IT1037860B - Pezzo sagomato di perforazione in materiale sintetico saldabile - Google Patents

Pezzo sagomato di perforazione in materiale sintetico saldabile

Info

Publication number
IT1037860B
IT1037860B IT23022/75A IT2302275A IT1037860B IT 1037860 B IT1037860 B IT 1037860B IT 23022/75 A IT23022/75 A IT 23022/75A IT 2302275 A IT2302275 A IT 2302275A IT 1037860 B IT1037860 B IT 1037860B
Authority
IT
Italy
Prior art keywords
arcuate members
main pipe
arcuate
perforation
hinge member
Prior art date
Application number
IT23022/75A
Other languages
English (en)
Original Assignee
Fischer Ag Georg
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 Fischer Ag Georg filed Critical Fischer Ag Georg
Application granted granted Critical
Publication of IT1037860B publication Critical patent/IT1037860B/it

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3404Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint
    • B29C65/342Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the type of heated elements which remain in the joint comprising at least a single wire, e.g. in the form of a winding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3468Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the means for supplying heat to said heated elements which remain in the join, e.g. special electrical connectors of windings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112Single lapped joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5224Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces
    • B29C66/52241Joining tubular articles for forming fork-shaped connections, e.g. for making Y-shaped pieces with two right angles, e.g. for making T-shaped pieces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5225Joining tubular articles for forming cross-shaped connections, e.g. for making X-shaped pieces
    • B29C66/52251Joining tubular articles for forming cross-shaped connections, e.g. for making X-shaped pieces with four right angles, e.g. for making +-shaped pieces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5229Joining tubular articles involving the use of a socket
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02Welded joints; Adhesive joints
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02Welded joints; Adhesive joints
    • F16L47/03Welded joints with an electrical resistance incorporated in the joint
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/26Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics for branching pipes; for joining pipes to walls; Adaptors therefor
    • F16L47/28Joining pipes to walls or to other pipes, the axis of the joined pipe being perpendicular to the wall or to the axis of the other pipe
    • F16L47/30Joining pipes to walls or to other pipes, the axis of the joined pipe being perpendicular to the wall or to the axis of the other pipe using attaching means embracing the pipe
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/34Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement"
    • B29C65/3472Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint
    • B29C65/3476Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic
    • B29C65/348Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" characterised by the composition of the heated elements which remain in the joint being metallic with a polymer coating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Branch Pipes, Bends, And The Like (AREA)
IT23022/75A 1974-05-10 1975-05-06 Pezzo sagomato di perforazione in materiale sintetico saldabile IT1037860B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH640574A CH570577A5 (it) 1974-05-10 1974-05-10

Publications (1)

Publication Number Publication Date
IT1037860B true IT1037860B (it) 1979-11-20

Family

ID=4309057

Family Applications (1)

Application Number Title Priority Date Filing Date
IT23022/75A IT1037860B (it) 1974-05-10 1975-05-06 Pezzo sagomato di perforazione in materiale sintetico saldabile

Country Status (11)

Country Link
US (1) US3987276A (it)
JP (2) JPS50158670A (it)
BR (1) BR7502881A (it)
CA (1) CA1015796A (it)
CH (1) CH570577A5 (it)
DE (2) DE2514827A1 (it)
FR (1) FR2280018A1 (it)
GB (1) GB1491760A (it)
IT (1) IT1037860B (it)
NL (1) NL7505366A (it)
SE (1) SE402814B (it)

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH606895A5 (it) * 1975-12-18 1978-11-15 Geberit Ag
DE2760064C2 (de) * 1976-03-22 1983-09-01 Werner 4614 Hägendorf Sturm Schweißmuffe aus thermoplastischem Material
FR2353381A1 (fr) * 1976-06-03 1977-12-30 Pont A Mousson Procede d'assemblage par soudure de tubes plastiques et raccord pour un tel assemblage
CH622870A5 (it) * 1977-06-03 1981-04-30 Werner Sturm
EP0035750B1 (de) * 1980-03-10 1984-02-08 Georg Fischer Aktiengesellschaft Schweissverbindung für Kunststoffrohre
US4470193A (en) * 1980-08-22 1984-09-11 Esdan Pty. Ltd. Method of manufacture of electric fusion pipe fittings
FR2519578A1 (fr) * 1981-07-01 1983-07-18 Sam Innovation Tech Dispositif en matiere plastique pour realiser une perforation dans un element sous-jacent en matiere plastique, procede de fabrication d'un tel dispositif et sa mise en oeuvre pour realiser des derivations de canalisations
CH652473A5 (de) * 1981-10-02 1985-11-15 Fischer Ag Georg Schweissverbindung fuer kunststoffrohre.
FR2516439A1 (fr) * 1981-11-13 1983-05-20 Armosig Procede de soudage electrique de pieces en matiere plastique, en particulier pour canalisations de fluides et manchons de raccordement pour de telles canalisations
CH655374A5 (de) * 1982-04-29 1986-04-15 Fischer Ag Georg Anschluss-formstueck.
AU569278B2 (en) * 1983-03-09 1988-01-28 Rutland Plastics Ltd. Weldable thermoplastic pipe fitting
US4921648A (en) * 1983-04-02 1990-05-01 Raychem Corporation Method of joining an article comprising a conductive polymer composition to a polymeric substrate
US4695712A (en) * 1983-06-27 1987-09-22 Metcal, Inc. Flexible autoregulating heater with a latching mechanism
US5030487A (en) * 1984-04-04 1991-07-09 Raychem Corporation Heat recoverable article comprising conductive polymer compositions
ATE32132T1 (de) * 1984-08-08 1988-02-15 Fischer Ag Georg Anbohrformstueck aus schweissbarem kunstoff.
EP0170845B1 (de) * 1984-08-08 1988-08-31 Georg Fischer Aktiengesellschaft Anbohrformstück zum Anschluss einer Abzweigleitung
EP0171450A1 (de) * 1984-08-14 1986-02-19 Österreichische Salen-Kunststoffwerk Gesellschaft m.b.H. Rohrverbindung für Kunststoffrohre und Verfahren zur Herstellung
GB8502440D0 (en) * 1985-01-31 1985-03-06 Fusion Plastics Ltd Clamping device
GB2189737A (en) * 1986-04-23 1987-11-04 Du Pont Heat weldable pipe fittings
GB2194749A (en) * 1986-09-09 1988-03-16 Du Pont Method of manufacturing heat-weldable thermoplastic fittings
ATE68405T1 (de) * 1987-02-24 1991-11-15 Raychem Corp Verfahren zur verbindung von gegenstaenden.
US5286952A (en) * 1987-06-11 1994-02-15 Raychem Corporation Methods and devices which make use of conductive polymers to join articles
US4938820A (en) * 1987-06-11 1990-07-03 Raychem Corporation Joining of sheets
US4852914A (en) * 1987-06-19 1989-08-01 Milfuse Systems, Inc. Plastic pipeline having rapidly fusible joints and method of making same
US4894521A (en) * 1988-11-21 1990-01-16 Central Plastics Company Electric heating element for fusing thermoplastic materials
DE3911633A1 (de) * 1989-04-10 1990-10-11 Armin Dommer Heizvorrichtung fuer eine schweissvorrichtung
US5252157A (en) * 1989-05-01 1993-10-12 Central Plastics Company Electrothermal fusion of large diameter pipes by electric heating wire wrapping and sleeve connector
US5184850A (en) * 1989-07-07 1993-02-09 Georg Fischer Ag Method of connecting pipes of plastics material of a double pipe system and a pipe connection made by the method
CH682690A5 (de) * 1989-11-03 1993-10-29 Geberit Ag Verbindungsstück.
DE3939570C2 (de) * 1989-11-30 1998-03-26 Immanuel Jeschke Anbohrschelle für Kunststoffrohre
US5321233A (en) * 1992-09-15 1994-06-14 Northern Illinois Gas Electrofusion fitting and sealing method for distribution line
DE4319292A1 (de) * 1993-02-13 1994-08-18 Rheinauer Masch Armaturen Verfahren und Anschlußvorrichtung zum Anschließen einer Abzweigleitung an eine fluidführende Hauptleitung
JP2539754B2 (ja) * 1993-10-27 1996-10-02 東亜高級継手バルブ製造株式会社 プラスチック製分岐管継手
CH687640A5 (de) * 1994-04-29 1997-01-15 Fischer Georg Rohrleitung Verbindungsformteil fuer Abzweiganschluesse bei einer Rohrleitung.
US5639394A (en) * 1995-01-31 1997-06-17 Kerotest Manufacturing Corp. Electrofusion formed valve assembly
EP1027553B1 (de) * 1997-11-03 2002-02-27 DA-Kunststoff GmbH Anschweissbare schelle für ein aus thermisch schweissfähigem material bestehendes leitungsrohr
JP4326158B2 (ja) * 2001-02-08 2009-09-02 三井化学産資株式会社 電気融着サドル系継手
FR2868007A1 (fr) * 2004-03-25 2005-09-30 Innoge Pe Ind Sam Sa Monegasqu Insert electrosoudable, procede d'obtention d'un tel insert et raccord incorporant un tel insert
DE102004020758A1 (de) * 2004-04-27 2005-11-17 Gwc Gas-Water-Valves-Components Gmbh Schelle aus thermisch schweißfähigem Material
US8418565B2 (en) * 2006-06-29 2013-04-16 Krohne Ag Heated pipe connecting device for installation of a flow meter
US9032729B2 (en) * 2008-12-15 2015-05-19 Jens Ole Sorensen Heated-air conduit for energy conversion systems and methods
CN106151742A (zh) * 2015-03-31 2016-11-23 池州恒生科技发展有限公司 一种三通分支装置
US20190249803A1 (en) * 2018-02-12 2019-08-15 David Franklin Apparatus for securing a pair of pipes
IT201800005775A1 (it) * 2018-05-28 2019-11-28 Raccordo di derivazione elettrosaldabile per tubi ad elevato diametro e relativo metodo di saldatura.
CN209781987U (zh) * 2018-08-28 2019-12-13 雅各布·弗里德里希 用于水管分流的夹紧设备、锁定器件、固定器件、密封件固定件
DE102020215851A1 (de) * 2020-12-14 2022-06-15 Conti Tech Techno-Chemie Gmbh Kunststoffrohr-T-Verbindung mit mindestens einer ersten und mindestens einer weiteren Kunststoffrohrleitung
CN112848251A (zh) * 2021-01-26 2021-05-28 宜宾学院 一种管道胀接辅助器

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DE1055305B (de) * 1954-05-26 1959-04-16 Ramsay Olaf St George Verbindungsteil aus thermoplastischem Material in Form einer Muffe, eines T-Stueckesoder L-Stueckes
US3094452A (en) * 1955-07-23 1963-06-18 Sued West Chemie Gmbh Method of making interlocked welded connections between shaped thermoplastic articles
US3061503A (en) * 1956-10-29 1962-10-30 Dow Chemical Co Method of joining pipes by means of an electrically heatable sleeve
NL236188A (it) * 1958-02-17
US3240226A (en) * 1962-05-31 1966-03-15 Mid Atlantic Plastics Corp Self-tapping service valve fitting
US3406055A (en) * 1965-05-20 1968-10-15 Cabot Corp Welding method for cured polymeric compositions
JPS457826Y1 (it) * 1965-08-12 1970-04-14
JPS455585Y1 (it) * 1966-07-11 1970-03-17
GB1223128A (en) * 1967-11-15 1971-02-24 David Frederick Cooper Pipe joints
FR2087117A5 (it) * 1970-05-05 1971-12-31 Salomon & Fils F
US3743566A (en) * 1970-09-24 1973-07-03 Phillips Petroleum Co Apparatus for joining a plastic fitting to a plastic pipe
NL161565C (nl) * 1973-09-14 1980-02-15 Polva Nederland Bv Aftakking van een hoofdleiding uit kunststof naar een dienstleiding.

Also Published As

Publication number Publication date
BR7502881A (pt) 1976-03-16
GB1491760A (en) 1977-11-16
US3987276A (en) 1976-10-19
SE402814B (sv) 1978-07-17
DE7510654U (de) 1978-06-22
JPS50158670A (it) 1975-12-22
DE2514827A1 (de) 1975-11-13
CH570577A5 (it) 1975-12-15
FR2280018A1 (fr) 1976-02-20
NL7505366A (nl) 1975-11-12
FR2280018B1 (it) 1980-08-14
SE7505393L (sv) 1975-11-11
JPS55134222U (it) 1980-09-24
JPS61189Y2 (it) 1986-01-07
CA1015796A (en) 1977-08-16

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