US20070113910A1 - Thread protector assembly comprising an open thread protector and an engageable closing cap - Google Patents
Thread protector assembly comprising an open thread protector and an engageable closing cap Download PDFInfo
- Publication number
- US20070113910A1 US20070113910A1 US11/602,190 US60219006A US2007113910A1 US 20070113910 A1 US20070113910 A1 US 20070113910A1 US 60219006 A US60219006 A US 60219006A US 2007113910 A1 US2007113910 A1 US 2007113910A1
- Authority
- US
- United States
- Prior art keywords
- protector
- open
- closing cap
- thread
- thread protector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/005—Protection of pipes or objects of similar shape against external or internal damage or wear specially adapted for the ends of pipes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Buffer Packaging (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Closures For Containers (AREA)
Abstract
A thread protector assembly for protecting threads on the exterior end of a pipe as well as the interior. The assembly comprises an open protector and a closing cap that defines a completely closed plug that is engageable from above to cover over the open protector. The open protector has an internal thread and a bumper at an upper end with cutouts for applying a torque. The closing cap also has cutouts and internal ribs to engage the cutouts on the open protector and transmit torque to the open protector.
Description
- 1. Field of the Invention
- An assembly for protecting threads on the end of a pipe as well as allowing access to the interior that comprises an open thread protector (1) which has an internal thread (3) and in an external periphery of its upper end (4) a protective bumper (5) on which there are cutouts (6) for applying a torque. A closing cap (2) acts as a completely closed plug and has a number of latches (8) located in the internal periphery of its lower end (7), which will deform to engage axially under the lower end (3′) of the open thread protector (1). A stopper plug (9) is formed on the external periphery of the closing cap upper end (10), which also includes cutouts for applying a torque (13) and internal ribs (11) to transmit torque to the cutouts (6) on the open protector. The inner radius of the closing cap (2) engages just slightly against the largest outer radius of open thread protector (1).
- 2. Brief Description of the Prior Art
- Thread protectors protect threads on the end of a pipe and its interior. The present invention relates to an assembly that includes an open protector and an engageable closing cap at the top that allows it to protect the thread of a pipe during the various steps of the fabrication process, such as for example the passage of a drift, internal visual inspection, hydraulic testing and lacquering; also during its subsequent handling and transport.
- Documents U.S. Pat. No. 6,196,270 and U.S. Pat. No. 6,367,508 show known devices for protecting threads on the end of a pipe that include a base portion from which there extends from one side axially a threaded box whose thread couples with the thread at the end of the tube, and on the other side an annular bumper that also extends axially from the base in the direction opposite the box. Such protectors are made from a non-metallic raw material such as high-density polyethylene. The annular bumper has an internal taper such that the internal portion is conical and can also include an external taper that extends from its middle part.
- Generally, known protectors currently are either of the open end type to allow workers to carry out maneuvering techniques and analysis during manufacture of the pipes; or of the closed type such as those cited above, which are used to replace the open handling protectors for the pipe when shipped to an end user. Using first an open handling protector and another that is closed for shipping involves greater raw material use for the same result, as well as an lengthening of the manufacturing time for the pipes, because it requires changing from the open protector, required for a hydraulic test and passage of a chuck, to a closed type protector for shipping.
- The invention solves the problems described above through an assembly that combines both structures, that is, an open type protector and a closed type protector. This is done through utilizing a threaded open type protector which can be covered by a completely closed plug that acts as an engageable closing cap. An easy placement of the plug optimizes manufacturing times, and can be done at the same time. The assembly is of low wall thickness and the use of raw materials is minimized. It also involves less generation of dangerous residues from the typical grease needed to apply and switch from an open protector. The open protector has dimensions that are optimized to allow maximum plant productivity during processing. The completely closed plug which acts as an engageable closing cap adds resistance to front and side impact. The protector assembly is also totally recyclable, when it is formed of a material such as polyethylene polyprophylene, or polyamide. The assembly either can be re-used if it is in good shape upon removal or the plastic can be recycled to make a new protector. Any type of thread or pipe can be used depending on customer requirements.
- The assembly of the closing cap on the open threaded protector must comply with customer specifications as well as with ISO rule 11960 Appendix I: “Thread Protector Design Validation Requirements”.
- The object of this invention then is a protector set for the threaded end of a pipe and of its interior that comprises:
- an open thread protector which has an internal thread and in an external periphery of its upper end a protective bumper on which there are cutouts for applying a torque; and a closing cap acts as a completely closed plug and has a number of latches located in the internal periphery of its lower end which will deform to engage axially under a lower end of the open thread protector; and
- a stopper plug formed on the external periphery of the closing cap upper end, which also includes cutouts for applying a torque and internal ribs to transmit torque to cutouts on the open protector, wherein the inner radius of the completely closed plug engages only slightly against the outer radius of open thread protector.
-
FIG. 1 is an cross-section, front explosion view of a closing cap positioned above an open thread protector according to the invention; and -
FIG. 2 is a cross-sectional front view of an assembly, according to the invention; and -
FIG. 3 is an exterior, front perspective view of a closing cap assembled over the open thread protector. - Said assembly is made up of an
open thread protector 1 and aclosing cap 2. Saidopen thread protector 1 includes aninternal thread 3 that can be coupled to the external thread of a pipe (not illustrated), and aprotective bumper 5 on the exterior periphery of itsupper end 4, on which there are a number of cutouts for the protector'storque 6. -
FIG. 1 illustrates in explosion view how the assembly for protecting threads is to be attached to the end of a pipe (not illustrated). An open thread protector (1) has an internal thread (3) and in an external periphery of its upper end (4) that defines both a protective bumper (5) and cutouts (6) for applying a tightening or removing torque, so as to apply or remove the open thread connector from the pipe end. The open thread protector (1) as well as the closing cap (2) preferably are manufactured from a non-metallic material, such as polyethylene, polypropylene or polyamide. - As shown by the cross-sectional assembly view of in
FIG. 2 , the closing cap (2) when in place over the open thread protector (10 acts as a removable closing cap. Latches (8) located in the internal periphery of its lower end (7), will deform to engage axially under the lower end (3′) of the open thread protector (1). A stopper plug (9) to close off the interior of the pipe is formed on the external periphery of the closing cap upper end (10), which also includes cutouts for applying a torque (13), with a wrench or the like. Internal ribs (11) on the closing cap will transmit any applied torque to the cutouts (6) on the open protector. The inner radius of the closing cap (2) engages against the outer radius of open thread protector (1). - Initial placement of the thread protector assembly can be by a clean and precise axial blow from by a solid instrument such as a wooden mallet or metal hammer. This clean blow initially places closing
cap 2 over theopen protector 1, because from there it can be easily displaced. This is so because the only thing that makes friction on theopen protector 1 is the number ofmechanical latches 8 of theclosing cap 2. In principle, it is not necessary that theopen protector 1 and theclosing cap 2 be aligned to initiate placement. Agap 12 is generated between the internal diameter of theclosing cap 2 and the external diameter of theopen protector 1. During assembly of the unit, it is relatively easy to rotate theclosing cap 2 and to move it slightly forward to re-seat it and couple it with the innerprotector torque cutouts 6. In case the assembly is not properly aligned, it is possible to rotate it slightly and force it forward in such a way that it assembles normally. Once the unit is assembled on the end thread of a pipe, it is very difficult to remove it. Pipes are in contact with each other during handling, and while thegap 12 presents some risk of a small radial displacement of theclosing cap 2 with respect to theopen protector 1, if some of thelatches 8 are out of contact with the lower edge of theopen protector 1. If such radial displacement occurs, that still will not cause a release of theplug 2, since a major contact is verified up to 180° of any radial displacement. -
FIG. 3 is an exterior, front perspective view of a closing cap assembled over the open thread protector. Theprotective bumper 9 and thetorque cutouts 13 can be seen on the upper surface of theclosing cap 2. Theinternal ribs 11 underneath are protected and inside the radius of theclosing cap 2, which only slightly engages a part of the outside of theopen thread protector 1, and the ribs can be rotated to engage inside the open, innerprotector torque cutouts 6. - In general, the wall thicknesses used for the protector assembly will be determined as in the prior art. In the illustrated embodiment, lateral walls with a thickness of at least 2 mm are preferred for the
open protector 1 and closingcap 2 in order to resist lateral impact, and a thickness or spacing of at least 8 mm between theprotective bumpers - While a preferred embodiment of the invention has been shown and described, the invention is to be limited solely by the scope of the appended claims.
Claims (6)
1. An assembly for protecting threads on the end of a pipe and allowing access to the interior thereof, comprising:
an open thread protector (1) having an internal thread (3) and an external periphery proximate an upper end (4) that comprises a protective bumper (5) and cutouts (6) for applying a torque to the protector; and
a closing cap (2) which is adapted to engage over and upon the open thread protector and comprises a number of latches (8) located proximate an internal periphery of its lower end (7), that are adapted to deform to engage axially under a lower end (3′) of the open thread protector (1) when the inner surface of the closing cap (2) slightly engages against the outer surface of open thread protector (1); and
the closing cap upper end (10) further comprises cutouts on its external periphery for applying a torque (13) to internal ribs (11) that are inside the outer radius of the open thread protector and are adapted to transmit torque to the cutouts (6) on the open protector.
2. An assembly according to claim 1 , characterized in that the open thread protector (1) and closing cap (2) are made from a non-metallic material, such as polyethylene, polypropylene or polyamide and the closing cap acts as a completely closed plug when inserted over the open thread protector.
3. An assembly according to claim 1 , characterized in that latches (8) are equally spaced around the internal periphery of lower end (7).
4. An assembly according to claim 1 , characterized in that between internal surface of the closing cap (2) and the external surface of the open protector (1) a clearance space (12) is defined upon assembly that allows relative rotation between said open protector (1) and said closing cap (2).
5. An assembly according to claim 1 , characterized in that a lateral wall of the closing cap (2) has a wall thickness of less than or equal to 2 mm to resist lateral impact, and a protective spacing of bumper (9) is less than or equal to 8 mm to resist any lateral, 45° or frontal impact.
6. An assembly according to claim 1 , characterized in that said internal thread (3) is adapted to be axially coupled over the external thread of a pipe end.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ARP050104885 | 2005-11-22 | ||
ARP050104885A AR051775A1 (en) | 2005-11-22 | 2005-11-22 | A PROTECTIVE ASSEMBLY FOR THE EXTREME THREADED OF A TUBE AND OF ITS INTERIOR THAT INCLUDES AN OPEN THREADED PROTECTOR AND A BLIND COVER ENCASTRABLE TO THE SAME |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070113910A1 true US20070113910A1 (en) | 2007-05-24 |
Family
ID=37715931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/602,190 Abandoned US20070113910A1 (en) | 2005-11-22 | 2006-11-21 | Thread protector assembly comprising an open thread protector and an engageable closing cap |
Country Status (6)
Country | Link |
---|---|
US (1) | US20070113910A1 (en) |
EP (1) | EP1788298B1 (en) |
JP (1) | JP5129952B2 (en) |
CN (1) | CN101045493A (en) |
AR (1) | AR051775A1 (en) |
DE (1) | DE602006004539D1 (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090050230A1 (en) * | 2007-08-21 | 2009-02-26 | Luis Roberto Heritier | End protector device for tubular structures |
US20100200102A1 (en) * | 2009-02-09 | 2010-08-12 | Zeyfang Frederick W | Two-piece pipe end cap |
RU2474751C2 (en) * | 2007-08-21 | 2013-02-10 | Сидерка С.А.И.С. | Protective device for pipe end |
US20130213516A1 (en) * | 2011-08-23 | 2013-08-22 | Drilltec Patents And Technologies Corporation | Universal Pipe Thread Protector |
US20160230916A1 (en) * | 2015-02-06 | 2016-08-11 | Craig Whitney | Devices and assembly for protecting a flange |
US9546029B1 (en) | 2015-11-03 | 2017-01-17 | Karl Keevert | Pipe thread protector |
WO2020005558A1 (en) * | 2018-06-25 | 2020-01-02 | Uniarmour Llc | Thread protector for use with sucker rods and oil tools |
CN112664536A (en) * | 2020-12-16 | 2021-04-16 | 芜湖通和汽车管路系统股份有限公司 | Nut protection plug cap structure for automobile pipeline |
US11136832B2 (en) | 2017-06-28 | 2021-10-05 | Uniarmour Llc | Thread protector for use with sucker rods and oil tools |
US20220003049A1 (en) * | 2018-11-06 | 2022-01-06 | Bewi Energy As | Protector for the ends of an elongate member |
US11320085B2 (en) * | 2018-04-25 | 2022-05-03 | Peter Kroll | System and protector for protecting an end of a pipe |
FR3127544A1 (en) * | 2021-09-28 | 2023-03-31 | Vallourec Oil And Gas France | PROTECTOR FOR A THREADED END OF A TUBULAR COMPONENT |
US11774029B2 (en) | 2021-02-04 | 2023-10-03 | Universal Moulding Co. Ltd. | Open-ended pipe thread protector with seal thereon and seal therefor |
USD1025308S1 (en) | 2019-11-25 | 2024-04-30 | Universal Moulding Co. Ltd. | Pipe thread protector |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN201170063Y (en) * | 2007-08-03 | 2008-12-24 | 乔士军 | Drill rod screw thread protector |
FR2934884B1 (en) * | 2008-08-05 | 2014-01-31 | Vallourec Mannesmann Oil & Gas | METHOD AND DEVICE FOR PROTECTING A THREADED TUBULAR COMPONENT AND TUBULAR COMPONENT PROVIDED WITH THE DEVICE |
FR2964408B1 (en) * | 2010-09-03 | 2013-05-03 | Premium Protector | PETROLEUM EXTRACTION TUBE PROTECTOR |
CN102275682A (en) * | 2011-08-11 | 2011-12-14 | 成都科盛石油科技有限公司 | Protective cover convenient to install and used for external-thread petroleum machinery workpiece |
CN104176371B (en) * | 2014-08-20 | 2017-04-26 | 周福义 | Pipe flange protection cover |
WO2018039874A1 (en) * | 2016-08-29 | 2018-03-08 | 浙江天衣机械有限公司 | Device for protecting thread of petroleum pipe |
CN106185023B (en) * | 2016-08-29 | 2019-03-01 | 浙江天衣机械有限公司 | A kind of oil pipe thread protective device |
Citations (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1640969A (en) * | 1927-05-18 | 1927-08-30 | William H Westerman | Thread guard |
US1776528A (en) * | 1928-11-14 | 1930-09-23 | Herman A Unke | Thread protector |
US2134730A (en) * | 1934-12-19 | 1938-11-01 | Simplex Improvements Inc | Pipe or tube protector |
US2195530A (en) * | 1939-06-17 | 1940-04-02 | Frederick F Murphy | Thread protector |
US2204130A (en) * | 1938-09-15 | 1940-06-11 | Forster Mfg Corp | Pipe thread protector |
US2316013A (en) * | 1941-03-22 | 1943-04-06 | Mulholland Thomas | Pipe thread protector |
US2543960A (en) * | 1947-02-20 | 1951-03-06 | Pittsburgh Screw And Bolt Corp | Thread protector |
US2930409A (en) * | 1956-08-06 | 1960-03-29 | Edward F Higgins | Pin end thread protector for sucker rods and the like |
US3485271A (en) * | 1966-09-30 | 1969-12-23 | Mccreary Tire & Rubber Co | Protector for casings,pipes and other cylindrical objects |
US4020873A (en) * | 1975-07-18 | 1977-05-03 | Precise Metals & Plastics, Inc. | Thread protector for an externally threaded pipe |
US4157100A (en) * | 1977-08-17 | 1979-06-05 | John Turk | Thread protector device |
US4185665A (en) * | 1977-05-20 | 1980-01-29 | Flimon Hughes J | Apparatus for the protection of tubes particularly tubes for drilling petroleum |
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US4549337A (en) * | 1983-07-01 | 1985-10-29 | Alco Industries, Inc. | Method of making a composite thread protector |
US4553567A (en) * | 1984-04-30 | 1985-11-19 | Telander Lee W | Pipe thread protector |
US4582090A (en) * | 1983-04-26 | 1986-04-15 | Hydril Company | Tubular member thread protector |
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US4655256A (en) * | 1985-01-14 | 1987-04-07 | Ampco-Pittsburgh Corporation | Threaded end protector and component |
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US4796668A (en) * | 1984-01-09 | 1989-01-10 | Vallourec | Device for protecting threadings and butt-type joint bearing surfaces of metallic tubes |
US4809752A (en) * | 1986-05-02 | 1989-03-07 | Wilhelm Strodter Maschinen- Und Apparatebau | Thread protector for screw threads, made of a deformable material with a complementary thread |
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US5195562A (en) * | 1988-06-29 | 1993-03-23 | Drilltec Patents & Technologies Co. | Pipe-end protector |
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US5352383A (en) * | 1991-10-18 | 1994-10-04 | Centrax International Corp. | Corrosion inhibitor and sealable thread protector end cap for tubular goods |
US5997049A (en) * | 1997-08-29 | 1999-12-07 | Furon Company | Adjustable leak-tight coupling system |
US6196270B1 (en) * | 1998-05-22 | 2001-03-06 | Drilltec Patents & Technologies Company, Inc. | Thread protector |
US6564875B1 (en) * | 1999-10-12 | 2003-05-20 | Shell Oil Company | Protective device for threaded portion of tubular member |
Family Cites Families (1)
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DE3721541A1 (en) * | 1987-06-30 | 1989-01-12 | Wilfried Dreyfuss | PROTECTIVE DEVICE FOR PIPE ENDS |
-
2005
- 2005-11-22 AR ARP050104885A patent/AR051775A1/en not_active Application Discontinuation
-
2006
- 2006-11-21 US US11/602,190 patent/US20070113910A1/en not_active Abandoned
- 2006-11-22 CN CNA2006101449456A patent/CN101045493A/en active Pending
- 2006-11-22 JP JP2006315489A patent/JP5129952B2/en not_active Expired - Fee Related
- 2006-11-22 DE DE602006004539T patent/DE602006004539D1/en not_active Expired - Fee Related
- 2006-11-22 EP EP06124531A patent/EP1788298B1/en not_active Expired - Fee Related
Patent Citations (33)
Publication number | Priority date | Publication date | Assignee | Title |
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US1640969A (en) * | 1927-05-18 | 1927-08-30 | William H Westerman | Thread guard |
US1776528A (en) * | 1928-11-14 | 1930-09-23 | Herman A Unke | Thread protector |
US2134730A (en) * | 1934-12-19 | 1938-11-01 | Simplex Improvements Inc | Pipe or tube protector |
US2204130A (en) * | 1938-09-15 | 1940-06-11 | Forster Mfg Corp | Pipe thread protector |
US2195530A (en) * | 1939-06-17 | 1940-04-02 | Frederick F Murphy | Thread protector |
US2316013A (en) * | 1941-03-22 | 1943-04-06 | Mulholland Thomas | Pipe thread protector |
US2543960A (en) * | 1947-02-20 | 1951-03-06 | Pittsburgh Screw And Bolt Corp | Thread protector |
US2930409A (en) * | 1956-08-06 | 1960-03-29 | Edward F Higgins | Pin end thread protector for sucker rods and the like |
US3485271A (en) * | 1966-09-30 | 1969-12-23 | Mccreary Tire & Rubber Co | Protector for casings,pipes and other cylindrical objects |
US4020873A (en) * | 1975-07-18 | 1977-05-03 | Precise Metals & Plastics, Inc. | Thread protector for an externally threaded pipe |
US4185665A (en) * | 1977-05-20 | 1980-01-29 | Flimon Hughes J | Apparatus for the protection of tubes particularly tubes for drilling petroleum |
US4157100A (en) * | 1977-08-17 | 1979-06-05 | John Turk | Thread protector device |
US4210179A (en) * | 1978-12-21 | 1980-07-01 | United States Steel Corporation | Pipe-thread protector |
US4337799A (en) * | 1980-09-22 | 1982-07-06 | Hoover C Roger | Thread protector |
US4582090A (en) * | 1983-04-26 | 1986-04-15 | Hydril Company | Tubular member thread protector |
US4549337A (en) * | 1983-07-01 | 1985-10-29 | Alco Industries, Inc. | Method of making a composite thread protector |
US4487228A (en) * | 1983-12-19 | 1984-12-11 | Shell Oil Company | Weather-resistant and self-draining thread protector |
US4796668A (en) * | 1984-01-09 | 1989-01-10 | Vallourec | Device for protecting threadings and butt-type joint bearing surfaces of metallic tubes |
US4553567A (en) * | 1984-04-30 | 1985-11-19 | Telander Lee W | Pipe thread protector |
US4655256A (en) * | 1985-01-14 | 1987-04-07 | Ampco-Pittsburgh Corporation | Threaded end protector and component |
US4616679A (en) * | 1985-05-31 | 1986-10-14 | Benton Jerry A | Pipe thread protector |
US4809752A (en) * | 1986-05-02 | 1989-03-07 | Wilhelm Strodter Maschinen- Und Apparatebau | Thread protector for screw threads, made of a deformable material with a complementary thread |
US4757595A (en) * | 1987-03-02 | 1988-07-19 | Asgard Corporation | Process for protecting ends of oil field tubular products |
US5244015A (en) * | 1987-06-30 | 1993-09-14 | Drilltec Patents & Technologies Co. | Pipe-end protector |
US5195562A (en) * | 1988-06-29 | 1993-03-23 | Drilltec Patents & Technologies Co. | Pipe-end protector |
US4957141A (en) * | 1988-06-29 | 1990-09-18 | Wilfried Dreyfuss | Pipe-end protector |
US5303743A (en) * | 1991-05-08 | 1994-04-19 | Vincent Larry W | Thread protection system |
US5352383A (en) * | 1991-10-18 | 1994-10-04 | Centrax International Corp. | Corrosion inhibitor and sealable thread protector end cap for tubular goods |
US5452749A (en) * | 1991-10-18 | 1995-09-26 | Centrax International Corp. | Corrosion inhibitor and sealable thread protector end cap for tubular goods |
US5997049A (en) * | 1997-08-29 | 1999-12-07 | Furon Company | Adjustable leak-tight coupling system |
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Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8011391B2 (en) | 2007-08-21 | 2011-09-06 | Siderca S.A.I.C. | End protector device for tubular structures |
RU2474751C2 (en) * | 2007-08-21 | 2013-02-10 | Сидерка С.А.И.С. | Protective device for pipe end |
US20090050230A1 (en) * | 2007-08-21 | 2009-02-26 | Luis Roberto Heritier | End protector device for tubular structures |
US20100200102A1 (en) * | 2009-02-09 | 2010-08-12 | Zeyfang Frederick W | Two-piece pipe end cap |
US20130213516A1 (en) * | 2011-08-23 | 2013-08-22 | Drilltec Patents And Technologies Corporation | Universal Pipe Thread Protector |
US20160230916A1 (en) * | 2015-02-06 | 2016-08-11 | Craig Whitney | Devices and assembly for protecting a flange |
US10107440B2 (en) * | 2015-02-06 | 2018-10-23 | Craig Whitney | Devices and assembly for protecting a flange |
US9546029B1 (en) | 2015-11-03 | 2017-01-17 | Karl Keevert | Pipe thread protector |
US11136832B2 (en) | 2017-06-28 | 2021-10-05 | Uniarmour Llc | Thread protector for use with sucker rods and oil tools |
US11320085B2 (en) * | 2018-04-25 | 2022-05-03 | Peter Kroll | System and protector for protecting an end of a pipe |
WO2020005558A1 (en) * | 2018-06-25 | 2020-01-02 | Uniarmour Llc | Thread protector for use with sucker rods and oil tools |
US20220003049A1 (en) * | 2018-11-06 | 2022-01-06 | Bewi Energy As | Protector for the ends of an elongate member |
USD1025308S1 (en) | 2019-11-25 | 2024-04-30 | Universal Moulding Co. Ltd. | Pipe thread protector |
CN112664536A (en) * | 2020-12-16 | 2021-04-16 | 芜湖通和汽车管路系统股份有限公司 | Nut protection plug cap structure for automobile pipeline |
US11774029B2 (en) | 2021-02-04 | 2023-10-03 | Universal Moulding Co. Ltd. | Open-ended pipe thread protector with seal thereon and seal therefor |
FR3127544A1 (en) * | 2021-09-28 | 2023-03-31 | Vallourec Oil And Gas France | PROTECTOR FOR A THREADED END OF A TUBULAR COMPONENT |
WO2023052720A1 (en) * | 2021-09-28 | 2023-04-06 | Vallourec Oil And Gas France | Protector for a threaded end of a tubular component |
Also Published As
Publication number | Publication date |
---|---|
EP1788298B1 (en) | 2008-12-31 |
CN101045493A (en) | 2007-10-03 |
AR051775A1 (en) | 2007-02-07 |
EP1788298A1 (en) | 2007-05-23 |
JP5129952B2 (en) | 2013-01-30 |
JP2007137521A (en) | 2007-06-07 |
DE602006004539D1 (en) | 2009-02-12 |
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Owner name: SIDERCA S.A.I.C., ARGENTINA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:PAGURA, CARLOS LEOPOLDO;DAPINO, GUILLERMO OSCAR;GONZALEZ, MANUEL PAJARO;REEL/FRAME:018776/0311;SIGNING DATES FROM 20061128 TO 20061130 |
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