Patents by Inventor Joseph James Liotta
Joseph James Liotta 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).
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Patent number: 9708877Abstract: A blowout preventer for sealing a tubular of a wellbore is provided. The blowout preventer has a housing having a bore therethrough for receiving the tubular, at least one ram slidably positionable in the housing (each of the rams having a ram block for sealing engagement about the tubular), an actuator for selectively driving the ram block (the actuator comprising a piston slidably positionable in a cylinder), and a monitor for detecting the piston therein. The monitor has a visual indicator on an exterior of the cylinder. The visual indicator is operatively coupled to the piston for displaying a position of the piston as the piston travels within the cylinder whereby a position of the ram may be determined.Type: GrantFiled: February 4, 2015Date of Patent: July 18, 2017Assignee: National Oilwell Varco, L.P.Inventors: Joseph James Liotta, Eric Trevor Ensley, Christopher Dale Johnson
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Patent number: 9580987Abstract: A blowout preventer includes a housing having a flow path therethrough in fluid communication with a wellbore penetrating a subsurface formation and a sealing assembly positionable in the housing about the flow path. The sealing assembly includes a piston slidably positionable in the housing and a packer element. The packer element includes a plurality of fingers and a packer seal. The fingers include a housing portion and a piston portion. The housing portion is slidably movable along the housing and the piston portion is slidingly movable along the piston. The fingers are engageable by the piston and movable to a sealed position about the flow path, and the packer seal is energized to form a seal about the blowout preventer to seal the wellbore in the subsurface formation.Type: GrantFiled: March 28, 2014Date of Patent: February 28, 2017Assignee: National Oilwell Varco, L.P.Inventors: Joseph James Liotta, Eric Trevor Ensley, Christopher Dale Johnson
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Patent number: 9441443Abstract: The disclosure relates to a seal assembly for a ram of a blowout preventer for sealing a wellbore penetrating a subterranean formation. The wellbore has a tubular to pass fluid therefrom. The rams are positionable about the tubular. The seal assembly includes a compound seal carried by the ram. The compound seal includes a face seal having a sealing surface sealingly engageable about the tubular and a support seal positionable adjacent to the face seal a distance from the sealing surface. The sealing surface extends along a front face thereof engageable with at least one of the tubular and the face seal of another ram. The support seal is non-engageable with the tubular during sealing and is more deformable than the face seal whereby the compound seal is supported during sealing.Type: GrantFiled: January 27, 2015Date of Patent: September 13, 2016Assignee: National Oilwell Varco, L.P.Inventors: Kyle Brett Cantlon, Joseph James Liotta
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Patent number: 9428994Abstract: The present disclosure relates to a monitor for a blowout preventer of a wellbore. The blowout preventer includes a housing, rams, and an actuator comprising a cylinder with a piston. The piston is operatively connectable with the ram and movable therewith. The monitor includes a monitor base operatively connectable to the cylinder (the monitor base having an interior side inside the cylinder and an exterior side outside the cylinder), an interior plate positionable inside the cylinder about the interior side of the base (the interior plate operatively connectable to the piston and movable therewith), an exterior plate positionable outside the cylinder about the exterior surface of the monitor base (the exterior plate coupled by magnets to the interior plate and rotatable therewith), and a trigger sensor operatively connectable about the monitor base and the exterior plate to detect rotation thereof whereby a position of the ram may be determined.Type: GrantFiled: June 27, 2014Date of Patent: August 30, 2016Assignee: National Oilwell Varco, L.P.Inventors: James Ray Landrith, II, Roger Dale Brown, Jonathan Lewis Buelow, Joseph James Liotta, Eric Trevor Ensley, Christopher Dale Johnson
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Publication number: 20160215583Abstract: The disclosure relates to a seal assembly for a ram of a blowout preventer for sealing a wellbore penetrating a subterranean formation. The wellbore has a tubular to pass fluid therefrom. The rams are positionable about the tubular. The seal assembly includes a compound seal carried by the ram. The compound seal includes a face seal having a sealing surface sealingly engageable about the tubular and a support seal positionable adjacent to the face seal a distance from the sealing surface. The sealing surface extends along a front face thereof engageable with at least one of the tubular and the face seal of another ram. The support seal is non-engageable with the tubular during sealing and is more deformable than the face seal whereby the compound seal is supported during sealing.Type: ApplicationFiled: January 27, 2015Publication date: July 28, 2016Inventors: Kyle Brett Cantlon, Joseph James Liotta
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Publication number: 20150275609Abstract: A blowout preventer and seal assembly for sealing a wellbore penetrating a subsurface formation is provided. The blowout preventer includes a housing having a flow path therethrough in fluid communication with the wellbore and a sealing assembly positionable in the housing about the flow path. The sealing assembly includes a piston slidably positionable in the housing and a packer element. The packer element includes a plurality of fingers and a packer seal. The fingers include a housing portion and a piston portion. The housing portion is slidably movable along the housing and the piston portion is slidingly movable along the piston. The fingers are engageable by the piston and movable to a sealed position about the flow path whereby the packer seal is energized to form a seal about the blowout preventer.Type: ApplicationFiled: March 28, 2014Publication date: October 1, 2015Applicant: National Oilwell Varco, L.P.Inventors: Joseph James Liotta, Eric Trevor Ensley, Christopher Dale Johnson
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Publication number: 20150159459Abstract: A blowout preventer for sealing a tubular of a wellbore is provided. The blowout preventer has a housing having a bore therethrough for receiving the tubular, at least one ram slidably positionable in the housing (each of the rams having a ram block for sealing engagement about the tubular), an actuator for selectively driving the ram block (the actuator comprising a piston slidably positionable in a cylinder), and a monitor for detecting the piston therein. The monitor has a visual indicator on an exterior of the cylinder. The visual indicator is operatively coupled to the piston for displaying a position of the piston as the piston travels within the cylinder whereby a position of the ram may be determined.Type: ApplicationFiled: February 4, 2015Publication date: June 11, 2015Inventors: Joseph James Liotta, Eric Trevor Ensley, Christopher Dale Johnson
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Patent number: 8978698Abstract: A blowout preventer for sealing a tubular of a wellbore is provided. The blowout preventer has a housing having a bore therethrough for receiving the tubular, at least one ram slidably positionable in the housing (each of the rams having a ram block for sealing engagement about the tubular), an actuator for selectively driving the ram block (the actuator comprising a piston slidably positionable in a cylinder), and a monitor for detecting the piston therein. The monitor has a visual indicator on an exterior of the cylinder. The visual indicator is operatively coupled to the piston for displaying a position of the piston as the piston travels within the cylinder whereby a position of the ram may be determined.Type: GrantFiled: June 24, 2011Date of Patent: March 17, 2015Assignee: National Oilwell Varco, L.P.Inventors: Joseph James Liotta, Eric Trevor Ensley, Christopher Dale Johnson
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Publication number: 20140311735Abstract: The present disclosure relates to a monitor for a blowout preventer of a wellbore. The blowout preventer includes a housing, rams, and an actuator comprising a cylinder with a piston. The piston is operatively connectable with the ram and movable therewith. The monitor includes a monitor base operatively connectable to the cylinder (the monitor base having an interior side inside the cylinder and an exterior side outside the cylinder), an interior plate positionable inside the cylinder about the interior side of the base (the interior plate operatively connectable to the piston and movable therewith), an exterior plate positionable outside the cylinder about the exterior surface of the monitor base (the exterior plate coupled by magnets to the interior plate and rotatable therewith), and a trigger sensor operatively connectable about the monitor base and the exterior plate to detect rotation thereof whereby a position of the ram may be determined.Type: ApplicationFiled: June 27, 2014Publication date: October 23, 2014Inventors: James Ray Landrith, II, Roger Dale Brown, Jonathan Lewis Buelow, Joseph James Liotta, Eric Trevor Ensley, Christopher Dale Johnson
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Publication number: 20120000646Abstract: A blowout preventer for sealing a tubular of a wellbore is provided. The blowout preventer has a housing having a bore therethrough for receiving the tubular, at least one ram slidably positionable in the housing (each of the rams having a ram block for sealing engagement about the tubular), an actuator for selectively driving the ram block (the actuator comprising a piston slidably positionable in a cylinder), and a monitor for detecting the piston therein. The monitor has a visual indicator on an exterior of the cylinder. The visual indicator is operatively coupled to the piston for displaying a position of the piston as the piston travels within the cylinder whereby a position of the ram may be determined.Type: ApplicationFiled: June 24, 2011Publication date: January 5, 2012Applicant: NATIONAL OILWELL VARCO, L.P.Inventors: Joseph James Liotta, Eric Trevor Ensley, Christopher Dale Johnson