Patents by Inventor Randall C. LEBLANC

Randall C. LEBLANC 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: 9267338
    Abstract: A disconnect tool includes a bottom housing having a central longitudinal axis, a top housing, a release piston, and a shear sleeve. The bottom housing includes an internal torque transmission portion and an internal locking portion. The top housing includes a lower portion positioned within the bottom housing, where the outer surface includes an external locking portion to engage the internal locking portion of the bottom housing and an external torque transmission portion to engage the internal torque transmission portion of the bottom housing. The release piston translates longitudinally within the top housing along the central longitudinal axis from a locked position to an unlocked position. The shear sleeve secures the release piston in the locked position and disconnects from the release piston at a threshold force on the release piston to allow the release piston to translate along the central longitudinal axis to the unlocked position.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: February 23, 2016
    Assignee: Coiled Tubing Rental Tools, Inc.
    Inventors: Randall C. LeBlanc, Carl S. LeBlanc, Jerry Ray Werlla
  • Patent number: 8973677
    Abstract: A housing, mandrel and bearing assembly positionable in a wellbore includes a torque transmission member adapted to connect to a source of rotational torque (e.g. a downhole motor power output) and a tubular mandrel adapted to connect to a drill bit. A lower tubular housing is adapted to contain a lower bearing and catch sleeve assembly. The catch assembly is adapted to retain the mandrel in the lower housing if the mandrel breaks. An upper tubular housing contains an upper bearing and is adapted to connect to a housing of the downhole motor. A method of assembling the downhole housing, mandrel and bearing assembly is disclosed.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: March 10, 2015
    Assignee: Coiled Tubing Rental Tools, Inc.
    Inventors: Randall C. LeBlanc, Carl S. LeBlanc
  • Publication number: 20150041219
    Abstract: A housing, mandrel and bearing assembly positionable in a wellbore includes a torque transmission member adapted to connect to a source of rotational torque (e.g. a downhole motor power output) and a tubular mandrel adapted to connect to a drill bit. A lower tubular housing is adapted to contain a lower bearing and catch sleeve assembly. The catch assembly is adapted to retain the mandrel in the lower housing if the mandrel breaks. An upper tubular housing contains an upper bearing and is adapted to connect to a housing of the downhole motor. A method of assembling the downhole housing, mandrel and bearing assembly is disclosed.
    Type: Application
    Filed: October 27, 2014
    Publication date: February 12, 2015
    Inventors: Randall C. LeBlanc, Carl S. LeBlanc
  • Patent number: 8869917
    Abstract: A downhole housing, mandrel and bearing assembly 100 includes a flex shaft 20 adapted to connect to a downhole motor power output 309 and a tubular mandrel 30 adapted to connect to a drill bit 370. A lower tubular housing 60 is adapted to contain a lower bearing assembly 90 and catch sleeve assembly 110. The catch assembly 110 is adapted to retain the mandrel 30 in the lower housing if the mandrel breaks. An upper tubular housing 70 contains an upper bearing assembly 80 and is adapted to connect to a housing 302 of the downhole motor 301. A method of assembling the downhole housing, mandrel and bearing assembly 100 is disclosed.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: October 28, 2014
    Assignee: Coiled Tubing Rental Tools, Inc.
    Inventors: Randall C. LeBlanc, Carl S. LeBlanc
  • Publication number: 20120325561
    Abstract: A downhole housing, mandrel and bearing assembly 100 includes a flex shaft 20 adapted to connect to a downhole motor power output 309 and a tubular mandrel 30 adapted to connect to a drill bit 370. A lower tubular housing 60 is adapted to contain a lower bearing assembly 90 and catch sleeve assembly 110. The catch assembly 110 is adapted to retain the mandrel 30 in the lower housing if the mandrel breaks. An upper tubular housing 70 contains an upper bearing assembly 80 and is adapted to connect to a housing 302 of the downhole motor 301. A method of assembling the downhole housing, mandrel and bearing assembly 100 is disclosed.
    Type: Application
    Filed: June 22, 2011
    Publication date: December 27, 2012
    Inventors: Randall C. LEBLANC, Carl S. LEBLANC