Patents by Inventor Robin D. Robinson-Brown

Robin D. Robinson-Brown 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).

  • Sliding Sleeve Valve with Feature to Block Flow Through the Tool
    Publication number: 20130025877
    Abstract: Sliding sleeve valves that include a housing with an axial flowbore defined along its length and at least one lateral fluid port disposed through the housing. One or more sliding sleeve members are disposed within the flowbore and carry first and second ball seats. Landing a first ball onto the first ball seat will move the valve from a first position wherein lateral flow is blocked to a second position wherein lateral flow is permitted. Landing a second ball onto the second ball seat will move the valve to a third position wherein lateral flow is again blocked and axial flow is permitted.
    Type: Application
    Filed: October 3, 2012
    Publication date: January 31, 2013
    Applicant: Baker Hughes Incorporated
    Inventors: Robin D. Robinson-Brown, Gregory Lee Hern, Larry Palmer