Patents by Inventor Scott Dahlgren

Scott Dahlgren 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: 7537051
    Abstract: In one aspect of the invention, a downhole power generation assembly has a downhole tool string component comprising a bore. A collar is rotatably supported within the bore and has a centralized fluid passageway and a plurality of turbine blades. The collar is connected to a power generation element such that rotation of the collar moves the power generation element and induces an electrical current.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: May 26, 2009
    Inventors: David R. Hall, Scott Dahlgren, Jonathan Marshall, Tyson J. Wilde
  • Patent number: 7537053
    Abstract: In one aspect of the invention, a downhole power generation assembly has a downhole tool string component comprising a bore. A collar is rotatably supported within the bore and has a centralized fluid passageway and a plurality of turbine blades. The collar is connected to a power generation element such that rotation of the collar moves the power generation element and induces an electrical current.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: May 26, 2009
    Inventors: David R. Hall, Scott Dahlgren, Jonathan Marshall, Tyson J. Wilde
  • Patent number: 7535377
    Abstract: A system is disclosed as having first and second tubular tool string components. Each component has a first end and a second end, and the first end of the first component is coupled to the second end of the second component through mating threads. First and second inductive coils are disposed within the first end of the first component and the second end of the second component, respectively. Each inductive coil has at least one turn of an electrical conductor, and the first coil is in magnetic communication with the second coil. The first coil has more turns than the second coil.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: May 19, 2009
    Inventors: David R. Hall, Scott Dahlgren, Paul Schramm
  • Publication number: 20090114195
    Abstract: A hybrid vehicle comprises a deceleration mechanism adapted to decelerate a wheel of the vehicle and adapted to drive an air compressor attached to the vehicle from the wheel deceleration. An engine of the vehicle comprises at least one cylinder assembly having a cylinder with an air in-take opening, and the cylinder assembly being adapted to rotate at least in part a crankshaft which is adapted to apply torque to the wheel of the vehicle. An air passage connects the compressor directly to the in-take opening, and the compressor comprises a flow regulator adapted to control an amount of air which passes from the compressor into the cylinder through the in-take valve.
    Type: Application
    Filed: November 2, 2007
    Publication date: May 7, 2009
    Inventors: David R. Hall, Scott Dahlgren
  • Patent number: 7527105
    Abstract: A downhole component of a tool string, having a first and a second end intermediate a tubular body. First and second collars are mounted to the inner surface of the component at the first and second ends respectively. Each collar has an electrical conductor secured to the collar. The first collar has a bearing surface adapted to slide with respect to the inner surface of the component and the second collar is rotationally fixed to the inner surface of the component.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: May 5, 2009
    Inventors: David R. Hall, Scott Dahlgren, Johnathan Marshall, Tyson J. Wilde
  • Patent number: 7517203
    Abstract: In one aspect of the invention, a cartridge assembly is adapted for connection to a frame of a high pressure, high temperature press having a front end with a back up intermediate and coaxial with an anvil and a piston. The back up has an anterior end proximate the anvil and posterior end proximate the piston. The cartridge assembly has a hydraulic system adapted to apply axial pressure to the back-up through the piston to axially move the front end with respect to a cartridge body. The assembly also has a centralizing assembly with a rod rigidly attached to the cartridge body at a first end and a second end adapted to slide within a peripheral bore formed in the front end.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: April 14, 2009
    Inventors: David R. Hall, Timothy C. Duke, Scott Dahlgren, Ronald B. Crockett
  • Patent number: 7513764
    Abstract: In one aspect of the invention, a cartridge assembly is adapted for connection to a frame of a high pressure, high temperature press having a front end with a back up intermediate and coaxial with an anvil and a piston. The back up has an anterior end proximate the anvil and posterior end proximate the piston. The cartridge assembly has a hydraulic system adapted to apply axial pressure to the back-up through the piston to axially move the front end with respect to a cartridge body. The assembly also has a centralizing assembly with a rod rigidly attached to the cartridge body at a first end and a second end adapted to slide within a peripheral bore formed in the front end.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: April 7, 2009
    Inventors: David R. Hall, Timothy C. Duke, Scott Dahlgren, Ronald B. Crockett
  • Patent number: 7506701
    Abstract: In one aspect of the invention a drill bit assembly has a body portion intermediate a shank portion and a working portion, the working portion having at least one cutting element. A shaft is supported by the body portion and extends beyond the working portion. The shaft also has a distal end that is rotationally isolated from the body portion. In another aspect of the invention, a method for steering a downhole tool string has the following steps: providing a drill bit assembly attached to an end of the tool string disposed within a bore hole; providing a shaft extending beyond a working portion of the assembly; engaging a subterranean formation with a distal end of the shaft; and angling the drill bit assembly with the shaft along a desired drilling trajectory.
    Type: Grant
    Filed: March 21, 2008
    Date of Patent: March 24, 2009
    Inventors: David R. Hall, Francis E. Leany, Scott Dahlgren, David Lundgreen, Daryl N. Wise
  • Publication number: 20090057016
    Abstract: In one aspect of the present invention, a drill bit has a jack element that is substantially coaxial with an axis of rotation of the drill bit and the jack element has an asymmetrical distal end that extends beyond a working face of the drill bit. A turbine is located within a bore formed in the drill bit and a flow valve is actuated by the turbine. The flow valve is adapted to route a drilling fluid in the bore into a porting mechanism adapted to extend the jack element farther beyond the working surface of the drill bit. The turbine is also adapted to rotate the jack element at variable speeds.
    Type: Application
    Filed: October 31, 2008
    Publication date: March 5, 2009
    Inventors: David R. Hall, Scott Dahlgren, Jonathan Marshall
  • Patent number: 7497675
    Abstract: A cartridge assembly for connection to the frame of a high pressure, high temperature press, comprising a front end. The front end may comprise a back up with a conical portion intermediate and coaxial with an anvil and a piston. The anvil may comprise a proximal end in contact with the back-up and a distal end being adapted to form part of a pressurized chamber within the frame. The back-up may comprise a truncated cylinder comprising a first and second interface that are joined by a peripheral cylindrical wall. The cylindrical wall may also comprise a portion extending normally from the periphery of the first interface to a net concave portion of the cylindrical wall. The net concave portion may extend from the normal portion of the cylindrical wall to the periphery of the second interface which abuts the anvil.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: March 3, 2009
    Inventors: David R. Hall, Scott Dahlgren, Timothy C. Duke
  • Publication number: 20090050372
    Abstract: In one aspect of the present invention, a drill bit has a jack element that is substantially coaxial with an axis of rotation of the drill bit and the jack element has an asymmetrical distal end that extends beyond a working face of the drill bit. A turbine is located within a bore formed in the drill bit and a flow valve is actuated by the turbine. The flow valve is adapted to route a drilling fluid in the bore into a porting mechanism adapted to extend the jack element farther beyond the working surface of the drill bit. The turbine is also adapted to rotate the jack element at variable speeds.
    Type: Application
    Filed: October 31, 2008
    Publication date: February 26, 2009
    Inventors: David R. Hall, Scott Dahlgren, Jonathan Marshall
  • Patent number: 7488194
    Abstract: An apparatus has a downhole tubular body having a bore with a central axis. An electrical conductor assembly is disposed within the bore of the tubular component, the assembly having a first end, a second end, a first conductor, and a second conductor electrically isolated from the first conductor. At least one end of the assembly has a polished mating surface which has an electrically conductive portion surrounded by a dielectric material. The electrically conductive portion is in electrical communication with the first conductor. The first and second ends of the electrical conductor assembly are substantially aligned to the central axis of the bore by stabilizing elements within the bore.
    Type: Grant
    Filed: July 3, 2006
    Date of Patent: February 10, 2009
    Inventors: David R. Hall, Scott Dahlgren, Joe Fox, Tyson J. Wilde, Paul M. Schramm, Jonathan Marshall
  • Patent number: 7481639
    Abstract: A cartridge assembly for connection to the frame of a high pressure, high temperature press, comprising a front end. The front end may comprise a back up with a conical portion intermediate and coaxial with an anvil and a piston. The anvil may comprise a proximal end in contact with the back-up and a distal end being adapted to form part of a pressurized chamber within the frame. The back-up may comprise a truncated cylinder comprising a first and second interface that are joined by a peripheral cylindrical wall. The cylindrical wall may also comprise a portion extending normally from the periphery of the first interface to a net concave portion of the cylindrical wall. The net concave portion may extend from the normal portion of the cylindrical wall to the periphery of the second interface which abuts the anvil.
    Type: Grant
    Filed: February 12, 2007
    Date of Patent: January 27, 2009
    Inventors: David R. Hall, Scott Dahlgren, Timothy C. Duke
  • Publication number: 20090007558
    Abstract: A system for performing work having a hydraulic circuit has a length of hose, a hydraulic fluid in the circuit in communication with the hose and with a hydraulic actuator for doing the work, and a mechanism for pressurizing the hydraulic circuit such that at least 50 foot pounds of energy is stored within the hose to perform the work.
    Type: Application
    Filed: July 2, 2007
    Publication date: January 8, 2009
    Inventors: David R. Hall, Francis Leany, David Wahiquist, Scott Dahlgren
  • Patent number: 7467937
    Abstract: In one aspect of the present invention, a high-temperature, high-pressure press apparatus has a cartridge assembly adapted for connection to a unitary frame. An anvil is attached at a front end of a cylindrical body of the cartridge and a hydraulic chamber within the body is adapted to apply axial pressure to the anvil. A threaded end of the anvil is adapted for mating with a threaded inside diameter of a borehole disposed within a wall of the frame. A radial compression element disposed around an outer diameter of the body is adapted to limit radial expansion of the body proximate the hydraulic chamber. At least one mechanism is attached to the radial compression element; the at least one mechanism being adapted to preload the threaded connection between the cartridge assembly and the frame.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: December 23, 2008
    Inventors: David R. Hall, Ronald Crockett, Timothy C. Duke, Scott Dahlgren
  • Publication number: 20080309148
    Abstract: In one aspect of the present invention, a degradation assembly comprises a shank with a forward end and a rearward end, the rearward end being adapted for attachment to a driving mechanism, with a shield rotatably attached to the forward end of the shank. The shield comprises an underside adapted for rotatable attachment to the shank and an impact tip disposed on an end opposing the underside. A seal is disposed intermediate the shield and the shank.
    Type: Application
    Filed: July 22, 2008
    Publication date: December 18, 2008
    Inventors: David R. Hall, Ronald Crockett, Scott Dahlgren
  • Publication number: 20080309147
    Abstract: In one aspect of the present invention, a degradation assembly comprises a shank with a forward end and a rearward end, the rearward end being adapted for attachment to a driving mechanism, with a shield rotatably attached to the forward end of the shank. The shield comprises an underside adapted for rotatable attachment to the shank and an impact tip disposed on an end opposing the underside. A seal is disposed intermediate the shield and the shank.
    Type: Application
    Filed: July 22, 2008
    Publication date: December 18, 2008
    Inventors: David R. Hall, Ronald Crockett, Scott Dahlgren
  • Publication number: 20080309514
    Abstract: In one aspect of the invention, a swivel for use in a drilling operation comprises a body with a central bore adapted for threaded connection to a tool string component. At least one electrically conductive medium is rotationally supported within the bore and adapted to rotate with respect to an electrically conductive receiver that is rotationally fixed to and disposed within the body. The electrically conductive medium and the receiver are in electrical communication through an electrically conductive arm that is rotationally fixed to the electrically conductive medium and at least partially disposed within an electrically conductive fluid disposed within a reservoir. The reservoir comprises a rigid shape that is partially filled by the conductive fluid. A least one rotary seal is disposed intermediate the reservoir and the electrically conductive medium. The rigid shape of the reservoir is adapted to prevent the conductive fluid from accumulating around the rotary seal.
    Type: Application
    Filed: June 12, 2007
    Publication date: December 18, 2008
    Inventors: David R. Hall, Scott Dahlgren, Jonathon Marshall
  • Publication number: 20080309146
    Abstract: In one aspect of the present invention, a degradation assembly comprises a shank with a forward end and a rearward end, the rearward end being adapted for attachment to a driving mechanism, with a shield rotatably attached to the forward end of the shank. The shield comprises an underside adapted for rotatable attachment to the shank and an impact tip disposed on an end opposing the underside. A seal is disposed intermediate the shield and the shank.
    Type: Application
    Filed: July 22, 2008
    Publication date: December 18, 2008
    Inventors: David R. Hall, Ronald Crockett, Scott Dahlgren
  • Publication number: 20080302572
    Abstract: In one aspect of the present invention a drill bit has a jack element with a distal end extending beyond a working face. A porting mechanism within the bore comprises first and second discs contacting along a flat interface. The first disc is attached to a turbine which is adapted to rotate the first disc with respect to the second disc. The discs comprise a first set of ports adapted to align and misalign with each other as the first disc rotates. The first set of ports is adapted to route a drilling fluid to extend the jack element.
    Type: Application
    Filed: July 23, 2008
    Publication date: December 11, 2008
    Inventors: David R. Hall, Scott Dahlgren, Jonathan Marshall