Patents by Inventor George Iondov

George Iondov 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).

  • Publication number: 20180328161
    Abstract: A brake device for engaging an inner surface of a drill string within a borehole. The brake device has a driving member that defines a plurality of wedge surfaces, a brake retainer that receives at least a portion of the driving member, and a plurality of braking elements positioned in contact with at least a portion of the outer surface of the driving member. The brake retainer has a biasing member that is operatively coupled to the driving member. The biasing member of the brake retainer biases the driving member in a proximal direction relative to the longitudinal axis of the drill string to position the wedge surfaces in contact with corresponding braking elements, and the wedge surfaces drive the braking elements radially outwardly to engage the inner surface of the drill string. The brake device is not coupled to an inner tube assembly.
    Type: Application
    Filed: July 16, 2018
    Publication date: November 15, 2018
    Inventors: CHRISTOPHER L. DRENTH, GEORGE IONDOV, MARTIN ROMEO SAVOIE
  • Patent number: 10053973
    Abstract: A brake device for engaging an inner surface of a drill string within a borehole. The brake device has a driving member that defines a plurality of wedge surfaces, a brake retainer that receives at least a portion of the driving member, and a plurality of braking elements positioned in contact with at least a portion of the outer surface of the driving member. The brake retainer has a biasing member that is operatively coupled to the driving member. The biasing member of the brake retainer biases the driving member in a proximal direction relative to the longitudinal axis of the drill string to position the wedge surfaces in contact with corresponding braking elements, and the wedge surfaces drive the braking elements radially outwardly to engage the inner surface of the drill string. The brake device is not coupled to an inner tube assembly.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: August 21, 2018
    Assignee: LONGYEAR TM, INC.
    Inventors: Christopher L. Drenth, George Iondov, Martin Romeo Savoie
  • Publication number: 20170089191
    Abstract: A brake device for engaging an inner surface of a drill string within a borehole. The brake device has a driving member that defines a plurality of wedge surfaces, a brake retainer that receives at least a portion of the driving member, and a plurality of braking elements positioned in contact with at least a portion of the outer surface of the driving member. The brake retainer has a biasing member that is operatively coupled to the driving member. The biasing member of the brake retainer biases the driving member in a proximal direction relative to the longitudinal axis of the drill string to position the wedge surfaces in contact with corresponding braking elements, and the wedge surfaces drive the braking elements radially outwardly to engage the inner surface of the drill string. The brake device is not coupled to an inner tube assembly.
    Type: Application
    Filed: September 30, 2015
    Publication date: March 30, 2017
    Inventors: CHRISTOPHER L. DRENTH, GEORGE IONDOV, MARTIN ROMEO SAVOIE
  • Patent number: 9540897
    Abstract: An overshot assembly for operative coupling to a wireline and a head assembly within a drilling system. The overshot assembly has at least one latch member that securely engages the inner surface of the head assembly without the use of a spearhead.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: January 10, 2017
    Assignee: LONGYEAR TM, INC.
    Inventors: Christopher L. Drenth, Anthony LaChance, George Iondov
  • Patent number: 9528337
    Abstract: A bushing for positioning within a core barrel assembly during an up-hole drilling operation. The bushing has a wall with an inner surface and an outer surface. The inner surface defines an inlet, an outlet, and a central bore of the bushing. The central bore surrounds a longitudinal axis of the bushing and extends between the inlet and the outlet. The outer surface has a first portion positioned proximate the inlet and a second portion positioned proximate the outlet. The first portion of the outer surface of the wall projects outwardly from the second portion of the outer surface relative to the longitudinal axis of the bushing such that the first portion of the outer surface defines opposed first and second shoulder surfaces extending substantially perpendicularly relative to the longitudinal axis. Core barrel head assemblies including such bushings are also described.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: December 27, 2016
    Assignee: LONGYEAR TM, INC.
    Inventor: George Iondov
  • Patent number: 9399898
    Abstract: Drilling systems and methods for deploying a latch mechanism upon reaching a drilling position. The drilling systems and methods permit spinning of a drill string to cause a core barrel head assembly to spin through the frictional mating of a landing shoulder of the head assembly and a landing ring of an outer tube assembly. The spinning of the drill string induces a centrifugal and/or radial force that acts on the latch mechanism to overcome the frictional retention forces acting on the latch mechanism, thereby permitting deployment of the latch mechanism.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: July 26, 2016
    Assignee: Longyear TM, Inc.
    Inventors: Charles Ernest Muntz, Christopher L. Drenth, George Iondov
  • Patent number: 9328608
    Abstract: Implementations include a core barrel assembly having a driven latch mechanism. The driven latch mechanism can lock the core barrel assembly axially and rotationally relative to a drill string. The driven latch mechanism can include a plurality of wedge members positioned on a plurality of driving surfaces. Rotation of the drill string can cause the plurality of wedge members to wedge between an inner diameter of the drill string and the plurality of driving surfaces, thereby rotationally locking the core barrel assembly relative to the drill string. Implementations of the present invention also include drilling systems including such driven latch mechanisms, and methods of retrieving a core sample using such drilling systems.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: May 3, 2016
    Assignee: Longyear TM, Inc.
    Inventors: Christopher L. Drenth, George Iondov, George Ibrahim
  • Patent number: 9234398
    Abstract: Implementations of the present invention include a core barrel assembly having a driven latch mechanism. The driven latch mechanism can lock the core barrel assembly axially and rotationally relative to a drill string. The driven latch mechanism can include a plurality of wedge members positioned on a plurality of driving surfaces. Rotation of the drill string can cause the plurality of wedge members to wedge between an inner diameter of the drill string and the plurality of driving surfaces, thereby rotationally locking the core barrel assembly relative to the drill string. The driven latch mechanism can further include a refracted groove adapted to lock the plurality of wedge members radially within the core barrel assembly, thereby allowing for faster travel within the drill string. Implementations of the present invention also include drilling systems including such driven latch mechanisms, and methods of retrieving a core sample using such drilling systems.
    Type: Grant
    Filed: July 16, 2013
    Date of Patent: January 12, 2016
    Assignee: LONGYEAR TM, INC.
    Inventors: Christopher L. Drenth, George Iondov, George Ibrahim
  • Publication number: 20140332279
    Abstract: Implementations include a core barrel assembly having a driven latch mechanism. The driven latch mechanism can lock the core barrel assembly axially and rotationally relative to a drill string. The driven latch mechanism can include a plurality of wedge members positioned on a plurality of driving surfaces. Rotation of the drill string can cause the plurality of wedge members to wedge between an inner diameter of the drill string and the plurality of driving surfaces, thereby rotationally locking the core barrel assembly relative to the drill string. Implementations of the present invention also include drilling systems including such driven latch mechanisms, and methods of retrieving a core sample using such drilling systems.
    Type: Application
    Filed: July 25, 2014
    Publication date: November 13, 2014
    Applicant: LONGYEAR TM, INC.
    Inventors: CHRISTOPHER L. DRENTH, GEORGE IONDOV, GEORGE IBRAHIM
  • Patent number: 8794355
    Abstract: A core barrel assembly having a driven latch mechanism that can lock the core barrel assembly axially and rotationally relative to a drill string. The driven latch mechanism can include a plurality of wedge members positioned on a plurality of driving surfaces. Rotation of the drill string can cause the plurality of wedge members to wedge between an inner diameter of the drill string and the plurality of driving surfaces, thereby rotationally locking the core barrel assembly relative to the drill string. Drilling systems including the driven latch mechanism and methods of using the driven latch mechanism are also described.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: August 5, 2014
    Assignee: Longyear TM, Inc.
    Inventors: Christopher L. Drenth, George Iondov, George Ibrahim
  • Patent number: 8770322
    Abstract: A latch body for use in a drilling head assembly including a fluid control subassembly, a check valve element, and/or a hollow spindle. A distal end portion of the latch body includes a port section that defines a chamber for receiving the check valve element and promoting movement of the check valve element between a blocking position and an open position. The hollow spindle of the fluid control subassembly is operatively coupled to the chamber of the port section and supports the check valve element in the blocking position. A proximal end portion of the latch body supports the fluid control subassembly of the drilling head assembly in an operative position. The latch body includes male protrusions extending inwardly toward and spaced from a longitudinal axis of the latch body. A plurality of channels extend radially outwardly from the longitudinal axis of the latch body, spanning between adjacent male protrusions.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: July 8, 2014
    Assignee: Longyear TM, Inc.
    Inventors: Christopher L. Drenth, Anthony LaChance, George Iondov
  • Patent number: 8770319
    Abstract: An assembly may be disposed within a drill string. The assembly may be moved within and along the drill string using hydraulic pressure. A core sample may be collected within the assembly, and the assembly may be retrieved to obtain the core sample. The assembly may include a seal that may be configured to form a seal with different inner diameters of a variable-diameter drill rod of the drill string.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: July 8, 2014
    Assignee: Longyear TM, Inc.
    Inventors: Christopher L. Drenth, George Iondov, George Ibrahim
  • Publication number: 20140174828
    Abstract: Drilling systems and methods for deploying a latch mechanism upon reaching a drilling position. The drilling systems and methods permit spinning of a drill string to cause a core barrel head assembly to spin through the frictional mating of a landing shoulder of the head assembly and a landing ring of an outer tube assembly. The spinning of the drill string induces a centrifugal and/or radial force that acts on the latch mechanism to overcome the frictional retention forces acting on the latch mechanism, thereby permitting deployment of the latch mechanism.
    Type: Application
    Filed: February 28, 2014
    Publication date: June 26, 2014
    Inventors: Charles Ernest Muntz, Christopher L. Drenth, George Iondov
  • Publication number: 20140174832
    Abstract: An overshot assembly for operative coupling to a wireline and a head assembly within a drilling system. The overshot assembly has at least one latch member that securely engages the inner surface of the head assembly without the use of a spearhead.
    Type: Application
    Filed: December 20, 2013
    Publication date: June 26, 2014
    Applicant: Longyear TM,Inc.
    Inventors: Christopher L. Drenth, Anthony LaChance, George Iondov
  • Publication number: 20140054093
    Abstract: A latch body for use in a drilling head assembly including a fluid control subassembly, a check valve element, and/or a hollow spindle. A distal end portion of the latch body includes a port section that defines a chamber for receiving the check valve element and promoting movement of the check valve element between a blocking position and an open position. The hollow spindle of the fluid control subassembly is operatively coupled to the chamber of the port section and supports the check valve element in the blocking position. A proximal end portion of the latch body supports the fluid control subassembly of the drilling head assembly in an operative position. The latch body includes male protrusions extending inwardly toward and spaced from a longitudinal axis of the latch body. A plurality of channels extend radially outwardly from the longitudinal axis of the latch body, spanning between adjacent male protrusions.
    Type: Application
    Filed: August 23, 2012
    Publication date: February 27, 2014
    Applicant: LONGYEAR TM, INC.
    Inventors: Christopher L. Drenth, Anthony LaChance, George Iondov
  • Publication number: 20130313024
    Abstract: Implementations of the present invention include a core barrel assembly having a driven latch mechanism. The driven latch mechanism can lock the core barrel assembly axially and rotationally relative to a drill string. The driven latch mechanism can include a plurality of wedge members positioned on a plurality of driving surfaces. Rotation of the drill string can cause the plurality of wedge members to wedge between an inner diameter of the drill string and the plurality of driving surfaces, thereby rotationally locking the core barrel assembly relative to the drill string. The driven latch mechanism can further include a refracted groove adapted to lock the plurality of wedge members radially within the core barrel assembly, thereby allowing for faster travel within the drill string. Implementations of the present invention also include drilling systems including such driven latch mechanisms, and methods of retrieving a core sample using such drilling systems.
    Type: Application
    Filed: July 16, 2013
    Publication date: November 28, 2013
    Inventors: Christopher L. Drenth, George Iondov, George Ibrahim
  • Patent number: 8485280
    Abstract: Implementations of the present invention include a core barrel assembly having a driven latch mechanism. The driven latch mechanism can lock the core barrel assembly axially and rotationally relative to a drill string. The driven latch mechanism can include a plurality of wedge members positioned on a plurality of driving surfaces. Rotation of the drill string can cause the plurality of wedge members to wedge between an inner diameter of the drill string and the plurality of driving surfaces, thereby rotationally locking the core barrel assembly relative to the drill string. The driven latch mechanism can further include a refracted groove adapted to lock the plurality of wedge members radially within the core barrel assembly, thereby allowing for faster travel within the drill string. Implementations of the present invention also include drilling systems including such driven latch mechanisms, and methods of retrieving a core sample using such drilling systems.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: July 16, 2013
    Assignee: Longyear TM, Inc.
    Inventors: Christopher L. Drenth, George Iondov, George Ibrahim
  • Publication number: 20110079435
    Abstract: Implementations of the present invention include a core barrel assembly having a driven latch mechanism. The driven latch mechanism can lock the core barrel assembly axially and rotationally relative to a drill string. The driven latch mechanism can include a plurality of wedge members positioned on a plurality of driving surfaces. Rotation of the drill string can cause the plurality of wedge members to wedge between an inner diameter of the drill string and the plurality of driving surfaces, thereby rotationally locking the core barrel assembly relative to the drill string. Implementations of the present invention also include drilling systems including such driven latch mechanisms, and methods of retrieving a core sample using such drilling systems.
    Type: Application
    Filed: October 6, 2010
    Publication date: April 7, 2011
    Applicant: LONGYEAR TM, INC.
    Inventors: Christopher L. Drenth, George Iondov, George Ibrahim
  • Publication number: 20110079436
    Abstract: Implementations of the present invention include a core barrel assembly having a driven latch mechanism. The driven latch mechanism can lock the core barrel assembly axially and rotationally relative to a drill string. The driven latch mechanism can include a plurality of wedge members positioned on a plurality of driving surfaces. Rotation of the drill string can cause the plurality of wedge members to wedge between an inner diameter of the drill string and the plurality of driving surfaces, thereby rotationally locking the core barrel assembly relative to the drill string. The driven latch mechanism can further include a refracted groove adapted to lock the plurality of wedge members radially within the core barrel assembly, thereby allowing for faster travel within the drill string. Implementations of the present invention also include drilling systems including such driven latch mechanisms, and methods of retrieving a core sample using such drilling systems.
    Type: Application
    Filed: December 14, 2010
    Publication date: April 7, 2011
    Applicant: LONGYEAR TM, INC.
    Inventors: Christopher L. Drenth, George Iondov, George Ibrahim
  • Publication number: 20110079433
    Abstract: An assembly may be disposed within a drill string. The assembly may be moved within and along the drill string using hydraulic pressure. A core sample may be collected within the assembly, and the assembly may be retrieved to obtain the core sample. The assembly may include a seal that may be configured to form a seal with different inner diameters of a variable-diameter drill rod of the drill string.
    Type: Application
    Filed: September 29, 2010
    Publication date: April 7, 2011
    Applicant: LONGYEAR TM, INC.
    Inventors: Christopher L. Drenth, George Iondov, George Ibrahim