Patents by Inventor James D. Isenhour

James D. Isenhour 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).

  • Valve assembly
    Patent number: 10161530
    Abstract: A rotary valve is disclosed. The valve comprises a drive shaft, a rotor coupled to the drive shaft, a least one bearing surface coupled to the rotor, a stator adjacent to the rotor, at least one solid bearing surface coupled to the stator, and at least one ring bearing surface coupled to the stator.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: December 25, 2018
    Assignee: Extreme Technologies, LLC
    Inventors: James D. Isenhour, Gilbert T. Meier
  • METHOD AND APPARATUS FOR REAMING WELL BORE SURFACES NEARER THE CENTER OF DRIFT
    Publication number: 20170370157
    Abstract: A well bore reaming device and method are disclosed. The device includes a drill string, a bottom eccentric reamer coupled to the drill string, and a top eccentric reamer coupled to the drill string, wherein the bottom and top eccentric reamers have a prearranged spacing and orientation.
    Type: Application
    Filed: August 16, 2017
    Publication date: December 28, 2017
    Inventor: James D. Isenhour
  • METHOD AND APPARATUS FOR STEERING A DRILL STRING AND REAMING WELL BORE SURFACES NEARER THE CENTER OF DRIFT
    Publication number: 20170241207
    Abstract: A steerable well bore drilling device and method are disclosed. The steerable well bore drilling device comprises a drill string, a bit coupled to the drill string, a drilling motor within the drill string and driving the bit, and a pair of eccentric reamers coupled to the drill string and positioned between the bit and the motor.
    Type: Application
    Filed: May 5, 2017
    Publication date: August 24, 2017
    Inventors: Gilbert Troy Meier, James D. Osterloh, Joshua J. Smith, Joseph Aschenbrenner, James D. Isenhour
  • Method and apparatus for reaming well bore surfaces nearer the center of drift
    Patent number: 9739092
    Abstract: A well bore reaming device and method are disclosed. The device includes a drill string, a bottom eccentric reamer coupled to the drill string, and a top eccentric reamer coupled to the drill string, wherein the bottom and top eccentric reamers have a prearranged spacing and orientation.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: August 22, 2017
    Assignee: Extreme Technologies, LLC
    Inventor: James D. Isenhour
  • VALVE ASSEMBLY
    Publication number: 20160356387
    Abstract: A rotary valve is disclosed. The valve comprises a drive shaft, a rotor coupled to the drive shaft, a least one bearing surface coupled to the rotor, a stator adjacent to the rotor, at least one solid bearing surface coupled to the stator, and at least one ring bearing surface coupled to the stator.
    Type: Application
    Filed: August 8, 2016
    Publication date: December 8, 2016
    Inventors: James D. Isenhour, Gilbert T. Meier
  • Valve assembly
    Patent number: 9410637
    Abstract: A rotary valve is disclosed. The valve comprises a drive shaft, a rotor coupled to the drive shaft, a least one bearing surface coupled to the rotor, a stator adjacent to the rotor, at least one solid bearing surface coupled to the stator, and at least one ring bearing surface coupled to the stator.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: August 9, 2016
    Assignee: Extreme Technologies, LLC
    Inventors: James D. Isenhour, Gilbert T. Meier
  • Wellbore Conditioning System
    Publication number: 20160208559
    Abstract: A wellbore conditioning system is disclosed. The system comprises at least one shaft and at least two eccentric unilateral reamers, wherein the unilateral reamers are positioned at a predetermined distance from each other and the unilateral reamers are positioned at a predetermined rotational angle from each other.
    Type: Application
    Filed: October 2, 2015
    Publication date: July 21, 2016
    Inventors: James D. Isenhour, Gilbert Troy Meier
  • Wellbore conditioning system
    Patent number: 9163460
    Abstract: A wellbore conditioning system is disclosed. The system comprises at least one shaft and at least two eccentric unilateral reamers, wherein the unilateral reamers are positioned at a predetermined distance from each other and the unilateral reamers are positioned at a predetermined rotational angle from each other.
    Type: Grant
    Filed: October 3, 2012
    Date of Patent: October 20, 2015
    Assignee: Extreme Technologies, LLC
    Inventors: James D. Isenhour, Gilbert T. Meier
  • Valve Assembly
    Publication number: 20150211653
    Abstract: A rotary valve is disclosed. The valve comprises a drive shaft, a rotor coupled to the drive shaft, a least one bearing surface coupled to the rotor, a stator adjacent to the rotor, at least one solid bearing surface coupled to the stator, and at least one ring bearing surface coupled to the stator.
    Type: Application
    Filed: April 7, 2015
    Publication date: July 30, 2015
    Inventors: James D. Isenhour, Gilbert T. Meier
  • Valve assembly
    Patent number: 9010370
    Abstract: A rotary valve is disclosed. The valve comprises a drive shaft, a rotor coupled to the drive shaft, a least one bearing surface coupled to the rotor, a stator adjacent to the rotor, at least one solid bearing surface coupled to the stator, and at least one ring bearing surface coupled to the stator.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: April 21, 2015
    Assignee: Extreme Technologies, LLC
    Inventors: James D. Isenhour, Gilbert T. Meier
  • METHOD AND APPARATUS FOR REAMING WELL BORE SURFACES NEARER THE CENTER OF DRIFT
    Publication number: 20140284109
    Abstract: A well bore reaming device and method are disclosed. The device includes a drill string, a bottom eccentric reamer coupled to the drill string, and a top eccentric reamer coupled to the drill string, wherein the bottom and top eccentric reamers have a prearranged spacing and orientation.
    Type: Application
    Filed: June 6, 2014
    Publication date: September 25, 2014
    Inventor: James D. Isenhour
  • Method and apparatus for reaming well bore surfaces nearer the center of drift
    Patent number: 8752649
    Abstract: A well bore reaming device and method are disclosed. The device includes a drill string, a bottom eccentric reamer coupled to the drill string, and a top eccentric reamer coupled to the drill string, wherein the bottom and top eccentric reamers have a prearranged spacing and orientation.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: June 17, 2014
    Assignee: Hard Rock Solutions, Inc.
    Inventor: James D. Isenhour
  • LOW-FRICTION, ABRASION RESISTANT REPLACEABLE BEARING SURFACE
    Publication number: 20140064646
    Abstract: A replaceable bearing surface is disclosed. The replaceable bearing surface comprises an outer housing and a low-friction, abrasion resistant button secured within the outer housing. The outer housing is adapted to be inserted into and removed from a device without damaging the device.
    Type: Application
    Filed: September 4, 2013
    Publication date: March 6, 2014
    Applicant: Superior Drilling Products LLC
    Inventors: Gilbert Troy Meier, James D. Isenhour
  • Valve Assembly
    Publication number: 20140014866
    Abstract: A rotary valve is disclosed. The valve comprises a drive shaft, a rotor coupled to the drive shaft, a least one bearing surface coupled to the rotor, a stator adjacent to the rotor, at least one solid bearing surface coupled to the stator, and at least one ring bearing surface coupled to the stator.
    Type: Application
    Filed: July 12, 2013
    Publication date: January 16, 2014
    Inventors: James D. Isenhour, Gilbert T. Meier
  • Wellbore Conditioning System
    Publication number: 20130180779
    Abstract: A wellbore conditioning system is disclosed. The system comprises at least one shaft and at least two eccentric unilateral reamers, wherein the unilateral reamers are positioned at a predetermined distance from each other and the unilateral reamers are positioned at a predetermined rotational angle from each other.
    Type: Application
    Filed: October 3, 2012
    Publication date: July 18, 2013
    Inventors: James D. Isenhour, Gilbert T. Meier
  • Method and Apparatus for Reaming Well Bore Surfaces Nearer the Center of Drift
    Publication number: 20120255786
    Abstract: A well bore reaming device and method are disclosed. The device includes a drill string, a bottom eccentric reamer coupled to the drill string, and a top eccentric reamer coupled to the drill string, wherein the bottom and top eccentric reamers have a prearranged spacing and orientation.
    Type: Application
    Filed: April 9, 2012
    Publication date: October 11, 2012
    Inventor: James D. Isenhour