FR45459E - Rubber mold for cement pipes, reinforced or not - Google Patents
Rubber mold for cement pipes, reinforced or notInfo
- Publication number
- FR45459E FR45459E FR45459DA FR45459E FR 45459 E FR45459 E FR 45459E FR 45459D A FR45459D A FR 45459DA FR 45459 E FR45459 E FR 45459E
- Authority
- FR
- France
- Prior art keywords
- reinforced
- rubber mold
- cement pipes
- cement
- pipes
- Prior art date
- 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
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
- B28B7/32—Cores; Mandrels adjustable, collapsible, or expanding inflatable
-
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR45735T | 1934-12-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR45459E true FR45459E (en) | 1935-09-12 |
Family
ID=8681443
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR771187D Expired FR771187A (en) | 1934-12-26 | 1934-04-04 | Rubber mold for cement pipes, reinforced or not |
FR45459D Expired FR45459E (en) | 1934-12-26 | 1934-11-12 | Rubber mold for cement pipes, reinforced or not |
FR45735D Expired FR45735E (en) | 1934-12-26 | 1934-12-26 | Rubber mold for reinforced or non-reinforced cement pipes |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR771187D Expired FR771187A (en) | 1934-12-26 | 1934-04-04 | Rubber mold for cement pipes, reinforced or not |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR45735D Expired FR45735E (en) | 1934-12-26 | 1934-12-26 | Rubber mold for reinforced or non-reinforced cement pipes |
Country Status (1)
Country | Link |
---|---|
FR (3) | FR771187A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19639817A1 (en) * | 1996-09-27 | 1998-04-02 | Hoechst Ag | Use of 1-hydroxy-2-pyridones for the treatment of skin infections |
EP1174234A3 (en) * | 2000-07-18 | 2003-05-14 | Kalenborn Kalprotect - Dr. Mauritz GmbH & Co. KG | Method and apparatus for lining the inner wall of pipes |
GB2478739A (en) * | 2010-03-16 | 2011-09-21 | John Anthony Douglas Bruce Durham | Hollowcore Slabs formed with inflatable core formers |
-
1934
- 1934-04-04 FR FR771187D patent/FR771187A/en not_active Expired
- 1934-11-12 FR FR45459D patent/FR45459E/en not_active Expired
- 1934-12-26 FR FR45735D patent/FR45735E/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR771187A (en) | 1934-10-02 |
FR45735E (en) | 1935-11-18 |
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