ZA721087B - Improvements in concrete pipes and the like - Google Patents
Improvements in concrete pipes and the likeInfo
- Publication number
- ZA721087B ZA721087B ZA721087A ZA721087A ZA721087B ZA 721087 B ZA721087 B ZA 721087B ZA 721087 A ZA721087 A ZA 721087A ZA 721087 A ZA721087 A ZA 721087A ZA 721087 B ZA721087 B ZA 721087B
- Authority
- ZA
- South Africa
- Prior art keywords
- concrete pipes
- pipes
- concrete
- 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
- B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
- B28B19/0038—Machines or methods for applying the material to surfaces to form a permanent layer thereon lining the outer wall of hollow objects, e.g. pipes
-
- 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
- B28B21/70—Methods or machines specially adapted for the production of tubular articles by building-up from preformed elements
- B28B21/72—Producing multilayer tubes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AUPA414271 | 1971-02-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA721087B true ZA721087B (en) | 1972-11-29 |
Family
ID=3764743
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA721087A ZA721087B (en) | 1971-02-26 | 1972-02-18 | Improvements in concrete pipes and the like |
Country Status (7)
Country | Link |
---|---|
DE (1) | DE2208723A1 (de) |
FR (1) | FR2127808A5 (de) |
GB (1) | GB1384117A (de) |
HK (1) | HK62079A (de) |
IT (1) | IT948675B (de) |
MY (1) | MY7500178A (de) |
ZA (1) | ZA721087B (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2158762A (en) * | 1984-05-14 | 1985-11-20 | Spun Concrete Ltd | Composite pipes |
US5028368A (en) * | 1989-07-11 | 1991-07-02 | International Pipe Machinery Corporation | Method of forming lined pipe |
WO1995033947A1 (en) * | 1994-06-07 | 1995-12-14 | Pipeform, Ltd. | Interlocked plastic-encased concrete pipe |
-
1972
- 1972-02-18 ZA ZA721087A patent/ZA721087B/xx unknown
- 1972-02-21 IT IT48463/72A patent/IT948675B/it active
- 1972-02-21 GB GB798972A patent/GB1384117A/en not_active Expired
- 1972-02-24 DE DE19722208723 patent/DE2208723A1/de active Pending
- 1972-02-25 FR FR7206521A patent/FR2127808A5/fr not_active Expired
-
1975
- 1975-12-30 MY MY178/75A patent/MY7500178A/xx unknown
-
1979
- 1979-08-30 HK HK620/79A patent/HK62079A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
IT948675B (it) | 1973-06-11 |
DE2208723A1 (de) | 1972-09-07 |
GB1384117A (en) | 1975-02-19 |
FR2127808A5 (de) | 1972-10-13 |
HK62079A (en) | 1979-09-07 |
MY7500178A (en) | 1975-12-31 |
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