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GB1359445A - Electrically insulating pipe couplings - Google Patents

Electrically insulating pipe couplings

Info

Publication number
GB1359445A
GB1359445A GB912173A GB912173A GB1359445A GB 1359445 A GB1359445 A GB 1359445A GB 912173 A GB912173 A GB 912173A GB 912173 A GB912173 A GB 912173A GB 1359445 A GB1359445 A GB 1359445A
Authority
GB
United Kingdom
Prior art keywords
electrically insulating
pipe couplings
insulating pipe
coated
nylon
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
Application number
GB912173A
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.)
EISENBAU ALBER ZIEFLE KG
Original Assignee
EISENBAU ALBER ZIEFLE KG
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
Application filed by EISENBAU ALBER ZIEFLE KG filed Critical EISENBAU ALBER ZIEFLE KG
Publication of GB1359445A publication Critical patent/GB1359445A/en
Expired 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L25/00—Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00
    • F16L25/02—Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00 specially adapted for electrically insulating the two pipe ends of the joint from each other
    • F16L25/023—Construction or details of pipe joints not provided for in, or of interest apart from, groups F16L13/00 - F16L23/00 specially adapted for electrically insulating the two pipe ends of the joint from each other for joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Insulation (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

1359445 Pipe couplings EISENBAU ALBERT ZIEFLE KG 23 Feb 1973 [4 March 1972] 9121/73 Heading F2G An electrically insulating junction member, for coupling into a pipeline, has insulating layers coated on opposing frusto-conical surfaces, which are pressed together, by a ring 16. The layers, including an additional layer 17, which may be of nylon, are coated by a cyclone sintering process. A nylon sealing ring 4 may be omitted. In another form rings 16 and 18 are formed as a single member. On assembly, the screwthreads 15 and the surfaces 5 and 8 each have a hardenable adhesive applied to them.
GB912173A 1972-03-04 1973-02-23 Electrically insulating pipe couplings Expired GB1359445A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722210612 DE2210612A1 (en) 1972-03-04 1972-03-04 ELECTRICALLY INSULATING PIPE CONNECTION

Publications (1)

Publication Number Publication Date
GB1359445A true GB1359445A (en) 1974-07-10

Family

ID=5837985

Family Applications (1)

Application Number Title Priority Date Filing Date
GB912173A Expired GB1359445A (en) 1972-03-04 1973-02-23 Electrically insulating pipe couplings

Country Status (6)

Country Link
AT (1) AT326431B (en)
CH (1) CH549177A (en)
DE (1) DE2210612A1 (en)
FR (1) FR2174955B1 (en)
GB (1) GB1359445A (en)
NL (1) NL7302909A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6209632B1 (en) 1995-06-12 2001-04-03 Marvin L. Holbert Subsurface signal transmitting apparatus
US6264401B1 (en) 1995-12-29 2001-07-24 Shell Oil Company Method for enhancing the flow of heavy crudes through subsea pipelines
US6315497B1 (en) 1995-12-29 2001-11-13 Shell Oil Company Joint for applying current across a pipe-in-pipe system
US6707012B2 (en) 2001-07-20 2004-03-16 Shell Oil Company Power supply for electrically heated subsea pipeline
US6814146B2 (en) 2001-07-20 2004-11-09 Shell Oil Company Annulus for electrically heated pipe-in-pipe subsea pipeline
US7243028B2 (en) 2004-06-14 2007-07-10 Weatherford/Lamb, Inc. Methods and apparatus for reducing electromagnetic signal noise
US7252160B2 (en) 1995-06-12 2007-08-07 Weatherford/Lamb, Inc. Electromagnetic gap sub assembly

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2381229A1 (en) * 1977-02-21 1978-09-15 Kleber Colombes ELECTRICAL INSULATION OF METAL PIPE FLANGES
FR2586078B1 (en) * 1985-08-07 1988-05-06 Telecommunications Sa CONNECTING DEVICE FOR A FLUID SUPPLY SYSTEM
US4848804A (en) * 1987-04-03 1989-07-18 Cajon Company Dielectric coupling
DE4029763A1 (en) * 1990-09-20 1992-03-26 Gok Gmbh & Co Kg Insulated piping connection - has conical pressure surfaces and insulation to maintain spark gap to prevent electrical flow or voltage potential

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3115354A (en) * 1959-12-15 1963-12-24 Mueller Co Insulated pipe coupling
GB1104024A (en) * 1964-04-09 1968-02-21 English Electric Co Ltd Improvements in electrically insulating connector devices
FR1475743A (en) * 1966-01-18 1967-04-07 Insulating gasket for cathodic protection of pipelines

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6209632B1 (en) 1995-06-12 2001-04-03 Marvin L. Holbert Subsurface signal transmitting apparatus
US6405795B2 (en) 1995-06-12 2002-06-18 Weatherford/Lamb, Inc. Subsurface signal transmitting apparatus
US6672383B2 (en) 1995-06-12 2004-01-06 Weatherford/Lamb, Inc. Subsurface signal transmitting apparatus
US7093680B2 (en) 1995-06-12 2006-08-22 Weatherford/Lamb, Inc. Subsurface signal transmitting apparatus
US7252160B2 (en) 1995-06-12 2007-08-07 Weatherford/Lamb, Inc. Electromagnetic gap sub assembly
US6264401B1 (en) 1995-12-29 2001-07-24 Shell Oil Company Method for enhancing the flow of heavy crudes through subsea pipelines
US6315497B1 (en) 1995-12-29 2001-11-13 Shell Oil Company Joint for applying current across a pipe-in-pipe system
US6707012B2 (en) 2001-07-20 2004-03-16 Shell Oil Company Power supply for electrically heated subsea pipeline
US6814146B2 (en) 2001-07-20 2004-11-09 Shell Oil Company Annulus for electrically heated pipe-in-pipe subsea pipeline
US7243028B2 (en) 2004-06-14 2007-07-10 Weatherford/Lamb, Inc. Methods and apparatus for reducing electromagnetic signal noise

Also Published As

Publication number Publication date
FR2174955B1 (en) 1977-04-22
NL7302909A (en) 1973-09-07
CH549177A (en) 1974-05-15
FR2174955A1 (en) 1973-10-19
AT326431B (en) 1975-12-10
ATA188673A (en) 1975-02-15
DE2210612A1 (en) 1973-09-20

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Legal Events

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