Patents by Inventor Hubert Garrison

Hubert Garrison 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).

  • Encapsulated back-up system for use with seal system
    Publication number: 20070290454
    Abstract: Disclosed is an anti-extrusion assembly used in conjunction with an expandable packing device. The assembly comprises two slotted metallic rings encapsulated in a non-metallic material. The slotted metallic rings prevent extrusion of the sealing mechanism of the expandable packing device as the device is set in a wellbore casing. The encapsulating non-metallic material protects the metallic rings from damage as the packing device is run into the wellbore. In an alternative embodiment, the anti-extrusion assembly comprises a crimped metallic ring flanked by non-metallic rings. As with the slotted metallic rings, the single crimped metallic ring prevents extrusion of the sealing mechanism of the expandable packing device as it is set in the wellbore casing.
    Type: Application
    Filed: August 20, 2007
    Publication date: December 20, 2007
    Applicant: BJ Services Company
    Inventors: Hubert Garrison, Douglas Lehr, Gabriel Slup
  • Encapsulated back-up system for use with seal system
    Publication number: 20060232019
    Abstract: Disclosed is an anti-extrusion assembly used in conjunction with an expandable packing device. The assembly comprises two slotted metallic rings encapsulated in a non-metallic material. The slotted metallic rings prevent extrusion of the sealing mechanism of the expandable packing device as the device is set in a wellbore casing. The encapsulating non-metallic material protects the metallic rings from damage as the packing device is run into the wellbore. In an alternative embodiment, the anti-extrusion assembly comprises a crimped metallic ring flanked by non-metallic rings. As with the slotted metallic rings, the single crimped metallic ring prevents extrusion of the sealing mechanism of the expandable packing device as it is set in the wellbore casing.
    Type: Application
    Filed: April 19, 2005
    Publication date: October 19, 2006
    Inventors: Hubert Garrison, Douglas Lehr, Gabriel Slup