FR2291332B3 - - Google Patents

Info

Publication number
FR2291332B3
FR2291332B3 FR7534467A FR7534467A FR2291332B3 FR 2291332 B3 FR2291332 B3 FR 2291332B3 FR 7534467 A FR7534467 A FR 7534467A FR 7534467 A FR7534467 A FR 7534467A FR 2291332 B3 FR2291332 B3 FR 2291332B3
Authority
FR
France
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.)
Expired
Application number
FR7534467A
Other languages
French (fr)
Other versions
FR2291332A1 (en
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 FR2291332A1 publication Critical patent/FR2291332A1/en
Application granted granted Critical
Publication of FR2291332B3 publication Critical patent/FR2291332B3/fr
Granted 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
FR7534467A 1974-11-13 1975-11-12 Hollow building component core shuttering - dimensions adjustable by mechanismon internal supporting body Granted FR2291332A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742453706 DE2453706C2 (en) 1974-11-13 1974-11-13 One-piece core formwork for the production of large-area components with large-width cavities

Publications (2)

Publication Number Publication Date
FR2291332A1 FR2291332A1 (en) 1976-06-11
FR2291332B3 true FR2291332B3 (en) 1979-06-29

Family

ID=5930665

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7534467A Granted FR2291332A1 (en) 1974-11-13 1975-11-12 Hollow building component core shuttering - dimensions adjustable by mechanismon internal supporting body

Country Status (5)

Country Link
AT (1) AT349957B (en)
BE (1) BE835559A (en)
DE (1) DE2453706C2 (en)
FR (1) FR2291332A1 (en)
NL (1) NL7513155A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2723113C2 (en) * 1977-05-23 1984-07-12 WKR Patentverwertungsgesellschaft mbH, 6833 Waghäusel Process for the production of concrete structural elements with cavities by means of one or more core formwork installed in an outer formwork
DE3235802C2 (en) * 1982-09-28 1985-06-20 WKR Patentverwertungsgesellschaft mbH, 6833 Waghäusel Core formwork for concrete components
IT1208962B (en) * 1983-05-30 1989-07-10 Verio Scarafoni EXPANDABLE ELEMENT WITH CONTROLLED EXPANSION AND AGENT BY MEANS OF PRESSURIZED FLUIDS.
FI123542B (en) * 2005-01-07 2013-06-28 Elematic Oy Ab Method, apparatus and forming part of a product for sliding molding of a concrete product

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE622845A (en) *
US2394261A (en) * 1944-11-08 1946-02-05 Vern E Reichard Core mold for walls
US2472068A (en) * 1946-05-22 1949-06-07 Farley Kathryn Expansible core for use in molding hollow concrete walls
FR1257624A (en) * 1954-09-07 1961-04-07 Process for manufacturing hollow monolithic concrete elements for floors, and construction elements obtained by this process
CH437735A (en) * 1966-03-04 1967-06-15 Nayagam Suzanne Formwork device
FR1479379A (en) * 1966-03-17 1967-05-05 T U J O Sa Improvements to recoverable formwork

Also Published As

Publication number Publication date
FR2291332A1 (en) 1976-06-11
DE2453706A1 (en) 1976-05-20
DE2453706C2 (en) 1982-08-26
NL7513155A (en) 1976-05-17
BE835559A (en) 1976-03-01
ATA994874A (en) 1978-09-15
AT349957B (en) 1979-05-10

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Legal Events

Date Code Title Description
ST Notification of lapse
RC Opposition against decision of lapse
DA Annulment of decision of lapse
AR Application made for restoration
ST Notification of lapse
BR Restoration of rights