ATA994874A - EXTENSIBLE CORE FORMWORK FOR THE PRODUCTION OF HOLLOW ELEMENTS FROM CONCRETE OD. DGL. - Google Patents
EXTENSIBLE CORE FORMWORK FOR THE PRODUCTION OF HOLLOW ELEMENTS FROM CONCRETE OD. DGL.Info
- Publication number
- ATA994874A ATA994874A AT994874A AT994874A ATA994874A AT A994874 A ATA994874 A AT A994874A AT 994874 A AT994874 A AT 994874A AT 994874 A AT994874 A AT 994874A AT A994874 A ATA994874 A AT A994874A
- Authority
- AT
- Austria
- Prior art keywords
- dgl
- concrete
- production
- hollow elements
- core formwork
- Prior art date
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)
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 |
---|---|
ATA994874A true ATA994874A (en) | 1978-09-15 |
AT349957B AT349957B (en) | 1979-05-10 |
Family
ID=5930665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT994874A AT349957B (en) | 1974-11-13 | 1974-12-13 | EXTENSIBLE CORE FORMWORK FOR THE PRODUCTION OF HOLLOW ELEMENTS FROM CONCRETE OD. DGL. |
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)
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)
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 |
-
1974
- 1974-11-13 DE DE19742453706 patent/DE2453706C2/en not_active Expired
- 1974-12-13 AT AT994874A patent/AT349957B/en not_active IP Right Cessation
-
1975
- 1975-11-10 NL NL7513155A patent/NL7513155A/en not_active Application Discontinuation
- 1975-11-12 FR FR7534467A patent/FR2291332A1/en active Granted
- 1975-11-13 BE BE161860A patent/BE835559A/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR2291332B3 (en) | 1979-06-29 |
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 |
AT349957B (en) | 1979-05-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ELJ | Ceased due to non-payment of the annual fee |