Patents by Inventor Sony Tran

Sony Tran 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).

  • Coring bit with uncoupled sleeve
    Patent number: 7431107
    Abstract: A coring bit, including an outer hollow coring shaft, and a rotationally uncoupled internal sleeve disposed inside the outer hollow coring shaft. The rotationally uncoupled internal sleeve may be a non-rotating internal sleeve. The rotationally uncoupled internal sleeve may be a free-floating internal sleeve.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: October 7, 2008
    Assignee: Schlumberger Technology Corporation
    Inventors: Bunker Hill, Gary W. Contreras, Edward Harrigan, Robert Wayne Sundquist, Lennox E. Reid, Dean W. Lauppe, Sony Tran
  • Coring bit with uncoupled sleeve
    Publication number: 20060054358
    Abstract: A coring bit, including an outer hollow coring shaft, and a rotationally uncoupled internal sleeve disposed inside the outer hollow coring shaft. The rotationally uncoupled internal sleeve may be a non-rotating internal sleeve. The rotationally uncoupled internal sleeve may be a free-floating internal sleeve.
    Type: Application
    Filed: October 4, 2005
    Publication date: March 16, 2006
    Inventors: Bunker Hill, Gary Contreras, Edward Harrigan, Robert Sundquist, Lennox Reid, Dean Lauppe, Sony Tran
  • Coring Bit With Uncoupled Sleeve
    Publication number: 20040140126
    Abstract: A coring bit, including an outer hollow coring shaft, and a rotationally uncoupled internal sleeve disposed inside the outer hollow coring shaft. The rotationally uncoupled internal sleeve may be a non-rotating internal sleeve. The rotationally uncoupled internal sleeve may be a free-floating internal sleeve.
    Type: Application
    Filed: January 22, 2003
    Publication date: July 22, 2004
    Inventors: Bunker M. Hill, Gary W. Contreras, Edward Harrigan, Robert Wayne Sundquist, Lennox E. Reid, Dean W. Lauppe, Sony Tran
  • Method and apparatus for retaining a core sample within a coring tool
    Patent number: 6729416
    Abstract: A core sample retaining sleeve is provided for preventing loss of a cut core sample from the distal end of a coring bit, particularly during retraction of the coring bit to within the coring tool. Preferably, the core sample retaining sleeve is disposed concentrically within the coring bit to fit around the received core sample. The core sample retaining sleeve has one or more retaining fingers formed on the distal end of the coring bit. The retaining fingers are selectively closeable, preferably by urging the one or more retaining fingers against one or more guide members. A guide member is preferably provided as a stationary ridge on the inner, distal surface of the coring bit. The core sample is contained and protected within the closed retaining sleeve.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: May 4, 2004
    Assignee: Schlumberger Technology Corporation
    Inventors: Gary W. Contreras, Edward Harrigan, Bunker M. Hill, Robert W. Sundquist, Dean W. Lauppe, Sony Tran
  • Method and apparatus for retaining a core sample within a coring tool
    Publication number: 20020148643
    Abstract: The present invention provides a core sample retaining sleeve for preventing loss of a cut core sample from the distal end of a coring bit, particularly during retraction of the coring bit to within the coring tool. Preferably, the core sample retaining sleeve is disposed concentrically within the coring bit to fit around the received core sample. The core sample retaining sleeve has one or more retaining fingers formed on the distal end of the coring bit. The retaining fingers are selectively closeable, preferably by urging the one or more retaining fingers against one or more guide members. A guide member is preferably provided as a stationary ridge on the inner, distal surface of the coring bit. The core sample is contained and protected within the closed retaining sleeve.
    Type: Application
    Filed: April 11, 2001
    Publication date: October 17, 2002
    Inventors: Gary W. Contreras, Edward Harrigan, Bunker M. Hill, Robert W. Sundquist, Dean W. Lauppe, Sony Tran
  • Coring bit and method for obtaining a material core sample
    Patent number: 6412575
    Abstract: The present invention provides a brush bit for cutting a core sample from an unconsolidated formation with reduced fragmentation or damage to the core sample by using a plurality of stiff bristles to cut rock from around the core sample. The present invention also provides an improved method of obtaining a core sample from an unconsolidated formation.
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: July 2, 2002
    Assignee: Schlumberger Technology Corporation
    Inventors: Edward Harrigan, Robert W. Sundquist, Bunker M. Hill, Dean W. Lauppe, Gary W. Contreras, Sony Tran
  • Coring bit motor and method for obtaining a material core sample
    Patent number: 6371221
    Abstract: The present invention provides an improved coring motor for use in obtaining a core sample from the side wall of a drilled bore hole. The present invention provides controllable rotation, extension and retraction of the coring bit relative to the side wall without complicated positioning linkages and with conservation of space for use in slim tools for use downhole.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: April 16, 2002
    Assignee: Schlumberger Technology Corporation
    Inventors: Edward Harrigan, Gary W. Contreras, Bunker M. Hill, Robert W. Sundquist, Dean W. Lauppe, Sony Tran