GB1412651A - Plastics pipes - Google Patents

Plastics pipes

Info

Publication number
GB1412651A
GB1412651A GB4803072A GB4803072A GB1412651A GB 1412651 A GB1412651 A GB 1412651A GB 4803072 A GB4803072 A GB 4803072A GB 4803072 A GB4803072 A GB 4803072A GB 1412651 A GB1412651 A GB 1412651A
Authority
GB
United Kingdom
Prior art keywords
separating means
corrugations
inner tube
oct
pressure medium
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
GB4803072A
Other languages
English (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.)
Industriele Onderneming Wavin NV
Wavin BV
Original Assignee
Industriele Onderneming Wavin NV
Wavin BV
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 Industriele Onderneming Wavin NV, Wavin BV filed Critical Industriele Onderneming Wavin NV
Publication of GB1412651A publication Critical patent/GB1412651A/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
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/127—Rigid pipes of plastics with or without reinforcement the walls consisting of a single layer
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/0015—Making articles of indefinite length, e.g. corrugated tubes
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/0015—Making articles of indefinite length, e.g. corrugated tubes
    • B29C49/0021—Making articles of indefinite length, e.g. corrugated tubes using moulds or mould parts movable in a closed path, e.g. mounted on movable endless supports
    • 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
    • B29L2023/00—Tubular articles
    • B29L2023/003—Tubular articles having irregular or rough surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
GB4803072A 1971-10-22 1972-10-18 Plastics pipes Expired GB1412651A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7114597A NL7114597A (enrdf_load_stackoverflow) 1971-10-22 1971-10-22

Publications (1)

Publication Number Publication Date
GB1412651A true GB1412651A (en) 1975-11-05

Family

ID=19814319

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4803072A Expired GB1412651A (en) 1971-10-22 1972-10-18 Plastics pipes

Country Status (2)

Country Link
GB (1) GB1412651A (enrdf_load_stackoverflow)
NL (1) NL7114597A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2362715A1 (fr) * 1976-08-24 1978-03-24 Hegler Wilhelm Procede de fabrication de tubes en matiere plastique a double paroi et tube realise selon ce procede
WO2004094888A1 (de) * 2003-04-24 2004-11-04 Drossbach Gmbh & Co. Kg Doppelwand-wellrohr

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2362715A1 (fr) * 1976-08-24 1978-03-24 Hegler Wilhelm Procede de fabrication de tubes en matiere plastique a double paroi et tube realise selon ce procede
WO2004094888A1 (de) * 2003-04-24 2004-11-04 Drossbach Gmbh & Co. Kg Doppelwand-wellrohr

Also Published As

Publication number Publication date
NL7114597A (enrdf_load_stackoverflow) 1973-04-25

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees