GB2022598A - Method of making a pipe coupling and method of curing a polyester resin body - Google Patents

Method of making a pipe coupling and method of curing a polyester resin body

Info

Publication number
GB2022598A
GB2022598A GB7917668A GB7917668A GB2022598A GB 2022598 A GB2022598 A GB 2022598A GB 7917668 A GB7917668 A GB 7917668A GB 7917668 A GB7917668 A GB 7917668A GB 2022598 A GB2022598 A GB 2022598A
Authority
GB
United Kingdom
Prior art keywords
sleeve
rubber
mandrel
curing
liner
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.)
Granted
Application number
GB7917668A
Other versions
GB2022598B (en
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.)
Johns Manville Corp
Johns Manville
Original Assignee
Johns Manville Corp
Johns Manville
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 US05/910,920 external-priority patent/US4354891A/en
Application filed by Johns Manville Corp, Johns Manville filed Critical Johns Manville Corp
Publication of GB2022598A publication Critical patent/GB2022598A/en
Application granted granted Critical
Publication of GB2022598B publication Critical patent/GB2022598B/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
    • F16L21/00—Joints with sleeve or socket
    • F16L21/002—Sleeves or nipples for pipes of the same diameter; Reduction pieces
    • F16L21/005—Sleeves or nipples for pipes of the same diameter; Reduction pieces made of elastic material, e.g. partly or completely surrounded by clamping devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/08—Fibrous reinforcements only comprising combinations of different forms of fibrous reinforcements incorporated in matrix material, forming one or more layers, and with or without non-reinforced layers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Moulding By Coating Moulds (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

A pipe coupling comprises a body of fiber glass reinforced plastic which has a rubber sleeve embedded therein. The sleeve is a one piece unit which includes specially shaped sealing gaskets on either end and has a rubber liner spanning the area between these sealing gaskets. The sleeve is stretched onto a steel and plastic molding mandrel, which places the rubber liner under tension, reduces the cross- sectional area of the liner and compensates for thermal expansion of the liner during curing. The mandrel/sleeve combination is rotated in order to wind a thermosetting resin impregnated fiber glass roving around the outer circumference of the mandrel/sleeve combination, thus embedding the sleeve in the fiber glass reinforced resin matrix. The thermosetting resin is cured at elevated temperatures, hardening into a rigid coupling with the embedded rubber sleeve integral therewith. Thereafter the hardened coupling is stripped from the steel and plastic mandrel and subjected to a further curing and finishing operation. The curing of a polyester body with a peroxide while in contact with a rubber surface is also claimed.
GB7917668A 1978-05-30 1979-05-21 Method of making a pipe coupling and method of curing a polyester resin bbody Expired GB2022598B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/910,920 US4354891A (en) 1978-05-30 1978-05-30 Method of curing polyester resin in the presence of rubber
US91822678A 1978-06-23 1978-06-23

Publications (2)

Publication Number Publication Date
GB2022598A true GB2022598A (en) 1979-12-19
GB2022598B GB2022598B (en) 1983-02-09

Family

ID=27129562

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7917668A Expired GB2022598B (en) 1978-05-30 1979-05-21 Method of making a pipe coupling and method of curing a polyester resin bbody

Country Status (7)

Country Link
DE (1) DE2921700A1 (en)
ES (3) ES481021A1 (en)
FI (1) FI791724A (en)
FR (1) FR2427352A1 (en)
GB (1) GB2022598B (en)
GR (1) GR68178B (en)
IT (1) IT1118147B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1209402A1 (en) * 2000-11-23 2002-05-29 Dätwyler AG Schweizerische Kabel-, Gummi- und Kunststoffwerke Pipe coupling

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3068134A (en) * 1954-04-26 1962-12-11 Fmc Corp Method of making composite plastic pipe of reinforcing glass fibers
CH534712A (en) * 1970-08-28 1973-03-15 Lonza Ag Process to improve the processability and the adhesive strength of foamed plastics as core materials in sandwich structures
JPS53424B2 (en) * 1972-06-14 1978-01-09
FR2197445A5 (en) * 1972-08-25 1974-03-22 Bigotte Claude Flexible pipe couplings with rigid casings - made from moulded coatings of fibre reinforced cement or resin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1209402A1 (en) * 2000-11-23 2002-05-29 Dätwyler AG Schweizerische Kabel-, Gummi- und Kunststoffwerke Pipe coupling

Also Published As

Publication number Publication date
IT7949218A0 (en) 1979-05-29
GB2022598B (en) 1983-02-09
ES489125A0 (en) 1980-11-01
IT1118147B (en) 1986-02-24
FI791724A (en) 1979-12-01
ES489124A0 (en) 1981-02-16
ES8103130A1 (en) 1981-02-16
FR2427352A1 (en) 1979-12-28
FR2427352B1 (en) 1982-03-12
GR68178B (en) 1981-11-09
ES481021A1 (en) 1980-07-16
DE2921700A1 (en) 1979-12-13
ES8100455A1 (en) 1980-11-01

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Legal Events

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