Patents by Inventor Lloyd Crockford

Lloyd Crockford 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).

  • Patent number: 8403036
    Abstract: An apparatus for use in a wellbore is provided. The apparatus comprises a mandrel, a sealing element carried on the mandrel, the sealing element being radially expandable from a first run-in diameter to a second set diameter in response to application of axial force on the sealing element, and an extrusion limiting assembly carried on the mandrel and proximate the sealing element. The extrusion limiting assembly comprises a plurality of separate segments and a first circumferential band that retains the plurality of segments in a ring shape and substantially covers an outer circumferential surface of the plurality of segments while in a run-in condition of the apparatus.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: March 26, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Adam K. Neer, Emil Havelka, Lloyd Crockford
  • Publication number: 20120061105
    Abstract: An apparatus for use in a wellbore is provided. The apparatus comprises a mandrel, a sealing element carried on the mandrel, the sealing element being radially expandable from a first run-in diameter to a second set diameter in response to application of axial force on the sealing element, and an extrusion limiting assembly carried on the mandrel and proximate the sealing element. The extrusion limiting assembly comprises a plurality of separate segments and a first circumferential band that retains the plurality of segments in a ring shape and substantially covers an outer circumferential surface of the plurality of segments while in a run-in condition of the apparatus.
    Type: Application
    Filed: September 14, 2010
    Publication date: March 15, 2012
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Adam K. NEER, Emil HAVELKA, Lloyd CROCKFORD
  • Patent number: 6695050
    Abstract: An improved downhole tool apparatus for limiting the extrusion of a packer element. The apparatus includes a packer mandrel having a packer element assembly disposed in a wellbore. Packer retaining shoes are disposed about the packer mandrel at the ends of the packer element assembly. The packer retaining shoes have an inner retainer and an outer retainer. The inner retainer has a plurality of segments having gaps therebetween that expand in width when the retaining shoe is moved from an initial position in which it is disposed about the packer mandrel to an expanded position wherein it engages the wellbore to limit the extrusion of the packer element assembly. The outer retainer is likewise made up of a plurality of segments having gaps therebetween that will expand. The outer retainer engages the wellbore to limit the extrusion of the packer element assembly.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: February 24, 2004
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Donald W. Winslow, Donald R. Smith, Lloyd A. Crockford
  • Patent number: 6695051
    Abstract: An improved downhole tool apparatus for limiting the extrusion of a packer element. The apparatus includes a packer mandrel having a packer element assembly disposed in a wellbore. Packer retaining shoes are disposed about the packer mandrel at the ends of the packer element assembly. The packer retaining shoes have an inner retainer and an outer retainer. The inner retainer has a plurality of segments having gaps therebetween that expand in width when the retaining shoe is moved from an initial position in which it is disposed about the packer mandrel to an expanded position wherein it engages the wellbore to limit the extrusion of the packer element assembly. The outer retainer is likewise made up of a plurality of segments having gaps therebetween that will expand. The inner retainer segments cover the gaps that exist between the outer retainer segments and the outer retainer segments cover the gaps that exist between the inner retainer segments so that extrusion is limited.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: February 24, 2004
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Donald R. Smith, Donald W. Winslow, Lloyd A. Crockford
  • Publication number: 20030226659
    Abstract: An improved downhole tool apparatus for limiting the extrusion of a packer element. The apparatus includes a packer mandrel having a packer element assembly disposed in a wellbore. Packer retaining shoes are disposed about the packer mandrel at the ends of the packer element assembly. The packer retaining shoes have an inner retainer and an outer retainer. The inner retainer has a plurality of segments having gaps therebetween that expand in width when the retaining shoe is moved from an initial position in which it is disposed about the packer mandrel to an expanded position wherein it engages the wellbore to limit the extrusion of the packer element assembly. The outer retainer is likewise made up of a plurality of segments having gaps therebetween that will expand. The inner retainer segments cover the gaps that exist between the outer retainer segments and the outer retainer segments cover the gaps that exist between the inner retainer segments so that extrusion is limited.
    Type: Application
    Filed: June 10, 2002
    Publication date: December 11, 2003
    Inventors: Donald R. Smith, Donald W. Winslow, Lloyd A. Crockford
  • Publication number: 20030226660
    Abstract: An improved downhole tool apparatus for limiting the extrusion of a packer element. The apparatus includes a packer mandrel having a packer element assembly disposed in a wellbore. Packer retaining shoes are disposed about the packer mandrel at the ends of the packer element assembly. The packer retaining shoes have an inner retainer and an outer retainer. The inner retainer has a plurality of segments having gaps therebetween that expand in width when the retaining shoe is moved from an initial position in which it is disposed about the packer mandrel to an expanded position wherein it engages the wellbore to limit the extrusion of the packer element assembly. The outer retainer is likewise made up of a plurality of segments having gaps therebetween that will expand. The outer retainer engages the wellbore to limit the extrusion of the packer element assembly.
    Type: Application
    Filed: June 10, 2002
    Publication date: December 11, 2003
    Inventors: Donald W. Winslow, Donald R. Smith, Lloyd A. Crockford