FR2461791B1 - - Google Patents
Info
- Publication number
- FR2461791B1 FR2461791B1 FR8012535A FR8012535A FR2461791B1 FR 2461791 B1 FR2461791 B1 FR 2461791B1 FR 8012535 A FR8012535 A FR 8012535A FR 8012535 A FR8012535 A FR 8012535A FR 2461791 B1 FR2461791 B1 FR 2461791B1
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/56—Button-type inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/28—Supports; Devices for holding power-driven percussive tools in working position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/18—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by milling, e.g. channelling by means of milling tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/30—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor to form contours, i.e. curved surfaces, irrespective of the method of working used
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792929835 DE2929835A1 (de) | 1979-07-23 | 1979-07-23 | Vorrichtung zur herstellung von schlitzen in bauteilen aus beton, gestein o.dgl. werkstoffen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2461791A1 FR2461791A1 (fr) | 1981-02-06 |
| FR2461791B1 true FR2461791B1 (show.php) | 1983-07-18 |
Family
ID=6076540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8012535A Granted FR2461791A1 (fr) | 1979-07-23 | 1980-06-05 | Dispositif pour former des fentes dans des elements de construction en beton, en pierre ou en materiaux semblables |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2929835A1 (show.php) |
| FR (1) | FR2461791A1 (show.php) |
| GB (1) | GB2054441A (show.php) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5582538A (en) * | 1994-04-04 | 1996-12-10 | Hillestad; Tollief O. | Boiler tube cutting apparatus |
| CN105350822B (zh) * | 2015-12-10 | 2017-11-10 | 国网四川省电力公司凉山供电公司 | 一种分体咬合式便捷围栏杆 |
| CN120773201A (zh) * | 2025-07-25 | 2025-10-14 | 中建五局第四建设有限公司 | 一种用于混凝土预制构件的切割装置 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE26096C (de) * | R. K. jones in Birkenhead, Chester, England | Transportabler Lochschneider für Metallplatten | ||
| GB681329A (en) * | 1950-10-03 | 1952-10-22 | Albert George Birch | Improvements in rotary cutting tools |
| US3007686A (en) * | 1958-09-04 | 1961-11-07 | Carl G Pearson | Coring apparatus |
| US3146675A (en) * | 1961-02-13 | 1964-09-01 | Snappy Inc | Portable sheet metal hole cutter |
-
1979
- 1979-07-23 DE DE19792929835 patent/DE2929835A1/de not_active Withdrawn
-
1980
- 1980-06-05 FR FR8012535A patent/FR2461791A1/fr active Granted
- 1980-06-09 GB GB8018805A patent/GB2054441A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GB2054441A (en) | 1981-02-18 |
| FR2461791A1 (fr) | 1981-02-06 |
| DE2929835A1 (de) | 1981-02-19 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |