Patents by Inventor Hugo Ernst
Hugo Ernst 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: 8096352Abstract: A centralizer for tubular elements is provided which includes an inner part formed by a first material having high mechanical performance and chemical stability and an outer part arranged on said inner part, formed by a second material. The second material may be an autolubricating material. The second material may further possess a low coefficient of friction. The second material may additionally possess lower mechanical performance and chemical stability than the first material. A method of manufacturing the centralizer is also provided, including steps of injecting the first material on a tubular element to form the inner part on the tubular element and injecting the second material to form the outer part on the formed inner part.Type: GrantFiled: April 16, 2009Date of Patent: January 17, 2012Assignee: Siderca S.A.I.C.Inventors: Hugo Ernst, Guillermo Dapino, Matias Pereyra
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Publication number: 20090260802Abstract: A centralizer for tubular elements is provided which includes an inner part formed by a first material having high mechanical performance and chemical stability and an outer part arranged on said inner part, formed by a second material. The second material may be an autolubricating material. The second material may further possess a low coefficient of friction. The second material may additionally possess lower mechanical performance and chemical stability than the first material. A method of manufacturing the centralizer is also provided, including steps of injecting the first material on a tubular element to form the inner part on the tubular element and injecting the second material to form the outer part on the formed inner part.Type: ApplicationFiled: April 16, 2009Publication date: October 22, 2009Inventors: Hugo Ernst, Guillermo Dapino, Matias Pereyra
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Patent number: 7431347Abstract: An elongated drive string assembly comprising a plurality of hollow sucker rods and connecting elements with an axis, connected together and between a drive head located at the surface of an oil well and a rotary pump located deep down hole in an oil well. Each hollow sucker rod has at least a first end comprising an internal female threaded surface engaging an external male threaded surface on a connecting element, such as a nipple. In order to further optimize the stress distribution between the elements, frustro-conical, non-symmetrical threads with a differential diametral taper are used. Preferably two torque shoulders with a maximized mean diameter and cross-sectional area are used to resist storing reactive torque in the drive string. The nipple free end defines a second torque shoulder that adds to the torque transmission during make-up while also defining a small seal at that free end to decrease corrosion erosion problems.Type: GrantFiled: January 31, 2006Date of Patent: October 7, 2008Assignee: Siderca S.A.I.C.Inventors: Hugo A Ernst, Jose A Villasante
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Publication number: 20070018825Abstract: An assembly of metal tube and radio-frequency identification (RFID) labels is provided. RFID labels are attached to the external surface of a tube and are placed at a distance less than 1 mm from the external surface.Type: ApplicationFiled: July 20, 2006Publication date: January 25, 2007Applicant: Siderca SAICInventors: Nelson Morbitzer, Hugo Ernst, Luis Heritier
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Publication number: 20060125234Abstract: An elongated drive string assembly comprising a plurality of hollow sucker rods and a connecting elements with an axis, connected together and between a drive head located at the surface of an oil well and a rotary pump located deep down hole in an oil well. Each hollow sucker rod has at least a first end comprising an internal female threaded surface engaging an external male threaded surface on a connecting element, such as a nipple. In order to further optimize the stress distribution between the elements, frustro-conical, non-symmetrical threads with a differential diametral taper are used. Preferably two torque shoulders with a maximized mean diameter and cross-sectional area are used to resist storing reactive torque in the drive string. The nipple free end defines a second torque shoulder that adds to the torque transmission during make-up while also defining a small seal at that free end to decrease corrosion erosion problems.Type: ApplicationFiled: January 31, 2006Publication date: June 15, 2006Inventors: Hugo Ernst, Jose Villasante
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Patent number: 6997330Abstract: An assembly for storing elongated members, the assembly comprising an elongated support element and a pair of segments. The segments are disposed on opposite sides of the elongated support element from each other, and each of the segments defines a cradle for supporting an elongated member. The pair of segments is joined together at a seam formed by locally heating and melting contacting edges of the segments to fuse them together. Moreover, the pair of segments is fixed to the elongated support element against movement in a longitudinal direction of the elongated support element. The elongated support element has a textured region of raised protrusions, indentations, or holes, over at least a portion of the surface thereof. Each cradle comprises a center portion located longitudinally between a pair of inclined portions.Type: GrantFiled: February 20, 2003Date of Patent: February 14, 2006Assignee: Siderca S.A.I.CInventors: Nelson Mario Pachao-Morbitzer, Guillermo Oscar Dapino, Hugo A. Ernst
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Patent number: 6991267Abstract: An elongated drive string assembly includes a plurality of hollow sucker rods and connecting elements between a drive head located at the surface of an oil well and a rotary pump located deep down in an oil well, with a series of holes at each end to substantially increase the flow of extracted fluid. Each hollow sucker rod has a first end with a torque shoulder, which engages a torque shoulder formed on a connecting element. The threads are frusto-conical, non-symmetrical threads with a differential diametral taper. The torque shoulders have a maximized mean diameter and cross-sectional area to resist storing reactive torque in the drive string.Type: GrantFiled: September 24, 2003Date of Patent: January 31, 2006Assignee: Siderca S.A.I.C.Inventors: Hugo A. Ernst, Daniel Johnson, José Villasante
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Patent number: 6957933Abstract: A metalworking apparatus includes a threading insert with a channel-less chip breaker and a holder for holding the threading insert. The threading insert includes (i) one cooling channel disposed on the top side of the threading insert for each crest and each valley, which terminates near the cutting region, and (ii) a ceramic coating on at least the cutting region of crests and valleys, with each cooling channel being uncoated.Type: GrantFiled: May 30, 2003Date of Patent: October 25, 2005Assignee: Siderca S.A.I.C.Inventors: Nelson M. Pachao-Morbitzer, Hugo A. Ernst
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Publication number: 20040240949Abstract: A metalworking apparatus includes a threading insert with a channel-less chip breaker and a holder for holding the threading insert. The threading insert includes (i) one cooling channel disposed on the top side of the threading insert for each crest and each valley, which terminates near the cutting region, and (ii) a ceramic coating on at least the cutting region of crests and valleys, with each cooling channel being uncoated.Type: ApplicationFiled: May 30, 2003Publication date: December 2, 2004Inventors: Nelson M. Pachao-Morbitzer, Hugo A. Ernst
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Publication number: 20040164209Abstract: An assembly for storing elongated members, the assembly comprising an elongated support element and a pair of segments. The segments are disposed on opposite sides of the elongated support element from each other, and each of the segments defines a cradle for supporting an elongated member. The pair of segments is joined together at a seam formed by locally heating and melting contacting edges of the segments to fuse them together. Moreover, the pair of segments is fixed to the elongated support element against movement in a longitudinal direction of the elongated support element. The elongated support element has a textured region of raised protrusions, indentations, or holes, over at least a portion of the surface thereof. Each cradle comprises a center portion located longitudinally between a pair of inclined portions.Type: ApplicationFiled: February 20, 2003Publication date: August 26, 2004Applicant: SIDERCA S.A.I.C.Inventors: Nelson Mario Pachao-Morbitzer, Guillermo Oscar Dapino, Hugo A. Ernst
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Patent number: 6764108Abstract: An elongated drive string assembly includes a plurality of hollow sucker rods and connecting elements with an axis, connected together and between a drive head located at the surface of an oil well and a rotary pump located deep down in an oil well. Each hollow sucker rod has at least a first end including an internal female threaded surface engaging an external male threaded surface on a connecting element, such as a nipple. The first end also includes a torque shoulder, which engages a torque shoulder formed on the connecting element. The threads are frusto-conical, non-symmetrical threads with a differential diametral taper. The torque shoulders have a maximized mean diameter and cross-sectional area to resist storing reactive torque in the drive string. The nipple has a wall cross-section that increases towards the torque shoulders from each free end, to increase fatigue resistance.Type: GrantFiled: September 26, 2002Date of Patent: July 20, 2004Assignee: SIDERCA S.A.I.C.Inventors: Hugo A. Ernst, Daniel Johnson, José Villasante
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Publication number: 20040113427Abstract: An elongated drive string assembly comprising a plurality of hollow sucker rods and a connecting elements with an axis, connected together and between a drive head located at the surface of an oil well and a rotary pump located deep down hole in an oil well. Each hollow sucker rod has at least a first end comprising an internal female threaded surface engaging an external male threaded surface on a connecting element, such as a nipple. In order to further optimize the stress distribution between the elements, frustro-conical, non-symmetrical threads with a differential diametral taper are used. The torque shoulders have a maximized mean diameter and cross-sectional area to resist storing reactive torque in the drive string. A modified nipple preferably has a small seal at its free end to decrease corrosion erosion problems. A modified rod may have a series of holes at each extreme end, to substantially increase the flow of fluid extracted.Type: ApplicationFiled: September 24, 2003Publication date: June 17, 2004Inventors: Hugo A. Ernst, Daniel Johnson, Jose Villasante
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Publication number: 20030085570Abstract: An elongated drive string assembly comprising a plurality of hollow sucker rods and a connecting elements with an axis, connected together and between a drive head located at the surface of an oil well and a rotary pump located deep down hole in an oil well. Each hollow sucker rod has at least a first end comprising an internal female threaded surface engaging an external male threaded surface on a connecting element, such as a nipple. In order to further optimize the stress distribution between the elements, frustro-conical, non-symmetrical threads with a differential diametral taper are used. The torque shoulders have a maximized mean diameter and cross-sectional area to resist storing reactive torque in the drive string. The nipple preferably has a wall cross-section that increases towards the torque shoulders from each free end, to increase fatigue resistance.Type: ApplicationFiled: September 26, 2002Publication date: May 8, 2003Applicant: SIDERCA S.A.I.C.Inventors: Hugo A. Ernst, Daniel Johnson, Jose Villasante