[go: up one dir, main page]

GB2230311B - Screw thread protection - Google Patents

Screw thread protection

Info

Publication number
GB2230311B
GB2230311B GB9001600A GB9001600A GB2230311B GB 2230311 B GB2230311 B GB 2230311B GB 9001600 A GB9001600 A GB 9001600A GB 9001600 A GB9001600 A GB 9001600A GB 2230311 B GB2230311 B GB 2230311B
Authority
GB
United Kingdom
Prior art keywords
screw thread
thread protection
protection
screw
thread
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.)
Expired - Fee Related
Application number
GB9001600A
Other versions
GB9001600D0 (en
GB2230311A (en
Inventor
Roderick Leonard Shulver
John Misselbrook
Robert Standen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nowsco Well Service Ltd
Nowsco Well Service Inc
Original Assignee
Nowsco Well Service Ltd
Nowsco Well Service Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US06/897,804 external-priority patent/US4692988A/en
Priority claimed from US07/236,026 external-priority patent/US4900071A/en
Application filed by Nowsco Well Service Ltd, Nowsco Well Service Inc filed Critical Nowsco Well Service Ltd
Publication of GB9001600D0 publication Critical patent/GB9001600D0/en
Publication of GB2230311A publication Critical patent/GB2230311A/en
Application granted granted Critical
Publication of GB2230311B publication Critical patent/GB2230311B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • F16N—LUBRICATING
    • F16N15/00—Lubrication with substances other than oil or grease; Lubrication characterised by the use of particular lubricants in particular apparatus or conditions
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042—Threaded
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/06—Surface treatment of parts furnished with screw-thread, e.g. for preventing seizure or fretting
    • 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
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • 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
    • F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/006—Screw-threaded joints; Forms of screw-threads for such joints with straight threads
    • F16L15/009—Screw-threaded joints; Forms of screw-threads for such joints with straight threads with axial sealings having at least one plastically deformable sealing surface

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Lubricants (AREA)
GB9001600A 1986-08-19 1990-01-24 Screw thread protection Expired - Fee Related GB2230311B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US06/897,804 US4692988A (en) 1986-08-19 1986-08-19 Screw thread protection
GB8719000A GB2195728B (en) 1986-08-19 1987-08-11 Screw thread protection
US07/236,026 US4900071A (en) 1988-08-24 1988-08-24 Undersea hydraulic coupling with dovetail seal

Publications (3)

Publication Number Publication Date
GB9001600D0 GB9001600D0 (en) 1990-03-21
GB2230311A GB2230311A (en) 1990-10-17
GB2230311B true GB2230311B (en) 1991-01-02

Family

ID=27263546

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9001600A Expired - Fee Related GB2230311B (en) 1986-08-19 1990-01-24 Screw thread protection

Country Status (1)

Country Link
GB (1) GB2230311B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7472927B2 (en) 2001-12-24 2009-01-06 Hunting Oilfield Services (Uk) Ltd. Tubular member having an anti-galling coating

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6478344B2 (en) * 2000-09-15 2002-11-12 Abb Vetco Gray Inc. Threaded connector
KR20070106556A (en) * 2005-02-14 2007-11-01 스와겔로크 컴패니 Fittings with Lubricated Ferrules

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140117A (en) * 1983-05-17 1984-11-21 Boc Nowsco Ltd Screw-thread protection

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2140117A (en) * 1983-05-17 1984-11-21 Boc Nowsco Ltd Screw-thread protection

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7472927B2 (en) 2001-12-24 2009-01-06 Hunting Oilfield Services (Uk) Ltd. Tubular member having an anti-galling coating

Also Published As

Publication number Publication date
GB9001600D0 (en) 1990-03-21
GB2230311A (en) 1990-10-17

Similar Documents

Publication Publication Date Title
GB2195728B (en) Screw thread protection
GB8606867D0 (en) Screw
GB8531432D0 (en) Screw
GB8709651D0 (en) Threaded element
GB8512465D0 (en) Screw
GB2187408B (en) Self-tapping screw
GB8702231D0 (en) Safety screw cap
GB2192620B (en) Screw cap construction
GB2185081B (en) Screw anchor
AU99965S (en) Screw
GB8616826D0 (en) Screw
GB2185915B (en) Groove point screw
GB8607731D0 (en) Screw
GB2230311B (en) Screw thread protection
GB8519895D0 (en) Screw action securing device
EP0223856A4 (en) Loosening-proof screw
GB8702580D0 (en) Screw feeders
GB2209573B (en) Thread protector
EP0178479A3 (en) Screw device
GB8528569D0 (en) Screw thread improvement
GB8427645D0 (en) Screw thread
GB8607856D0 (en) Contra-thread screw
GB8611417D0 (en) Thread-cutting
CA60919S (en) Screw
GB8609649D0 (en) Thread insert

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920811