit vibrator and method
    Patent number: 5439290
    Abstract: Vibrations are created in a flow conduit by constraining a bluff object having a plurality of positions between which flow of fluid forces the bluff object. In a preferred embodiment, the vibration technique is utilized in a gravel packing tool. Gravel pack sand is placed while the gravel pack tool is vibrated by balls constrained within a wash pipe. A considerably improved gravel pack density is achieved.
    Type: Grant
    Filed: September 21, 1994
    Date of Patent: August 8, 1995
    Assignee: Shell Oil Company
    Inventors: Moye Wicks, III, Gregory S. Lester, Joe O. Esparza
  • Fluid flow conduit vibrator and method
    Patent number: 5361830
    Abstract: Vibrations are created in a flow conduit by constraining a bluff object having a plurality of positions between which flow of fluid forces the bluff object. In a preferred embodiment, the vibration technique is utilized in a gravel packing tool. Gravel pack sand is placed while the gravel pack tool is vibrated by balls constrained within a wash pipe. A considerably improved gravel pack density is achieved.
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: November 8, 1994
    Assignee: Shell Oil Company
    Inventors: Moye Wicks, III, Gregory S. Lester, Joe O. Esparza