GB1477074A - Manufacture of pipe couplings - Google Patents

Manufacture of pipe couplings

Info

Publication number
GB1477074A
GB1477074A GB437275A GB437275A GB1477074A GB 1477074 A GB1477074 A GB 1477074A GB 437275 A GB437275 A GB 437275A GB 437275 A GB437275 A GB 437275A GB 1477074 A GB1477074 A GB 1477074A
Authority
GB
United Kingdom
Prior art keywords
core
sleeve
coupling
cores
nozzle
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
GB437275A
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.)
Hepworth Iron Co Ltd
Original Assignee
Hepworth Iron Co Ltd
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 Hepworth Iron Co Ltd filed Critical Hepworth Iron Co Ltd
Priority to GB437275A priority Critical patent/GB1477074A/en
Priority to ZA377A priority patent/ZA76377B/en
Priority to DK030576AA priority patent/DK152567B/en
Priority to IE159/76A priority patent/IE42251B1/en
Priority to CS76505A priority patent/CS214730B2/en
Priority to PT64746A priority patent/PT64746B/en
Priority to DE2603393A priority patent/DE2603393C2/en
Priority to DD191026A priority patent/DD124239A5/xx
Priority to FR7602400A priority patent/FR2299143A1/en
Priority to FI760226A priority patent/FI760226A/fi
Priority to NL7600937A priority patent/NL7600937A/en
Priority to BR7600594A priority patent/BR7600594A/en
Priority to BE2054793A priority patent/BE838058A/en
Priority to CA244,600A priority patent/CA1081419A/en
Priority to ES444820A priority patent/ES444820A1/en
Priority to NZ179865A priority patent/NZ179865A/en
Priority to SE7600996A priority patent/SE7600996L/en
Priority to SU762319110A priority patent/SU673160A3/en
Priority to IT67226/76A priority patent/IT1057104B/en
Priority to JP51009934A priority patent/JPS602168B2/en
Priority to AU10721/76A priority patent/AU500717B2/en
Publication of GB1477074A publication Critical patent/GB1477074A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14598—Coating tubular articles
    • B29C45/14622—Lining the inner or outer surface of tubular articles
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1635—Making multilayered or multicoloured articles using displaceable mould parts, e.g. retractable partition between adjacent mould cavities
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1657—Making multilayered or multicoloured articles using means for adhering or bonding the layers or parts to each other
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
    • 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
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
    • 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
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/06—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end
    • F16L47/08—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics with sleeve or socket formed by or in the pipe end with sealing rings arranged between the outer surface of one pipe end and the inner surface of the sleeve or socket, the sealing rings being placed previously in the sleeve or socket
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1657—Making multilayered or multicoloured articles using means for adhering or bonding the layers or parts to each other
    • B29C2045/1664—Chemical bonds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/24—Pipe joints or couplings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/26—Sealing devices, e.g. packaging for pistons or pipe joints
    • B29L2031/265—Packings, Gaskets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Joints With Sleeves (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

1477074 Injection moulding pipe couplings HEPWORTH IRON CO Ltd 19 Jan 1976 [31 Jan 1975] 4372/75 Heading B5A [Also in Division F2] A method of manufacturing a plastics pipe coupling of the sleeve or socket and spigot type comprises injection moulding a second annular member on to a preformed first annular member. The latter may also be injection moulded. The members are interconnected by a chemical and/or mechanical bond. One member may be rigid PVC polypropylene or polyethylene and the other member may be plasticised P.V.C. or a cross-linked thermoplastic rubber. The outer member 1 may be formed with axial ribs 4 provided with end undercuts 5 to provide a mechanical key with the inner member 2. The latter may have a wave-like inner surface for gripping the pipe ends. The coupling 1, 2 may be formed by double injection moulding in the mould shown in Fig. 3. The outer first member 1 is formed by injecting from a nozzle 15 into a cavity defined by a block 10, and sleeve cores 11, 12 supported on cores 7, 9. Following the moulding of the member 1, the sleeve core 12 is retracted along the core 9 the sleeve core 11 is retracted along the core 7 with the nozzle 15, and members 13a-14b are moved radially inwardly to define with the member 1 and cores 7, 9 a second mould cavity in which the second member 2 is formed by injection from a second nozzle (16, Fig. 4 not shown). The composite pipe coupling is ejected by retracting the core 9 to strip the coupling from the core 7 and then sliding the core sleeve 12 along to strip the coupling from the core 9.
GB437275A 1975-01-31 1975-01-31 Manufacture of pipe couplings Expired GB1477074A (en)

Priority Applications (21)

Application Number Priority Date Filing Date Title
GB437275A GB1477074A (en) 1975-01-31 1975-01-31 Manufacture of pipe couplings
ZA377A ZA76377B (en) 1975-01-31 1976-01-22 Improvements relating to the manufacture of pipe coupling
DK030576AA DK152567B (en) 1975-01-31 1976-01-27 PROCEDURE FOR THE PREPARATION OF AN ANNUAL RUBBER ASSEMBLY OF ARTICLES
IE159/76A IE42251B1 (en) 1975-01-31 1976-01-28 Improvements relating to the manufacture of pipe couplings
CS76505A CS214730B2 (en) 1975-01-31 1976-01-28 Method of making the pipe joints and device for executing the said method
PT64746A PT64746B (en) 1975-01-31 1976-01-28 Improvements relating to the manufacture of pipe couplings
DE2603393A DE2603393C2 (en) 1975-01-31 1976-01-29 Method for producing an annular plastic composite part
DD191026A DD124239A5 (en) 1975-01-31 1976-01-29
FR7602400A FR2299143A1 (en) 1975-01-31 1976-01-29 IMPROVEMENTS RELATED TO THE MANUFACTURE OF PIPING FITTINGS
FI760226A FI760226A (en) 1975-01-31 1976-01-29
NL7600937A NL7600937A (en) 1975-01-31 1976-01-30 METHOD AND DEVICE FOR MANUFACTURING A PIPE COUPLING FROM PLASTIC MATERIAL, AS WELL AS A PIPE COUPLING MADE UNDER THE APPLICATION OF THIS METHOD.
BR7600594A BR7600594A (en) 1975-01-31 1976-01-30 IMPROVEMENT IN PLASTIC PIPE MANUFACTURING PROCESS AND INJECTION MOLDING EQUIPMENT AT TWO STAGES
BE2054793A BE838058A (en) 1975-01-31 1976-01-30 IMPROVEMENTS RELATED TO THE MANUFACTURE OF PIPING FITTINGS
CA244,600A CA1081419A (en) 1975-01-31 1976-01-30 Manufacture of pipe couplings
ES444820A ES444820A1 (en) 1975-01-31 1976-01-30 Manufacture of pipe couplings
NZ179865A NZ179865A (en) 1975-01-31 1976-01-30 Injection moulding one annulus to another e.g.for pipe coupling
SE7600996A SE7600996L (en) 1975-01-31 1976-01-30 PROCEDURE FOR MANUFACTURE OF A PLASTER ROD COUPLING
SU762319110A SU673160A3 (en) 1975-01-31 1976-01-30 Mould for making coupling from polymeric materials
IT67226/76A IT1057104B (en) 1975-01-31 1976-01-30 PROCEDURE AND DEVICE FOR THE MANUFACTURE OF PLASTIC JOINTS FOR PIPES
JP51009934A JPS602168B2 (en) 1975-01-31 1976-01-31 Pipe fittings and their manufacturing method
AU10721/76A AU500717B2 (en) 1975-01-31 1976-02-02 Moulding pipe couplings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB437275A GB1477074A (en) 1975-01-31 1975-01-31 Manufacture of pipe couplings

Publications (1)

Publication Number Publication Date
GB1477074A true GB1477074A (en) 1977-06-22

Family

ID=9775940

Family Applications (1)

Application Number Title Priority Date Filing Date
GB437275A Expired GB1477074A (en) 1975-01-31 1975-01-31 Manufacture of pipe couplings

Country Status (21)

Country Link
JP (1) JPS602168B2 (en)
AU (1) AU500717B2 (en)
BE (1) BE838058A (en)
BR (1) BR7600594A (en)
CA (1) CA1081419A (en)
CS (1) CS214730B2 (en)
DD (1) DD124239A5 (en)
DE (1) DE2603393C2 (en)
DK (1) DK152567B (en)
ES (1) ES444820A1 (en)
FI (1) FI760226A (en)
FR (1) FR2299143A1 (en)
GB (1) GB1477074A (en)
IE (1) IE42251B1 (en)
IT (1) IT1057104B (en)
NL (1) NL7600937A (en)
NZ (1) NZ179865A (en)
PT (1) PT64746B (en)
SE (1) SE7600996L (en)
SU (1) SU673160A3 (en)
ZA (1) ZA76377B (en)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0031620A2 (en) * 1979-12-21 1981-07-08 Wavin B.V. Method for uniting a plastics fixation part attachable to an end portion of a pipe part with a sealing body, plastics fixation part, plastics pipe provided with said fixation part and apparatus for moulding a fixation part
EP0031978A1 (en) * 1979-12-21 1981-07-15 Wavin B.V. Method for installing a sealing body in a groove of a socket and pipe part of plastics material
US4552384A (en) * 1978-10-18 1985-11-12 Battenfeld Maschinenfabriken Gmbh Molded-joint assembly
EP0253576A2 (en) * 1986-07-18 1988-01-20 Wavin B.V. Conduit couplings
GB2192578A (en) * 1986-07-18 1988-01-20 Wavin Bv Pipe couplings
GB2192577A (en) * 1986-07-18 1988-01-20 Wavin Bv Channel conduit couplings
US4744741A (en) * 1985-07-05 1988-05-17 The Hepworth Iron Company Limited Apparatus for the manufacture of composite articles using rotating molds
US4834428A (en) * 1985-07-01 1989-05-30 Naylor Bros. (Clayware) Limited Pipe connector having an integral sealing member and method of making
US4927184A (en) * 1986-11-07 1990-05-22 Atochem Pipes base on polyolefin resin for manufacturing pipelines and couplings for assembling them
GB2310629A (en) * 1996-02-29 1997-09-03 Applied Rubber Linings Ltd Method and apparatus for moulding a lining for a pipe or tube
EP0794046A2 (en) * 1996-03-08 1997-09-10 Seeber S.r.l. Process for producing plastic articles from at least two components, device and injection mould for executing the process
US5681062A (en) * 1995-09-27 1997-10-28 Kunimorikagaku Ltd. Tubular joint
WO2000053965A1 (en) * 1999-03-10 2000-09-14 Radius Plastics Limited Corrugated pipe connector and method of manufacture
US6231090B1 (en) * 1999-03-31 2001-05-15 Kunimorikagaku Co. Ltd. Tubular joint
GB2360484A (en) * 2000-03-21 2001-09-26 David Mullan Pipe or conduit fitting with an internal seal
WO2001070480A1 (en) * 2000-03-21 2001-09-27 David Mullan Pipe couplings
EP1258661A1 (en) * 2001-05-10 2002-11-20 Takahisa Tachibana Pipe-connector
AU771961B2 (en) * 1999-06-07 2004-04-08 Hobas Engineering Gmbh Pipe fitting and method for the production thereof
ITMI20090538A1 (en) * 2009-04-03 2010-10-04 Coes S P A JOINT FOR HYDRAULIC SEALING OF PIPES OR FITTINGS, PARTICULARLY IN POLYPROPYLENE, FOR HYDRAULIC LOW PRESSURE PLANTS.
WO2011072935A1 (en) * 2009-12-18 2011-06-23 Robert Bosch Gmbh Injection-moulding process for producing a functional part with a clearance
CN114714640A (en) * 2021-12-21 2022-07-08 浙江华丰新材料股份有限公司 Pipeline connector and manufacturing method thereof

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5287855A (en) * 1976-08-20 1977-07-22 Asahi Concrete Works Connecting work of construction among precast* box and culvert
GB1595225A (en) * 1977-02-04 1981-08-12 Hepworth Iron Co Ltd Coupling pipes
GB1572100A (en) * 1977-06-10 1980-07-23 Hepworth Iron Co Ltd Plastics pipe couplings
DE2807022C2 (en) * 1978-02-18 1982-07-01 Fa. Carl Freudenberg, 6940 Weinheim Sealing ring
FR2447261A1 (en) * 1979-01-25 1980-08-22 Lincrusta Two=stage moulding of thin-wall tubes with integral pads or collars - using alternative mould jackets to shape the thinner external features
NL178028C (en) * 1979-03-30 1986-01-02 Wavin Bv HOLDING RING WITH SEAL FOR A TUBE PART.
JPS5943578U (en) * 1982-09-16 1984-03-22 前田製管株式会社 box culvert
FR2550848B1 (en) * 1983-08-18 1988-08-12 Valeo SHUTTER, IN PARTICULAR FOR A HEATING OR AIR-CONDITIONING INSTALLATION OF A VEHICLE INTERIOR, AND ITS MANUFACTURING METHOD
JPS6196069U (en) * 1984-11-29 1986-06-20
NL8500075A (en) * 1985-01-14 1986-08-01 Wavin Bv SEAL FOR A PIPE CONNECTION.
JPH0657968B2 (en) * 1986-02-27 1994-08-03 ド−ピ−建設工業株式会社 Box culvert
JPH0696874B2 (en) * 1986-05-26 1994-11-30 ド−ピ−建設工業株式会社 Box carboad connection method
JPS62169075U (en) * 1986-07-21 1987-10-27
FR2606487B1 (en) * 1986-11-07 1989-03-10 Silix POLYOLEFINIC RESIN TUBES FOR THE PRODUCTION OF PIPES, SLEEVES FOR THEIR ASSEMBLY AND METHOD FOR THEIR MANUFACTURE
FR2612118B1 (en) * 1987-03-09 1989-06-16 Draka Polva Bv CONNECTION FOR RESIN PIPING BASED ON VINYL CHLORIDE COMPRISING A THERMOPLASTIC RUBBER SEALING RING
EP0457947A1 (en) * 1990-05-23 1991-11-27 RAFELD KUNSTSTOFFTECHNIK GmbH & Co. KG Process for manufacturing pipe-coupling out of plastic by injection moulding
FR2752560B1 (en) * 1996-08-23 1998-09-25 Lorraine Capsules Metall PROCESS FOR MAKING A PLUG IN PLASTIC MATERIAL AND PLUG OBTAINED FROM SAID METHOD
NL1008949C2 (en) * 1998-02-11 1999-08-12 Inter Tooling Services Bv Method and device for manufacturing a cuff seal for a plastic fitting or fitting ring.
DE102004027144B4 (en) * 2004-06-03 2015-10-22 Continental Automotive Gmbh Valve
EP1909018B1 (en) * 2006-10-05 2014-08-20 Georg Fischer Rohrleitungssysteme AG Pipe connection with thermal insulation and procedure for the manufacture of the pipe connecting part
DE102007017157B4 (en) 2007-04-11 2014-01-16 Norma Germany Gmbh Sealing sleeve for a pipe connector
FI122782B (en) * 2008-08-12 2012-06-29 Stora Enso Oyj A mold system and method for making a board-based container
DE102011015462B4 (en) * 2011-03-29 2021-07-08 Markus Beck Process for producing a molded part
EP3149379A4 (en) * 2014-05-29 2018-02-21 Cutting Edge Fittings and More, LLC Flexible pipe fitting

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1218140B (en) * 1955-06-15 1966-06-02 Sued West Chemie Gmbh Connection fitting made of plastic
US3016579A (en) * 1957-12-27 1962-01-16 Smith Corona Marchant Inc Method of molding indicia wheels
DE1819118U (en) * 1960-05-24 1960-10-06 Hoechst Ag CONTAINER MADE OF POLYOLEFIN
BE719782A (en) * 1968-08-22 1969-02-03
GB1236907A (en) * 1969-02-25 1971-06-23 Hepworth Iron Co Ltd Improvements in or relating to pipe couplings
DE2110156A1 (en) * 1971-03-03 1972-09-21 Star Kugelhalter Gmbh Dt Injection moulding - two different plastics in sequence where first is harder and accepts moulded lip
DE2157015C2 (en) * 1971-11-17 1982-04-01 Industriewerk Schaeffler Ohg, 8522 Herzogenaurach Method for producing a seal from an injection-molded material

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4552384A (en) * 1978-10-18 1985-11-12 Battenfeld Maschinenfabriken Gmbh Molded-joint assembly
EP0031978A1 (en) * 1979-12-21 1981-07-15 Wavin B.V. Method for installing a sealing body in a groove of a socket and pipe part of plastics material
EP0031620A3 (en) * 1979-12-21 1981-07-15 Wavin B.V. Method for uniting a plastics fixation part attachable to an end portion of a pipe part with a sealing body, plastics fixation part, plastics pipe provided with said fixation part and apparatus for moulding a fixation part
EP0031620A2 (en) * 1979-12-21 1981-07-08 Wavin B.V. Method for uniting a plastics fixation part attachable to an end portion of a pipe part with a sealing body, plastics fixation part, plastics pipe provided with said fixation part and apparatus for moulding a fixation part
US4834428A (en) * 1985-07-01 1989-05-30 Naylor Bros. (Clayware) Limited Pipe connector having an integral sealing member and method of making
US4744741A (en) * 1985-07-05 1988-05-17 The Hepworth Iron Company Limited Apparatus for the manufacture of composite articles using rotating molds
EP0253576A3 (en) * 1986-07-18 1988-07-27 Wavin B.V. Conduit couplings
GB2192577A (en) * 1986-07-18 1988-01-20 Wavin Bv Channel conduit couplings
GB2192578A (en) * 1986-07-18 1988-01-20 Wavin Bv Pipe couplings
GB2192577B (en) * 1986-07-18 1990-01-10 Wavin Bv Channel conduit couplings
GB2192578B (en) * 1986-07-18 1990-02-14 Wavin Bv Pipe couplings
EP0253576A2 (en) * 1986-07-18 1988-01-20 Wavin B.V. Conduit couplings
US4927184A (en) * 1986-11-07 1990-05-22 Atochem Pipes base on polyolefin resin for manufacturing pipelines and couplings for assembling them
US5681062A (en) * 1995-09-27 1997-10-28 Kunimorikagaku Ltd. Tubular joint
GB2310629B (en) * 1996-02-29 1999-06-30 Applied Rubber Linings Ltd Method and apparatus for moulding a lining for a pipe or tube
GB2310629A (en) * 1996-02-29 1997-09-03 Applied Rubber Linings Ltd Method and apparatus for moulding a lining for a pipe or tube
EP0794046A2 (en) * 1996-03-08 1997-09-10 Seeber S.r.l. Process for producing plastic articles from at least two components, device and injection mould for executing the process
EP0794046A3 (en) * 1996-03-08 1999-01-20 Seeber S.r.l. Process for producing plastic articles from at least two components, device and injection mould for executing the process
WO2000053965A1 (en) * 1999-03-10 2000-09-14 Radius Plastics Limited Corrugated pipe connector and method of manufacture
US6231090B1 (en) * 1999-03-31 2001-05-15 Kunimorikagaku Co. Ltd. Tubular joint
AU771961B2 (en) * 1999-06-07 2004-04-08 Hobas Engineering Gmbh Pipe fitting and method for the production thereof
GB2360484A (en) * 2000-03-21 2001-09-26 David Mullan Pipe or conduit fitting with an internal seal
WO2001070480A1 (en) * 2000-03-21 2001-09-27 David Mullan Pipe couplings
EP1258661A1 (en) * 2001-05-10 2002-11-20 Takahisa Tachibana Pipe-connector
CN100342606C (en) * 2001-05-10 2007-10-10 共和橡胶有限公司 Pipe connector
ITMI20090538A1 (en) * 2009-04-03 2010-10-04 Coes S P A JOINT FOR HYDRAULIC SEALING OF PIPES OR FITTINGS, PARTICULARLY IN POLYPROPYLENE, FOR HYDRAULIC LOW PRESSURE PLANTS.
WO2011072935A1 (en) * 2009-12-18 2011-06-23 Robert Bosch Gmbh Injection-moulding process for producing a functional part with a clearance
CN102652053A (en) * 2009-12-18 2012-08-29 罗伯特·博世有限公司 Injection-moulding process for producing a functional part with a clearance
US9296137B2 (en) 2009-12-18 2016-03-29 Robert Bosch Gmbh Injection molding method for manufacturing a functional part having a recess
CN102652053B (en) * 2009-12-18 2016-10-12 罗伯特·博世有限公司 For manufacturing the pressure injection method of the functional part with space
CN114714640A (en) * 2021-12-21 2022-07-08 浙江华丰新材料股份有限公司 Pipeline connector and manufacturing method thereof

Also Published As

Publication number Publication date
PT64746B (en) 1977-08-16
AU500717B2 (en) 1979-05-31
NL7600937A (en) 1976-08-03
JPS602168B2 (en) 1985-01-19
SE7600996L (en) 1976-08-01
NZ179865A (en) 1978-04-03
FI760226A (en) 1976-08-01
ZA76377B (en) 1977-01-26
IE42251B1 (en) 1980-07-02
JPS5217567A (en) 1977-02-09
IE42251L (en) 1976-07-31
IT1057104B (en) 1982-03-10
DE2603393C2 (en) 1986-06-05
DE2603393A1 (en) 1976-08-19
AU1072176A (en) 1977-08-11
PT64746A (en) 1976-02-01
BR7600594A (en) 1976-08-31
CA1081419A (en) 1980-07-15
CS214730B2 (en) 1982-05-28
FR2299143B1 (en) 1978-11-10
BE838058A (en) 1976-05-14
SU673160A3 (en) 1979-07-05
DK30576A (en) 1976-08-01
DK152567B (en) 1988-03-21
DD124239A5 (en) 1977-02-09
FR2299143A1 (en) 1976-08-27
ES444820A1 (en) 1977-09-01

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