IT8304821A0 - EXPANDABLE ELEMENT WITH CONTROLLED EXPANSION AND ACTING BY MEANS OF PRESSURE FLUIDS. - Google Patents

EXPANDABLE ELEMENT WITH CONTROLLED EXPANSION AND ACTING BY MEANS OF PRESSURE FLUIDS.

Info

Publication number
IT8304821A0
IT8304821A0 IT8304821A IT482183A IT8304821A0 IT 8304821 A0 IT8304821 A0 IT 8304821A0 IT 8304821 A IT8304821 A IT 8304821A IT 482183 A IT482183 A IT 482183A IT 8304821 A0 IT8304821 A0 IT 8304821A0
Authority
IT
Italy
Prior art keywords
acting
expandable element
controlled expansion
pressure fluids
fluids
Prior art date
Application number
IT8304821A
Other languages
Italian (it)
Other versions
IT1208962B (en
Inventor
Verio Scarafoni
Original Assignee
Verio Scarafoni
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 Verio Scarafoni filed Critical Verio Scarafoni
Priority to IT8304821A priority Critical patent/IT1208962B/en
Publication of IT8304821A0 publication Critical patent/IT8304821A0/en
Priority to EP84830157A priority patent/EP0127593A3/en
Priority to ES532898A priority patent/ES8504005A1/en
Priority to PT78663A priority patent/PT78663B/en
Priority to JP59107658A priority patent/JPS606410A/en
Application granted granted Critical
Publication of IT1208962B publication Critical patent/IT1208962B/en

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)
  • Springs (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Reinforcement Elements For Buildings (AREA)
IT8304821A 1983-05-30 1983-05-30 EXPANDABLE ELEMENT WITH CONTROLLED EXPANSION AND AGENT BY MEANS OF PRESSURIZED FLUIDS. IT1208962B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IT8304821A IT1208962B (en) 1983-05-30 1983-05-30 EXPANDABLE ELEMENT WITH CONTROLLED EXPANSION AND AGENT BY MEANS OF PRESSURIZED FLUIDS.
EP84830157A EP0127593A3 (en) 1983-05-30 1984-05-21 Device which can be enlarged with a controlled expansion
ES532898A ES8504005A1 (en) 1983-05-30 1984-05-29 Device which can be enlarged with a controlled expansion.
PT78663A PT78663B (en) 1983-05-30 1984-05-29 Device which can be enlarged with a controlled expansion
JP59107658A JPS606410A (en) 1983-05-30 1984-05-29 Molding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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
IT8304821A0 true IT8304821A0 (en) 1983-05-30
IT1208962B IT1208962B (en) 1989-07-10

Family

ID=11114336

Family Applications (1)

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

Country Status (5)

Country Link
EP (1) EP0127593A3 (en)
JP (1) JPS606410A (en)
ES (1) ES8504005A1 (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.

Family Cites Families (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
CH504290A (en) * 1968-11-13 1971-03-15 Seelze & Eichriede Fulgurit Method and device for the cross-sectional deformation of seamless asbestos-cement pipes
DE2453706C2 (en) * 1974-11-13 1982-08-26 WKR Patentverwertungsgesellschaft mbH, 6833 Waghäusel One-piece core formwork for the production of large-area components with large-width cavities

Also Published As

Publication number Publication date
PT78663A (en) 1984-06-01
IT1208962B (en) 1989-07-10
ES532898A0 (en) 1985-04-16
ES8504005A1 (en) 1985-04-16
EP0127593A3 (en) 1985-08-07
PT78663B (en) 1986-08-08
JPS606410A (en) 1985-01-14
EP0127593A2 (en) 1984-12-05

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19980506