Patents by Inventor Ewan O. Robb

Ewan O. Robb 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).

  • Remote actuated plug apparatus
    Patent number: 6431276
    Abstract: Apparatus and associated methods are provided for remotely actuating a plug apparatus in a subterranean well. In a described embodiment, a plug apparatus has a plug member blocking fluid flow through one of two flow passages of the plug apparatus. A predetermined fluid pressure applied to one of the flow passages permits the plug member to be expended from the plug apparatus.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: August 13, 2002
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Ewan O. Robb, Jeffrey W. Huggins, Roderick B. Falconer, Michael Gardner
  • Remote actuated plug method
    Patent number: 6161622
    Abstract: Apparatus and associated methods are provided for remotely actuating a plug apparatus in a subterranean well. In a described embodiment, a plug apparatus has a plug member blocking fluid flow through one of two flow passages of the plug apparatus. A predetermined fluid pressure applied to one of the flow passages permits the plug member to be expended from the plug apparatus.
    Type: Grant
    Filed: November 2, 1998
    Date of Patent: December 19, 2000
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Ewan O. Robb, Jeffry W. Huggins, Roderick B. Falconer, Michael Gardner
  • Plug apparatus having a dispersible plug member and a fluid barrier
    Patent number: 6076600
    Abstract: A plug apparatus is provided which includes a dispersible plug member and a fluid barrier. In one embodiment described herein, a fluid barrier is utilized to prevent contamination of fluid contained in a plug apparatus. The fluid is thus available for use in dispersing a plug member of the plug apparatus, regardless of the types of other fluids present in a well in which the apparatus is installed. Various configurations of fluid barriers are also provided.
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: June 20, 2000
    Assignee: Halliburton Energy Services, Inc.
    Inventors: James D. Vick, Jr., David L. Reesing, Ewan O. Robb