GB2259270B - Plastics piping - Google Patents

Plastics piping

Info

Publication number
GB2259270B
GB2259270B GB9216137A GB9216137A GB2259270B GB 2259270 B GB2259270 B GB 2259270B GB 9216137 A GB9216137 A GB 9216137A GB 9216137 A GB9216137 A GB 9216137A GB 2259270 B GB2259270 B GB 2259270B
Authority
GB
United Kingdom
Prior art keywords
plastics piping
piping
plastics
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 - Fee Related
Application number
GB9216137A
Other versions
GB9216137D0 (en
GB2259270A (en
Inventor
John Stafford Rowland
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.)
Extrudit Ltd
Original Assignee
Extrudit 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
Priority claimed from GB919119127A external-priority patent/GB9119127D0/en
Application filed by Extrudit Ltd filed Critical Extrudit Ltd
Priority to GB9216137A priority Critical patent/GB2259270B/en
Publication of GB9216137D0 publication Critical patent/GB9216137D0/en
Publication of GB2259270A publication Critical patent/GB2259270A/en
Application granted granted Critical
Publication of GB2259270B publication Critical patent/GB2259270B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
GB9216137A 1991-09-07 1992-07-29 Plastics piping Expired - Fee Related GB2259270B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9216137A GB2259270B (en) 1991-09-07 1992-07-29 Plastics piping

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919119127A GB9119127D0 (en) 1991-09-07 1991-09-07 Plastics piping
GB9216137A GB2259270B (en) 1991-09-07 1992-07-29 Plastics piping

Publications (3)

Publication Number Publication Date
GB9216137D0 GB9216137D0 (en) 1992-09-09
GB2259270A GB2259270A (en) 1993-03-10
GB2259270B true GB2259270B (en) 1995-08-16

Family

ID=26299510

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9216137A Expired - Fee Related GB2259270B (en) 1991-09-07 1992-07-29 Plastics piping

Country Status (1)

Country Link
GB (1) GB2259270B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI20020280A (en) 2002-02-12 2003-08-13 Uponor Innovation Ab Piping element and method and equipment for making it

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1501145A (en) * 1974-04-27 1978-02-15 Wieland Werke Ag Process and equipment for the production of a metal tube coated with foamed plastics
GB1578318A (en) * 1977-03-25 1980-11-05 Kabel Metallwerke Ghh Process for the production of cellular polymeric materials
GB2063147A (en) * 1979-11-09 1981-06-03 Wieland Werke Ag Process and apparatus for the manufacture of a heat-insulated metal pipe
EP0231976A2 (en) * 1986-01-30 1987-08-12 Viradan A/S A method of providing cylindrical workpieces with a coating of a highly viscid material and a cross head extruder for use therewith
EP0246890A1 (en) * 1986-05-21 1987-11-25 Robert Ernest Reeves Conduit assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1501145A (en) * 1974-04-27 1978-02-15 Wieland Werke Ag Process and equipment for the production of a metal tube coated with foamed plastics
GB1578318A (en) * 1977-03-25 1980-11-05 Kabel Metallwerke Ghh Process for the production of cellular polymeric materials
GB2063147A (en) * 1979-11-09 1981-06-03 Wieland Werke Ag Process and apparatus for the manufacture of a heat-insulated metal pipe
EP0231976A2 (en) * 1986-01-30 1987-08-12 Viradan A/S A method of providing cylindrical workpieces with a coating of a highly viscid material and a cross head extruder for use therewith
EP0246890A1 (en) * 1986-05-21 1987-11-25 Robert Ernest Reeves Conduit assembly

Also Published As

Publication number Publication date
GB9216137D0 (en) 1992-09-09
GB2259270A (en) 1993-03-10

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030729