EP0127593A3 - Device which can be enlarged with a controlled expansion - Google Patents

Device which can be enlarged with a controlled expansion Download PDF

Info

Publication number
EP0127593A3
EP0127593A3 EP84830157A EP84830157A EP0127593A3 EP 0127593 A3 EP0127593 A3 EP 0127593A3 EP 84830157 A EP84830157 A EP 84830157A EP 84830157 A EP84830157 A EP 84830157A EP 0127593 A3 EP0127593 A3 EP 0127593A3
Authority
EP
European Patent Office
Prior art keywords
enlarged
controlled expansion
bearing structure
movable element
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.)
Withdrawn
Application number
EP84830157A
Other languages
German (de)
French (fr)
Other versions
EP0127593A2 (en
Inventor
Verio Scarafoni
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0127593A2 publication Critical patent/EP0127593A2/en
Publication of EP0127593A3 publication Critical patent/EP0127593A3/en
Withdrawn legal-status Critical Current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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/28—Cores; Mandrels
    • B28B7/30—Cores; Mandrels adjustable, collapsible, or expanding
    • 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
    • B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
    • B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
    • B28B21/18—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using expansible or retractable mould or core 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
    • B28B21/86—Cores
    • B28B21/88—Cores adjustable, collapsible or expansible

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Springs (AREA)

Abstract

This invention is embodied with a device (10) which can be enlarged with a controlled expansion and is suitable for carrying out a method for the moulding of concrete and which can process simple or reinforced concrete and comprises:
- impermeable, resilient sheath means (11) cooperating with at least one movable element (13-113), and
- a bearing structure (12),
at least one enlargeable element (14-114) being included between the bearing structure (12) of the device (10) and the movable element (13).
EP84830157A 1983-05-30 1984-05-21 Device which can be enlarged with a controlled expansion Withdrawn EP0127593A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT482183 1983-05-30
IT8304821A IT1208962B (en) 1983-05-30 1983-05-30 EXPANDABLE ELEMENT WITH CONTROLLED EXPANSION AND AGENT BY MEANS OF PRESSURIZED FLUIDS.

Publications (2)

Publication Number Publication Date
EP0127593A2 EP0127593A2 (en) 1984-12-05
EP0127593A3 true EP0127593A3 (en) 1985-08-07

Family

ID=11114336

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84830157A Withdrawn EP0127593A3 (en) 1983-05-30 1984-05-21 Device which can be enlarged with a controlled expansion

Country Status (5)

Country Link
EP (1) EP0127593A3 (en)
JP (1) JPS606410A (en)
ES (1) ES532898A0 (en)
IT (1) IT1208962B (en)
PT (1) PT78663B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ216568A (en) * 1985-06-18 1988-07-28 Graeme Reginald Hume Casting concrete pipes around expandable mandrel
JPH0371808A (en) * 1989-08-10 1991-03-27 Natl House Ind Co Ltd Manufacture of concrete member
ES2061359B1 (en) * 1992-07-02 1997-04-01 Lopez Victor Pena RECOVERABLE MOLD FOR THE CONSTRUCTION "IN SITU" OF CONCRETE NICHES.

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE419216A (en) *
US2170188A (en) * 1937-10-30 1939-08-22 Walter H Cobi Collapsible core
DE714213C (en) * 1936-03-06 1941-11-24 Zeppelin Wohlfahrt G M B H Expandable core for the production of hollow blocks
US2315634A (en) * 1941-06-23 1943-04-06 Harold C Mccall Expansible core mold
US2730783A (en) * 1950-10-12 1956-01-17 Lock Joint Pipe Co Apparatus for forming concrete pipes and other hollow bodies
FR1122008A (en) * 1955-01-31 1956-08-30 Expandable core for the production of well-defined products from powdery materials
US3021900A (en) * 1957-10-10 1962-02-20 Marchioli Giorgio Apparatus for manufacturing pipes from plastic materials
FR2023212A1 (en) * 1968-11-13 1970-08-07 Seelze & Eichriede Fulgurit
FR2291332A1 (en) * 1974-11-13 1976-06-11 Reymann Wolfgang Hollow building component core shuttering - dimensions adjustable by mechanismon internal supporting body

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE419216A (en) *
DE714213C (en) * 1936-03-06 1941-11-24 Zeppelin Wohlfahrt G M B H Expandable core for the production of hollow blocks
US2170188A (en) * 1937-10-30 1939-08-22 Walter H Cobi Collapsible core
US2315634A (en) * 1941-06-23 1943-04-06 Harold C Mccall Expansible core mold
US2730783A (en) * 1950-10-12 1956-01-17 Lock Joint Pipe Co Apparatus for forming concrete pipes and other hollow bodies
FR1122008A (en) * 1955-01-31 1956-08-30 Expandable core for the production of well-defined products from powdery materials
US3021900A (en) * 1957-10-10 1962-02-20 Marchioli Giorgio Apparatus for manufacturing pipes from plastic materials
FR2023212A1 (en) * 1968-11-13 1970-08-07 Seelze & Eichriede Fulgurit
FR2291332A1 (en) * 1974-11-13 1976-06-11 Reymann Wolfgang Hollow building component core shuttering - dimensions adjustable by mechanismon internal supporting body

Also Published As

Publication number Publication date
JPS606410A (en) 1985-01-14
EP0127593A2 (en) 1984-12-05
PT78663B (en) 1986-08-08
IT8304821A0 (en) 1983-05-30
PT78663A (en) 1984-06-01
IT1208962B (en) 1989-07-10
ES8504005A1 (en) 1985-04-16
ES532898A0 (en) 1985-04-16

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Effective date: 19860408