Patents by Inventor Iain Caulfield

Iain Caulfield 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 communication nipple having an interior passageway with an interior wall section that may be opened to establish fluid communication with the passageway
    Patent number: 7621331
    Abstract: A fluid communication nipple including a tubular mandrel having an interior surface defining an internal bore and a passageway extending substantially lengthwise along a portion of the mandrel. The passageway is defined by an exterior wall section and an interior wall section, wherein the interior wall section extends outward from the interior surface into the bore. When it is desired to establish fluid communication through the passageway between the exterior and interior of the nipple an opening is formed through the internal wall section.
    Type: Grant
    Filed: October 11, 2005
    Date of Patent: November 24, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Stephen Mescall, Iain Caulfield, Russell A. Johnston, David E. McCalvin
  • Fluid Communication Nipple
    Publication number: 20080236827
    Abstract: A fluid communication nipple including a tubular mandrel having an interior surface defining an internal bore and a passageway extending substantially lengthwise along a portion of the mandrel. The passageway is defined by an exterior wall section and an interior wall section, wherein the interior wall section extends outward from the interior surface into the bore. When it is desired to establish fluid communication through the passageway between the exterior and interior of the nipple an opening is formed through the internal wall section.
    Type: Application
    Filed: October 11, 2005
    Publication date: October 2, 2008
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Stephen Mescall, Iain Caulfield, Russell Johnston, David McCalvin
  • Fluid Communication Nipple
    Publication number: 20060076136
    Abstract: A fluid communication nipple including a tubular mandrel having an interior surface defining an internal bore and a passageway extending substantially lengthwise along a portion of the mandrel. The passageway is defined by an exterior wall section and an interior wall section, wherein the interior wall section extends outward from the interior surface into the bore. When it is desired to establish fluid communication through the passageway between the exterior and interior of the nipple an opening is formed through the internal wall section.
    Type: Application
    Filed: October 11, 2005
    Publication date: April 13, 2006
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Stephen Mescall, Iain Caulfield, Russell Johnston, David McCalvin