Patents by Inventor Jeff Jepson

Jeff Jepson 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: 9540886
    Abstract: In one aspect of the invention, a high impact resistant tool includes a superhard material bonded to a cemented metal carbide substrate at a non-planar interface. The superhard material has a substantially pointed geometry with a sharp apex having a radius of curvature of 0.050 to 0.125 inches. The superhard material also has a thickness of 0.100 to 0.500 inches thickness from the apex to a central region of the cemented metal carbide substrate.
    Type: Grant
    Filed: January 3, 2012
    Date of Patent: January 10, 2017
    Assignee: Schlumberger Technology Corporation
    Inventors: David R. Hall, Ronald B. Crockett, Jeff Jepson, Scott Dahlgren, John Bailey
  • Patent number: 8998346
    Abstract: In one aspect of the present invention, a tool has a wear-resistant steel base comprising a shank suitable for attachment to a driving mechanism. A planar end of a cemented metal carbide segment brazed to an interfacial surface of the base axially opposed to the shank. At least one interruption is formed in the interfacial surface.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: April 7, 2015
    Inventors: David R. Hall, Ronald B. Crockett, John Bailey, Jeff Jepson
  • Publication number: 20140368023
    Abstract: In one aspect of the present invention, a tool has a wear-resistant steel base comprising a shank suitable for attachment to a driving mechanism. A planar end of a cemented metal carbide segment brazed to an interfacial surface of the base axially opposed to the shank. At least one interruption is formed in the interfacial surface.
    Type: Application
    Filed: June 17, 2013
    Publication date: December 18, 2014
    Inventors: David R. Hall, Ronald Crockett, John Bailey, Jeff Jepson
  • Patent number: 8770668
    Abstract: In one aspect of the invention, a system for exchanging a milling chamber comprises a vehicle comprising a milling chamber supported by the underside of the vehicle. The underside comprises a track that interfaces with a guide of the milling chamber. The track and guide are configured to accommodate lateral movement of the milling chamber with respect to a length of the vehicle.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: July 8, 2014
    Inventors: David R. Hall, Jeff Jepson, Thomas Morris, David Wahlquist, Daniel Balling
  • Patent number: 8646848
    Abstract: In one aspect of the present invention, a pick assembly is configured that comprises a pick shank configured to be press fit directly within a bore of a block. The pick shank comprises an inside and outside surface. The pick comprises a pick head opposite the shank. The shank comprises at least one longitudinal recess extending towards the pick head along the shank from a distal end of the shank. The recess allows the shank to resiliently collapse upon insertion into the bore while maintaining a press fit between the bore and the shank.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: February 11, 2014
    Inventors: David R. Hall, Jeff Jepson, Gary Peterson, Ronald B. Crockett
  • Publication number: 20130341999
    Abstract: A tool has a wear-resistant steel base comprising a shank suitable for attachment to a driving mechanism. A planar end of a cemented metal carbide segment is brazed to an interfacial surface of the steel base axially opposed to the shank. At least one interruption is formed in the interfacial surface.
    Type: Application
    Filed: June 22, 2007
    Publication date: December 26, 2013
    Inventors: David R. Hall, Ronald Crockett, John Bailey, Jeff Jepson
  • Patent number: 8534767
    Abstract: In one aspect of the present invention, a tool assembly comprises a rotary portion and a stationary portion. The rotary portion comprises a bolster bonded to a diamond symmetric, substantially conically shaped tip. The stationary portion comprises a block mounted to a driving mechanism. A compressible element is disposed intermediate and in mechanical contact with both the rotary and stationary portions. The compressible element is compressed sufficiently to restrict free rotation during a degradation operation.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: September 17, 2013
    Inventors: David R. Hall, Ronald B. Crockett, Gary Peterson, Jeff Jepson
  • Publication number: 20130234494
    Abstract: A degradation assembly, comprising a platform comprising a surface. A plurality of picks each comprising a hard tip and a shank may be mounted on the surface. A plurality of sensors may also be disposed within the platform such that they can measure impacts on at least one of the picks. The sensors may be in communication with a processor. The degradation assembly may be capable of detecting and determining the location of a selected pick measuring impacts on at least one pick with at least one sensor, detecting a variation on the at least one pick with the at least one sensor, and determining a location of the at least one pick with more than one of the sensors.
    Type: Application
    Filed: March 7, 2012
    Publication date: September 12, 2013
    Inventors: David R. Hall, Ronald B. Crockett, Jeff Jepson, David Wahlquist
  • Patent number: 8500210
    Abstract: In one aspect of the invention, a pick assembly comprises a pick shank press fitted within a bore of a pick holder. The pick comprises a pick head opposite the shank. The shank also comprises at least one longitudinal slot extending towards the pick head along the shank from a distal end of the shank. The slot allows the shank to resiliently collapse upon insertion into the bore while still allowing the shank to maintain a press fit while within the bore.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: August 6, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: David R. Hall, Jeff Jepson, Gary Peterson
  • Patent number: 8500209
    Abstract: A degradation assembly comprises a rotary portion and a stationary portion. The rotary portion includes a cemented metal bolster bonded to a tip. The tip comprises a symmetric, substantially conically shaped tip formed of diamond and a cemented metal carbide substrate. The stationary portion comprises a holder configured to be coupled to a block mounted to a driving mechanism. A compressible element is disposed intermediate, or between, and in mechanical contact with both the rotary portion and the stationary portion.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: August 6, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: David R. Hall, Ronald B. Crockett, Gary Peterson, Jeff Jepson
  • Publication number: 20130181501
    Abstract: A degradation assembly may comprise a block secured to a surface. The degradation assembly may also comprise a pick comprising a working end and a shank. The shank may comprise a continuous external circumference and a shank thread form configured to secure the shank within the block, or within a holder secured within the block.
    Type: Application
    Filed: January 17, 2012
    Publication date: July 18, 2013
    Inventors: David R. Hall, Gary Peterson, Jeff Jepson, Ronald B. Crockett
  • Patent number: 8454096
    Abstract: A high impact resistant tool comprises a steel shank. The steel shank has a hollow portion, and first and second ends. The shank is adapted for insertion into a holder and connection to a driving mechanism. A carbide cap is joined at a brazed joint to the first end of the shank.
    Type: Grant
    Filed: June 26, 2008
    Date of Patent: June 4, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: David R. Hall, Ronald B. Crockett, Jeff Jepson
  • Patent number: 8449040
    Abstract: In one aspect of the invention, an attack tool is disclosed which comprises a wear-resistant base suitable for attachment to a driving mechanism. The wear-resistant base has a shank. A cemented metal carbide segment is bonded to the base and the shank has a wear-resistant surface. The wear-resistant surface has a hardness greater than 60 HRc and/or is work hardened.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: May 28, 2013
    Inventors: David R. Hall, Ronald B. Crockett, Jeff Jepson
  • Patent number: 8292372
    Abstract: In one aspect of the present invention, a degradation assembly has a holder comprising a first end and a second end and a shank with a longitudinal central bore having an opening at an end proximate the second end. The shank portion of the holder has an inside diameter of the bore and an outside diameter wherein either the inner diameter or the outer diameter comprise at least one recess disposed therein which comprises a depth of less than the distance between the inner diameter and the outer diameters.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: October 23, 2012
    Inventors: David R. Hall, Jeff Jepson, Tyson J. Wilde
  • Publication number: 20120261977
    Abstract: In one aspect of the invention, a high impact resistant tool includes a superhard material bonded to a cemented metal carbide substrate at a non-planar interface. The superhard material has a substantially pointed geometry with a sharp apex having a radius of curvature of 0.050 to 0.125 inches. The superhard material also has a thickness of 0.100 to 0.500 inches thickness from the apex to a central region of the cemented metal carbide substrate.
    Type: Application
    Filed: January 3, 2012
    Publication date: October 18, 2012
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: David R. HALL, Ronald B. CROCKETT, Jeff JEPSON, Scott DAHLGREN, John BAILEY
  • Patent number: 8256847
    Abstract: In one aspect of the invention, a system for exchanging a milling chamber comprises a vehicle comprising a milling chamber supported by the underside of the vehicle. The underside comprises a track that interfaces with a guide of the milling chamber. The track and guide are configured to accommodate lateral movement of the milling chamber with respect to a length of the vehicle.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: September 4, 2012
    Inventors: David R. Hall, Jeff Jepson, Thomas Morris, David Wahlquist, Daniel Balling
  • Patent number: 8201892
    Abstract: In one aspect of the invention, a holder assembly comprises a connection block having a block bore extending from a first opening proximate a first end of the assembly to a second opening proximate a second end of the assembly. The block is adapted for connection to a driving mechanism. An extension element is disposed in the block bore and protrudes from the first opening of the block bore. The extension element comprises a central extension bore having a longitudinal length. An attachment mechanism is disposed within the central extension bore of the extension element and is disposed proximate the second end of the assembly.
    Type: Grant
    Filed: December 10, 2007
    Date of Patent: June 19, 2012
    Inventors: David R. Hall, Jeff Jepson, Tyson J. Wilde
  • Publication number: 20120132738
    Abstract: In one aspect of the invention, a system for exchanging a milling chamber comprises a vehicle comprising a milling chamber supported by the underside of the vehicle. The underside comprises a track that interfaces with a guide of the milling chamber. The track and guide are configured to accommodate lateral movement of the milling chamber with respect to a length of the vehicle.
    Type: Application
    Filed: November 30, 2010
    Publication date: May 31, 2012
    Inventors: David R. Hall, Jeff Jepson, Thomas Morris, David Wahlquist, Daniel Balling
  • Publication number: 20120131783
    Abstract: In one aspect of the invention, a system for exchanging a milling chamber comprises a vehicle comprising a milling chamber supported by the underside of the vehicle. The underside comprises a track that interfaces with a guide of the milling chamber. The track and guide are configured to accommodate lateral movement of the milling chamber with respect to a length of the vehicle.
    Type: Application
    Filed: November 30, 2010
    Publication date: May 31, 2012
    Inventors: David R. Hall, Jeff Jepson, Thomas Morris, David Wahlquist, Daniel Balling
  • Patent number: 8136887
    Abstract: In one aspect of the present invention, a high impact resistant tool has a superhard material bonded to a cemented metal carbide substrate at a non-planar interface. The cemented metal carbide substrate is bonded to a front end of a cemented metal carbide segment. A stem formed in the base end of the carbide segment opposite the front end is press fit into a bore of a steel body. The steel body is rotationally fixed to a drum adapted to rotate about its axis.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: March 20, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: David R. Hall, Ronald B. Crockett, John Bailey, Jeff Jepson