PT78663B - Device which can be enlarged with a controlled expansion - Google Patents

Device which can be enlarged with a controlled expansion

Info

Publication number
PT78663B
PT78663B PT78663A PT7866384A PT78663B PT 78663 B PT78663 B PT 78663B PT 78663 A PT78663 A PT 78663A PT 7866384 A PT7866384 A PT 7866384A PT 78663 B PT78663 B PT 78663B
Authority
PT
Portugal
Prior art keywords
enlarged
controlled expansion
expansion
controlled
Prior art date
Application number
PT78663A
Other languages
English (en)
Portuguese (pt)
Other versions
PT78663A (en
Original Assignee
Scarafoni Verio
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 Scarafoni Verio filed Critical Scarafoni Verio
Publication of PT78663A publication Critical patent/PT78663A/pt
Publication of PT78663B publication Critical patent/PT78663B/pt

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)
PT78663A 1983-05-30 1984-05-29 Device which can be enlarged with a controlled expansion PT78663B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8304821A IT1208962B (it) 1983-05-30 1983-05-30 Elemento espandibile a dilatazione controllata ed agente a mezzo di fluidi in pressione.

Publications (2)

Publication Number Publication Date
PT78663A PT78663A (en) 1984-06-01
PT78663B true PT78663B (en) 1986-08-08

Family

ID=11114336

Family Applications (1)

Application Number Title Priority Date Filing Date
PT78663A PT78663B (en) 1983-05-30 1984-05-29 Device which can be enlarged with a controlled expansion

Country Status (5)

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

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 (ja) * 1989-08-10 1991-03-27 Natl House Ind Co Ltd コンクリート部材の製造方法
ES2061359B1 (es) * 1992-07-02 1997-04-01 Lopez Victor Pena Molde recuperable para la construccion "in situ" de nichos de hormigon.

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE419216A (de) *
DE714213C (de) * 1936-03-06 1941-11-24 Zeppelin Wohlfahrt G M B H Ausweitbarer Kern fuer die Herstellung von Hohlformsteinen
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 (fr) * 1955-01-31 1956-08-30 Noyau expansible pour la fabrication de produits de forme bien définie, à partir de matières pulvérulentes
US3021900A (en) * 1957-10-10 1962-02-20 Marchioli Giorgio Apparatus for manufacturing pipes from plastic materials
NO130101B (de) * 1968-11-13 1974-07-08 Fulguritwerke Seelze U Oesterh
DE2453706C2 (de) * 1974-11-13 1982-08-26 WKR Patentverwertungsgesellschaft mbH, 6833 Waghäusel Einstückige Kernschalung zum Herstellen von großflächigen Bauteilen mit Hohlräumen großer Breite

Also Published As

Publication number Publication date
IT8304821A0 (it) 1983-05-30
JPS606410A (ja) 1985-01-14
EP0127593A2 (de) 1984-12-05
IT1208962B (it) 1989-07-10
ES8504005A1 (es) 1985-04-16
PT78663A (en) 1984-06-01
ES532898A0 (es) 1985-04-16
EP0127593A3 (de) 1985-08-07

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