Patents by Inventor Anton Krijnen
Anton Krijnen 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: 9932211Abstract: A stabilizer for a line may include a guide configured for arrangement on the line to resist and/or damp lateral motions of the line where the guide may include a guide jacket having a static sleeve configured to allow the line to pass through the guide and a fortifying bracket configured to reinforce the guide jacket and configured to interface with a hanging system to support the guide jacket and maintain the guide jacket in position on the line.Type: GrantFiled: November 30, 2015Date of Patent: April 3, 2018Assignee: National Oilwell Varco, L.P.Inventor: Anton Krijnen
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Patent number: 9796567Abstract: A stabilizer for a line may include a guide configured for arrangement on the line to resist and/or dampen lateral motions of the line where the guide may include a guide jacket having a static sleeve configured to allow the line to pass through the guide and a fortifying bracket configured to reinforce the guide jacket and configured to interface with a hanging system to support the guide jacket and maintain the guide jacket in position on the line.Type: GrantFiled: June 4, 2014Date of Patent: October 24, 2017Assignee: National Oilwell Varco, L.P.Inventor: Anton Krijnen
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Publication number: 20160122163Abstract: A stabilizer for a line may include a guide configured for arrangement on the line to resist and/or damp lateral motions of the line where the guide may include a guide jacket having a static sleeve configured to allow the line to pass through the guide and a fortifying bracket configured to reinforce the guide jacket and configured to interface with a hanging system to support the guide jacket and maintain the guide jacket in position on the line.Type: ApplicationFiled: November 30, 2015Publication date: May 5, 2016Inventor: Anton Krijnen
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Publication number: 20150353331Abstract: A stabilizer for a line may include a guide configured for arrangement on the line to resist and/or dampen lateral motions of the line where the guide may include a guide jacket having a static sleeve configured to allow the line to pass through the guide and a fortifying bracket configured to reinforce the guide jacket and configured to interface with a hanging system to support the guide jacket and maintain the guide jacket in position on the line.Type: ApplicationFiled: June 4, 2014Publication date: December 10, 2015Applicant: National Oilwell Varco, L.P.Inventor: Anton Krijnen
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Patent number: 8752619Abstract: A clamping device for supporting a well string in a borehole includes a base plate with a central opening and primary clamp body clamp body supported for linear motion relative to the base plate. The clamping device further includes other clamp bodies supported for independent linear motion relative to the base plate. In certain embodiments, the clamping bodies are supported for pivoting motion to open and close the central opening. Each of the clamp bodies carries a gripping member on a face thereof for engaging a well string component received in the central opening. A drive mechanism is coupled to the clamp bodies and configured to move the clamp bodies relative to the base plate.Type: GrantFiled: April 21, 2011Date of Patent: June 17, 2014Assignee: National Oilwell Varco, L.P.Inventors: Rene Mulder, Anton Krijnen, Niels De Keijzer, Richard Verhoef
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Patent number: 8632111Abstract: An apparatus for handling a pipe having a body, the body defining an open throat that is adapted to receive a pipe, a plurality of jaws hingedly mounted to the body that are adapted to engage a pipe while preventing the pipe from engaging the body, each of the jaws defining a concave portion that is adapted to engage the pipe, the apparatus further including respective over-center mechanisms that are arranged between and operatively coupled to the body and each one of the plurality of jaws, each respective over-center mechanism being adapted to inhibit a respective one of the plurality of jaws from closing when jaws are open and to inhibit a respective one of the plurality of jaws from opening and disengaging from a pipe when the jaws are closed on the pipe.Type: GrantFiled: August 9, 2004Date of Patent: January 21, 2014Assignee: Varco I/P, Inc.Inventors: Anton Krijnen, Neils DeKeijzer, Rene Mulder, Joe Berry
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Publication number: 20110259576Abstract: A clamping device for supporting a well string in a borehole includes a base plate with a central opening and primary clamp body clamp body supported for linear motion relative to the base plate. The clamping device further includes other clamp bodies supported for independent linear motion relative to the base plate. In certain embodiments, the clamping bodies are supported for pivoting motion to open and close the central opening. Each of the clamp bodies carries a gripping member on a face thereof for engaging a well string component received in the central opening. A drive mechanism is coupled to the clamp bodies and configured to move the clamp bodies relative to the base plate.Type: ApplicationFiled: April 21, 2011Publication date: October 27, 2011Applicant: National Oilwell Varco, L.P.Inventors: Rene Mulder, Anton Krijnen, Niels De Keijzer, Richard Verhoef
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Patent number: 7753138Abstract: A system for coupling a pipe segment to a pipe string is provided that includes a top drive assembly having an output shaft; and a pipe running tool coupled to the top drive assembly and rotatable by the output shaft of the top drive assembly. The pipe running tool includes an internal gripper for insertion within an internal diameter of the pipe segment and a tapered slip cone section, which slidably receives corresponding tapered surfaces of a plurality of slips, such that a vertical force on the slips causes the slips to move radially outwardly into gripping engagement with the internal diameter of the pipe segment, and wherein the vertical force applied to the slips is sufficient to allow the gripping engagement of the slips with the internal diameter of the pipe segment to transmit a torque from the top drive output shaft to the pipe segment.Type: GrantFiled: June 24, 2005Date of Patent: July 13, 2010Assignee: Varco I/P, Inc.Inventors: Daniel Juhasz, George Boyadjieff, Brian L. Eidem, Pamela Eidem, legal representative, Hans van Rijzingen, Herman M. Kamphorst, Hans Joachim Dietrich Böttger, Gustaaf Louis van Wechem, David Mason, Anton Krijnen
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Publication number: 20100155140Abstract: A system for coupling a pipe segment to a pipe string is provided that includes a top drive assembly having a threaded output shaft; and a pipe running tool threadingly coupled to the threaded output shaft of the top drive assembly such that the primary load of the pipe running tool is supported by the threads of the output shaft of the top drive assembly, and wherein the pipe running tool is rotatable by the output shaft and further includes a pipe engaging portion for grippingly engaging the pipe segment sufficient to transmit a torque from the top drive output shaft to the pipe segment.Type: ApplicationFiled: March 1, 2010Publication date: June 24, 2010Applicant: VARCO I/P, INC.Inventors: Daniel Juhasz, George Boyadjieff, Brian L. Eidem, Hans van Rijzingen, Herman M. Kamphorst, Hans Joachim Dietrich Böttger, Gustaaf Louis van Wechem, David Mason, Anton Krijnen
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Patent number: 7699121Abstract: A system for coupling a pipe segment to a pipe string is provided that includes a top drive assembly having a threaded output shaft; and a pipe running tool threadingly coupled to the threaded output shaft of the top drive assembly such that the primary load of the pipe running tool is supported by the threads of the output shaft of the top drive assembly, and wherein the pipe running tool is rotatable by the output shaft and further includes a pipe engaging portion for grippingly engaging the pipe segment sufficient to transmit a torque from the top drive output shaft to the pipe segment.Type: GrantFiled: June 24, 2005Date of Patent: April 20, 2010Assignee: Varco I/P, Inc.Inventors: Daniel Juhasz, George Boyadjieff, Brian L. Eidem, Pamela Eidem, legal representative, Hans van Rijzingen, Herman M. Kamphorst, Hans Joachim Dietrich Böttger, Gustaaf Louis van Wechem, David Mason, Anton Krijnen
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Publication number: 20080136203Abstract: An apparatus for facilitating handling pipe, the apparatus comprising a body (2) defining an open throat (11), and at least one jaw (12, 13) having a concave side for engaging a pipe the concave side having two opposed ends characterised in that said at least one jaw (12, 13) further comprises a jaw portion (14a, 15a) extending behind said concave side, said jaw portion hingedly mounted (16, 17) to said body (2) between said two opposed ends about which said at least one jaw (12, 13) is rotatable with respect to the body (2) to engage a pipe. A method for facilitating handling pipe, the apparatus of the invention, the method comprising the steps of lowering the throat of the apparatus over a pipe, the at least one jaw rotating to engage the pipe.Type: ApplicationFiled: August 9, 2004Publication date: June 12, 2008Applicants: VARCO I/P, INC.Inventors: Anton Krijnen, Neils DeKeijzer, Rene Mulder, Joe Berry
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Patent number: 7303021Abstract: An elevator having, in at least certain aspects, an elevator body with two opposed ends and an elevator opening in the body, a door pivotably mounted to the body for selectively closing off the elevator opening, a lock bar on the elevator body, door latch apparatus on the door including a movable member to selectively and releasably hold the lockbar, and locking apparatus for selectively locking the door in position; and, in certain aspects, verification apparatus for maintaining the locking apparatus in position.Type: GrantFiled: September 20, 2005Date of Patent: December 4, 2007Assignee: Varco I/P, Inc.Inventors: Mike Schats, Bob DePont, Pieter Dekker, Anton Krijnen
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Publication number: 20070062705Abstract: An elevator having, in at least certain aspects, an elevator body with two opposed ends and an elevator opening in the body, a door pivotably mounted to the body for selectively closing off the elevator opening, a lock bar on the elevator body, door latch apparatus on the door including a movable member to selectively and releasably hold the lockbar, and locking apparatus for selectively locking the door in position; and, in certain aspects, verification apparatus for maintaining the locking apparatus in position.Type: ApplicationFiled: September 20, 2005Publication date: March 22, 2007Inventors: Mike Schats, Bob DePont, Pieter Dekker, Anton Krijnen
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Publication number: 20060124293Abstract: A system for coupling a pipe segment to a pipe string is provided that includes a top drive assembly having a threaded output shaft; and a pipe running tool threadingly coupled to the threaded output shaft of the top drive assembly such that the primary load of the pipe running tool is supported by the threads of the output shaft of the top drive assembly, and wherein the pipe running tool is rotatable by the output shaft and further includes a pipe engaging portion for grippingly engaging the pipe segment sufficient to transmit a torque from the top drive output shaft to the pipe segment.Type: ApplicationFiled: June 24, 2005Publication date: June 15, 2006Inventors: Daniel Juhasz, George Boyadjieff, Brian Eidem, Hans van Rijzingen, Herman Kamphorst, Hans Joachim Bottger, Gustaaf Louis van Wechem, David Mason, Anton Krijnen
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Publication number: 20060118293Abstract: A system for coupling a pipe segment to a pipe string is provided that includes a top drive assembly having an output shaft; and a pipe running tool coupled to the top drive assembly and rotatable by the output shaft of the top drive assembly. The pipe running tool includes an internal gripper for insertion within an internal diameter of the pipe segment and a tapered slip cone section, which slidably receives corresponding tapered surfaces of a plurality of slips, such that a vertical force on the slips causes the slips to move radially outwardly into gripping engagement with the internal diameter of the pipe segment, and wherein the vertical force applied to the slips is sufficient to allow the gripping engagement of the slips with the internal diameter of the pipe segment to transmit a torque from the top drive output shaft to the pipe segment.Type: ApplicationFiled: June 24, 2005Publication date: June 8, 2006Inventors: Daniel Juhasz, George Boyadjieff, Brian Eidem, Hans Rijzingen, Herman Kamphorst, Hans Bottger, Gustaaf Wechem, David Mason, Anton Krijnen
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Patent number: 6896048Abstract: A rotary seal assembly for a rotary support table for use in drilling systems and the like to provide pressurized fluid to a rotary slip assembly disposed within the rotary support table is provided. The rotary seal assembly is designed to be coupled to an existing rotary support table which is used to rotate a drill string, and includes a powered slip that is powered into an engaged position to securely engage a pipe segment, for example, a casing segment.Type: GrantFiled: December 20, 2002Date of Patent: May 24, 2005Assignee: Varco I/P, Inc.Inventors: David Mason, Anton Krijnen, René Mulder
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Patent number: 6845814Abstract: A rotary slip for supporting a drill string having a plurality of slip segments connected to define an opening for insertion of the drill string, wherein each slip segment comprises a head region, a toe region, and an inner radial surface axially extending between the head and toe regions, and wherein the inner radial surface of each slip segment comprises a circumferential groove. A plurality of axially aligned drill string gripping inserts are attached to each slip segment between the head region and the circumferential groove, wherein each insert comprises a gripping surface for contacting the drill string. A load ring is disposed within the circumferential groove of each slip element, the load ring comprising at least one securing element which is engaged by one of the plurality of axially aligned inserts to secure the load ring within the circumferential groove.Type: GrantFiled: January 3, 2003Date of Patent: January 25, 2005Assignee: Varco I/P, Inc.Inventors: David Mason, Albert De Pont, Hans Van Rijzingen, Anton Krijnen, Cornelis De Laat
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Publication number: 20030173117Abstract: A rotary slip for supporting a drill string having a plurality of slip segments connected to define an opening for insertion of the drill string, wherein each slip segment comprises a head region, a toe region, and an inner radial surface axially extending between the head and toe regions, and wherein the inner radial surface of each slip segment comprises a circumferential groove. A plurality of axially aligned drill string gripping inserts are attached to each slip segment between the head region and the circumferential groove, wherein each insert comprises a gripping surface for contacting the drill string. A load ring is disposed within the circumferential groove of each slip element, the load ring comprising at least one securing element which is engaged by one of the plurality of axially aligned inserts to secure the load ring within the circumferential groove.Type: ApplicationFiled: January 3, 2003Publication date: September 18, 2003Inventors: David Mason, Albert De Pont, Hans Van Rijzingen, Anton Krijnen, Cornelis De Laat
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Publication number: 20030150647Abstract: A rotary seal assembly for a rotary support table for use in drilling systems and the like to provide pressurized fluid to a rotary slip assembly disposed within the rotary support table is provided. The rotary seal assembly is designed to be coupled to an existing rotary support table which is used to rotate a drill string, and includes a powered slip that is powered into an engaged position to securely engage a pipe segment, for example, a casing segment.Type: ApplicationFiled: December 20, 2002Publication date: August 14, 2003Inventors: David Mason, Anton Krijnen, Rene Mulder
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Patent number: D533432Type: GrantFiled: September 20, 2005Date of Patent: December 12, 2006Assignee: Varco I/P, Inc.Inventors: Mike Schats, Bob DePont, Pieter Dekker, Anton Krijnen