GB1471507A - Moulding pipes - Google Patents

Moulding pipes

Info

Publication number
GB1471507A
GB1471507A GB1645875A GB1645875A GB1471507A GB 1471507 A GB1471507 A GB 1471507A GB 1645875 A GB1645875 A GB 1645875A GB 1645875 A GB1645875 A GB 1645875A GB 1471507 A GB1471507 A GB 1471507A
Authority
GB
United Kingdom
Prior art keywords
moulded
pipe
filled
ribbed
reinforced
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
GB1645875A
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.)
DURO PENTA HOLDINGS Pty Ltd
Original Assignee
DURO PENTA HOLDINGS Pty 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 DURO PENTA HOLDINGS Pty Ltd filed Critical DURO PENTA HOLDINGS Pty Ltd
Publication of GB1471507A publication Critical patent/GB1471507A/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
    • B29C45/0003—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor of successively moulded portions rigidly joined 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
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/261—Moulds having tubular mould cavities

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

1471507 Injection moulding ribbed pipes DURO PENTA HOLDINGS (PTY) Ltd 21 April 1975 [4 June 1974] 16458/75 Addition to 1402395 Heading B5A [Also in Division F2] A ribbed pipe is moulded as described in the main patent, but is characterized in that the pipe is moulded from foamed and/or filled and reinforced thermoplastics material. Filled low or high density polyethylene, polypropylene or polystyrene is used to form a closed cell foam reinforced with metal members and glass fibres. The aluminium mould 5 includes an annular copper-berillium heating strip 16.
GB1645875A 1974-06-04 1975-04-21 Moulding pipes Expired GB1471507A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA00743527A ZA743527B (en) 1974-06-04 1974-06-04 Improvements in or relating to pipes

Publications (1)

Publication Number Publication Date
GB1471507A true GB1471507A (en) 1977-04-27

Family

ID=25567756

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1645875A Expired GB1471507A (en) 1974-06-04 1975-04-21 Moulding pipes

Country Status (7)

Country Link
JP (1) JPS51562A (en)
CH (1) CH574808A5 (en)
FR (1) FR2273640A2 (en)
GB (1) GB1471507A (en)
IT (1) IT1050296B (en)
NL (1) NL7506582A (en)
ZA (1) ZA743527B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA775528B (en) * 1977-09-15 1979-04-25 Aeci Ltd Plastics pipes and their manufacture
JPS624782A (en) * 1985-06-29 1987-01-10 Nippon Steel Chem Co Ltd Method of controlling coke oven reaction
JPS624783A (en) * 1985-06-29 1987-01-10 Nippon Steel Chem Co Ltd Carbonization of coal
US4818203A (en) * 1988-06-02 1989-04-04 The Goodyear Tire & Rubber Company System for injection molding elongated bodies
US4826416A (en) * 1988-06-02 1989-05-02 The Goodyear Tire & Rubber Company System for injection molding tire treads

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5332382B2 (en) * 1973-04-26 1978-09-07

Also Published As

Publication number Publication date
JPS51562A (en) 1976-01-06
FR2273640A2 (en) 1976-01-02
CH574808A5 (en) 1976-04-30
IT1050296B (en) 1981-03-10
NL7506582A (en) 1975-12-08
ZA743527B (en) 1975-06-25
AU8141875A (en) 1976-11-25
FR2273640B2 (en) 1978-04-28

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee