Patents by Inventor Michael Everett Leman

Michael Everett Leman 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: 9896893
    Abstract: Present embodiments are directed to a gripping device configured to couple with a pipe element. A housing of the gripping device is configured to extend over and at least partially around a distal end of the pipe element. Torsional clamp devices are configured to engage an outer circumferential surface of the pipe element with frictional engagement features that extend radially inward from the housing. A sealing mechanism is configured to shift a pipe seal relative to the housing and into engagement with the distal end of the pipe element and to facilitate fluid flow through the gripping device into the pipe element.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: February 20, 2018
    Assignee: Tesco Corporation
    Inventors: Michael Everett Leman, Ryan Thomas Bowley, Edgar Fernando Yajure, Doug Greening
  • Publication number: 20160281446
    Abstract: Present embodiments are directed to a gripping device configured to couple with a pipe element. A housing of the gripping device is configured to extend over and at least partially around a distal end of the pipe element. Torsional clamp devices are configured to engage an outer circumferential surface of the pipe element with frictional engagement features that extend radially inward from the housing. A sealing mechanism is configured to shift a pipe seal relative to the housing and into engagement with the distal end of the pipe element and to facilitate fluid flow through the gripping device into the pipe element.
    Type: Application
    Filed: June 6, 2016
    Publication date: September 29, 2016
    Inventors: Michael Everett Leman, Ryan Thomas Bowley, Edgar Fernando Yajure, Doug Greening
  • Patent number: 9359835
    Abstract: A pipe drive system includes a gripping device configured to couple with a pipe element. A housing of the gripping device is configured to extend over and at least partially around a distal end of the pipe element. Torsional clamp devices are configured to engage an outer circumferential surface of the pipe element with frictional engagement features that extend radially inward from the housing. A sealing mechanism is configured to shift a pipe seal relative to the housing and into engagement with the distal end of the pipe element and to facilitate fluid flow through the gripping device into the pipe element.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: June 7, 2016
    Assignee: TESCO CORPORATION
    Inventors: Michael Everett Leman, Ryan Thomas Bowley, Edgar Fernando Yajure, Doug Greening
  • Patent number: 9322228
    Abstract: Embodiments of the present disclosure are directed toward a wedge segment. In certain embodiment, the wedge segment includes an arcuate body having a tapered profile sized to engage with a tubular element, a first surface of the arcuate body comprising a first surface treatment configured to grip an outer surface of the tubular element, and a second surface comprising a second surface treatment configured to grip an inner surface of an annular member disposed about the tubular element.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: April 26, 2016
    Assignee: TESCO CORPORATION
    Inventors: Juan Francisco Davila, Colin Joseph Lewis, Michael Everett Leman
  • Patent number: 9175524
    Abstract: Present embodiments are directed to a gripping device configured to cooperate with a pipe drive system or top drive to provide a sealed engagement with drillpipe elements. The gripping device includes a housing configured to extend over and at least partially around a distal end of the drillpipe element. Further, the gripping device includes a seal area positioned along an inner perimeter of the housing such that, when a seal is inserted in the seal area, the seal is arranged to engage with a face of the distal end of the drillpipe element and a face of the gripping device. Further, the gripping device includes engagement features configured to extend inwardly from the inner perimeter to facilitate coupling of the gripping device with an outer circumferential area of the drillpipe element.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: November 3, 2015
    Assignee: TESCO CORPORATION
    Inventors: Michael Everett Leman, Thomas George Roesner
  • Publication number: 20130319686
    Abstract: Embodiments of the present disclosure are directed toward a wedge segment. In certain embodiment, the wedge segment includes an arcuate body having a tapered profile sized to engage with a tubular element, a first surface of the arcuate body comprising a first surface treatment configured to grip an outer surface of the tubular element, and a second surface comprising a second surface treatment configured to grip an inner surface of an annular member disposed about the tubular element.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 5, 2013
    Applicant: TESCO CORPORATION
    Inventors: Juan Francisco Davila, Colin Joseph Lewis, Michael Everett Leman
  • Publication number: 20130168105
    Abstract: Present embodiments are directed to a gripping device configured to cooperate with a pipe drive system or top drive to provide a sealed engagement with drillpipe elements. The gripping device includes a housing configured to extend over and at least partially around a distal end of the drillpipe element. Further, the gripping device includes a seal area positioned along an inner perimeter of the housing such that, when a seal is inserted in the seal area, the seal is arranged to engage with a face of the distal end of the drillpipe element and a face of the gripping device. Further, the gripping device includes engagement features configured to extend inwardly from the inner perimeter to facilitate coupling of the gripping device with an outer circumferential area of the drillpipe element.
    Type: Application
    Filed: December 28, 2011
    Publication date: July 4, 2013
    Applicant: TESCO CORPORATION
    Inventors: Michael Everett Leman, Thomas George Roesner