NO792871L - Ekspanderbar dor for anvendelse ved oppbygning av roer - Google Patents

Ekspanderbar dor for anvendelse ved oppbygning av roer

Info

Publication number
NO792871L
NO792871L NO792871A NO792871A NO792871L NO 792871 L NO792871 L NO 792871L NO 792871 A NO792871 A NO 792871A NO 792871 A NO792871 A NO 792871A NO 792871 L NO792871 L NO 792871L
Authority
NO
Norway
Prior art keywords
mandrel
sleeve
pipe
pipe sleeve
plastic
Prior art date
Application number
NO792871A
Other languages
English (en)
Norwegian (no)
Inventor
Stig Ove Mauritz Ekstroem
Original Assignee
Ekstroem & Co H A B
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 Ekstroem & Co H A B filed Critical Ekstroem & Co H A B
Publication of NO792871L publication Critical patent/NO792871L/no

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/48—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
    • B29C33/485—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling cores or mandrels
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/80—Component parts, details or accessories; Auxiliary operations
    • B29C53/82—Cores or mandrels
    • B29C53/821—Mandrels especially adapted for winding and joining
    • B29C53/824—Mandrels especially adapted for winding and joining collapsible, e.g. elastic or inflatable; with removable parts, e.g. for regular shaped, straight tubular articles
    • 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
    • B29L2023/22—Tubes or pipes, i.e. rigid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Moulding By Coating Moulds (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
NO792871A 1978-09-06 1979-09-05 Ekspanderbar dor for anvendelse ved oppbygning av roer NO792871L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7809371A SE413477B (sv) 1978-09-06 1978-09-06 Expanderbar dorn for anvendning vid uppbyggnad av ror

Publications (1)

Publication Number Publication Date
NO792871L true NO792871L (no) 1980-03-07

Family

ID=20335743

Family Applications (1)

Application Number Title Priority Date Filing Date
NO792871A NO792871L (no) 1978-09-06 1979-09-05 Ekspanderbar dor for anvendelse ved oppbygning av roer

Country Status (8)

Country Link
JP (1) JPS5546936A (de)
DE (1) DE2934360A1 (de)
DK (1) DK361479A (de)
FI (1) FI792756A (de)
GB (1) GB2031330B (de)
NL (1) NL7906548A (de)
NO (1) NO792871L (de)
SE (1) SE413477B (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE429626B (sv) * 1982-01-20 1983-09-19 Tetra Pak Dev Sett att medelst krympformning framstella forpackningsbehallare jemte anordning for settets utforande
JPS6012187A (ja) * 1983-07-02 1985-01-22 株式会社デンソー 洗浄方法及び装置
JPS60137481A (ja) * 1983-12-25 1985-07-22 株式会社デンソー 洗浄方法及び装置
JPS60137524U (ja) * 1984-02-24 1985-09-12 株式会社クボタ 樹脂管製造用芯金装置
JPS60137523U (ja) * 1984-02-24 1985-09-12 株式会社クボタ 樹脂管製造用芯金装置
FR2568356B1 (fr) * 1984-07-24 1986-12-26 Raffinage Cie Francaise Procede de fabrication d'un chauffe-eau et chauffe-eau ainsi obtenu
JPS62235028A (ja) * 1986-03-26 1987-10-15 サッポロビール株式会社 帯状包装資材の連続オゾン殺菌装置
GB0811967D0 (en) * 2008-06-30 2008-07-30 Bhp Billiton Petroleum Pty Ltd Improvements relating to hose
EP2368685B1 (de) * 2010-03-25 2014-10-29 Siemens Aktiengesellschaft Aufblasbarer Dorn und Verfahren zur Herstellung eines Verbundkunststoffes mittels eines solchen Dornes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3988103A (en) * 1975-03-24 1976-10-26 Tre Corporation Collapsible mandrel for making fiber tubes
US4087502A (en) * 1976-03-24 1978-05-02 Tre Corporation Method of making a collapsible foam mandrel

Also Published As

Publication number Publication date
DK361479A (da) 1980-03-07
NL7906548A (nl) 1980-03-10
DE2934360A1 (de) 1980-03-27
JPS5546936A (en) 1980-04-02
SE7809371L (sv) 1980-03-07
FI792756A (fi) 1980-03-07
SE413477B (sv) 1980-06-02
GB2031330A (en) 1980-04-23
GB2031330B (en) 1982-09-15

Similar Documents

Publication Publication Date Title
NO792871L (no) Ekspanderbar dor for anvendelse ved oppbygning av roer
NO143512B (no) Fremgangsmaate og apparat til aa maale tettheten av grunnformasjoner som gjennomtrenges av borehull
IS1471B6 (is) Aðferð og búnaður til röraframleiðslu
US3180130A (en) Mandrel for preventing wrinkling of pipes during bending thereof
US2425800A (en) Cable for reinforcing pipe during bending operation
ES530615A0 (es) Instalacion para curvar tubos
FR2365384A1 (fr) Procede et machine de fabrication de demi-coquille en tole
DK0430117T3 (da) Fremgangsmåde og organ til positionering og fastholdelse af et rør i en eksisterende rørledning
GB1070556A (en) Improved method and apparatus for forming a tubular extension on a length of moldable material
ES467149A1 (es) Aparato para formar ensanchamientos en tubos.
SU458356A1 (ru) Способ волочени ступенчатых труб
JPS5436384A (en) Forming of end part of pipe
JPS5719409A (en) Cut-off device in high pressure water gate
ES456798A1 (es) Procedimiento y dispositivo para secar las paredes interio- res de tubos.
ES435127A3 (es) Procedimiento para la fabricacion de tubos con doble pared.
ES383100A1 (es) Aparato para fabricar un cilindro flexible.
ES328899A1 (es) Procedimiento de aislamiento termico de tuberias.
SU99866A1 (ru) Способ изготовлени напорных железобетонных труб
NO131009B (de)
GB842754A (en) Improvements in or relating to the production of reinforced pipes or ducts and a mandrel for use in the production thereof
ES380207A3 (es) Sistema para la obtencion de perforaciones en tubos de dre-naje.
ES392391A3 (es) Procedimiento y dispositivo para la fijacion de manguitos de metal en varillas de armadura nervados.
ES274286A1 (es) Un procedimiento para la fabricaciën de tubos
ES237312A3 (es) Procedimiento y dispositivo para la fabricaciën de tubos de chapa metalica.
ES233794A3 (es) Procedimiento para la fabricación de tubos continuos de banda continua en helicoide