Patents by Inventor Dwight C. Chilcoat

Dwight C. Chilcoat 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).

  • Self-anchoring device with force amplification
    Patent number: 7854258
    Abstract: A downhole tool is provided that includes a grip assembly for contacting a well formation. The grip assembly includes a gripper body; and a centralizer that is attached to and radially expandable with respect to the gripper body and that has a geometry which is lockable by a locking device. The grip assembly also includes a force amplifier in force transmitting relation with the centralizer, wherein the force amplifier transfers a force in a first direction to a much larger force in a second direction when the centralizer is locked by the locking device.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: December 21, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Todor K. Sheiretov, Dwight C. Chilcoat, Robin A. Ewan, Carl J Roy, Matthew Billingham, Franz Aguirre
  • Self-Anchoring Device with Force Amplification
    Publication number: 20090159269
    Abstract: A downhole tool is provided that includes a grip assembly for contacting a well formation. The grip assembly includes a gripper body; and a centralizer that is attached to and radially expandable with respect to the gripper body and that has a geometry which is lockable by a locking device. The grip assembly also includes a force amplifier in force transmitting relation with the centralizer, wherein the force amplifier transfers a force in a first direction to a much larger force in a second direction when the centralizer is locked by the locking device.
    Type: Application
    Filed: March 3, 2009
    Publication date: June 25, 2009
    Inventors: Todor K. Sheiretov, Dwight C. Chilcoat, Robin A. Ewan, Carl J. Roy, Matthew Billingham, Franz Aguirre
  • Self-anchoring device with force amplification
    Patent number: 7516782
    Abstract: A downhole tool is provided that includes a grip assembly for contacting a well formation. The grip assembly includes a gripper body; and a centralizer that is attached to and radially expandable with respect to the gripper body and that has a geometry which is lockable by a locking device. The grip assembly also includes a force amplifier in force transmitting relation with the centralizer, wherein the force amplifier transfers a force in a first direction to a much larger force in a second direction when the centralizer is locked by the locking device.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: April 14, 2009
    Assignee: Schlumberger Technology Corporation
    Inventors: Todor K. Sheiretov, Dwight C. Chilcoat, Robin A. Ewan, Carl J Roy, Matthew Billingham, Franz Aguirre
  • SELF-ANCHORING DEVICE WITH FORCE AMPLIFICATION
    Publication number: 20070181298
    Abstract: A downhole tool is provided that includes a grip assembly for contacting a well formation. The grip assembly includes a gripper body; and a centralizer that is attached to and radially expandable with respect to the gripper body and that has a geometry which is lockable by a locking device. The grip assembly also includes a force amplifier in force transmitting relation with the centralizer, wherein the force amplifier transfers a force in a first direction to a much larger force in a second direction when the centralizer is locked by the locking device.
    Type: Application
    Filed: December 13, 2006
    Publication date: August 9, 2007
    Inventors: Todor K. Sheiretov, Dwight C. Chilcoat, Robin A. Ewan, Carl J. Roy, Matthew Billingham, Franz Aguirre
  • Stage pump having composite components
    Patent number: 6979174
    Abstract: A system and method is provided for pumping fluid. A pump incorporates composite components that provide a high degree of formability while maintaining wear resistance for use in potentially abrasive environments. The composite components may comprise one or more impellers and/or one or more diffusers.
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: December 27, 2005
    Assignee: Schlumberger Technology Corporation
    Inventors: Arthur I. Watson, Dwight C. Chilcoat