EP0429389A3 - Process of and apparatus for forming concrete pipe with step - Google Patents

Process of and apparatus for forming concrete pipe with step Download PDF

Info

Publication number
EP0429389A3
EP0429389A3 EP19900610069 EP90610069A EP0429389A3 EP 0429389 A3 EP0429389 A3 EP 0429389A3 EP 19900610069 EP19900610069 EP 19900610069 EP 90610069 A EP90610069 A EP 90610069A EP 0429389 A3 EP0429389 A3 EP 0429389A3
Authority
EP
European Patent Office
Prior art keywords
concrete pipe
forming concrete
forming
pipe
concrete
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.)
Ceased
Application number
EP19900610069
Other versions
EP0429389A2 (en
Inventor
Shigeo Kodama
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.)
SAKURAI KENZAI SANGYO KK
Original Assignee
SAKURAI KENZAI SANGYO KK
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 JP30099889A external-priority patent/JPH0620739B2/en
Priority claimed from JP18080090A external-priority patent/JPH0467909A/en
Application filed by SAKURAI KENZAI SANGYO KK filed Critical SAKURAI KENZAI SANGYO KK
Publication of EP0429389A2 publication Critical patent/EP0429389A2/en
Publication of EP0429389A3 publication Critical patent/EP0429389A3/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
    • B28B21/566—Climbing elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/90—Methods or apparatus for demoulding or discharging after shaping

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
EP19900610069 1989-11-20 1990-11-20 Process of and apparatus for forming concrete pipe with step Ceased EP0429389A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP30099889A JPH0620739B2 (en) 1989-11-20 1989-11-20 Formwork for concrete pipes
JP300998/89 1989-11-20
JP18080090A JPH0467909A (en) 1990-07-09 1990-07-09 Molding method for concrete pipe fitted with step metal jig
JP180800/90 1990-07-09

Publications (2)

Publication Number Publication Date
EP0429389A2 EP0429389A2 (en) 1991-05-29
EP0429389A3 true EP0429389A3 (en) 1991-11-06

Family

ID=26500193

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900610069 Ceased EP0429389A3 (en) 1989-11-20 1990-11-20 Process of and apparatus for forming concrete pipe with step

Country Status (1)

Country Link
EP (1) EP0429389A3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK43992D0 (en) * 1992-04-01 1992-04-01 Pedershaab As PREPARING EQUIPMENT FOR CONCRETE OF CASTING BROWN OR TAPES WITH STEPS
CN101125726B (en) * 2006-08-16 2011-05-04 鸿富锦精密工业（深圳）有限公司 Molding die
CN107756619B (en) * 2017-11-20 2023-04-07 宁波中淳高科股份有限公司 Single-wall steel mould suitable for prestressed concrete special-shaped pile

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3142882A (en) * 1962-02-05 1964-08-04 Metropolitan Welding Fabricato Mold for concrete structures
EP0160170A1 (en) * 1984-02-28 1985-11-06 Georg Prinzing GmbH & Co. KG Betonformen- und Maschinenfabrik Method and device for manufacturing tubbing rings or the like

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3142882A (en) * 1962-02-05 1964-08-04 Metropolitan Welding Fabricato Mold for concrete structures
EP0160170A1 (en) * 1984-02-28 1985-11-06 Georg Prinzing GmbH & Co. KG Betonformen- und Maschinenfabrik Method and device for manufacturing tubbing rings or the like

Also Published As

Publication number Publication date
EP0429389A2 (en) 1991-05-29

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