FR2447783A1 - Foret a pierre ou beton avec tete de forage en metal dur - Google Patents
Foret a pierre ou beton avec tete de forage en metal durInfo
- Publication number
- FR2447783A1 FR2447783A1 FR7902778A FR7902778A FR2447783A1 FR 2447783 A1 FR2447783 A1 FR 2447783A1 FR 7902778 A FR7902778 A FR 7902778A FR 7902778 A FR7902778 A FR 7902778A FR 2447783 A1 FR2447783 A1 FR 2447783A1
- Authority
- FR
- France
- Prior art keywords
- pyramidal
- cutters
- carrying
- frusto
- drill
- 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.)
- Granted
Links
Classifications
-
- 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
- B25D17/02—Percussive tool bits
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Drilling Tools (AREA)
Abstract
FORET A PIERRE OU BETON POUR EFFECTUER DES FORAGES PAR ROTATION ET PERCUSSION, DONT LA TETE, AU MOINS PARTIELLEMENT EN METAL DUR, EST PLACEE A L'EXTREMITE LIBRE DE LA TIGE DU FORET. LA TETE DE FORET, REALISEE SOUS FORME DE DISQUE OU D'ANNEAU CIRCULAIRE EN VUE DE DESSUS SUR SA FACE FRONTALE, EST CONSTITUEE PAR UNE PIECE FACONNEE 4 MASSIVE EN METAL DUR, SUR LA FACE FRONTALE DE LAQUELLE SONT USINES EN RELIEF DES CORPS DE TAILLE 5 EN FORME DE PYRAMIDES OU DE TRONCS DE PYRAMIDE QUI SE RETRECISSENT EN S'ELOIGNANT DE LA TIGE DE FORET. APPLICATION AUX FORETS DE GRANDES LONGUEURS.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7902778A FR2447783A1 (fr) | 1979-02-02 | 1979-02-02 | Foret a pierre ou beton avec tete de forage en metal dur |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7902778A FR2447783A1 (fr) | 1979-02-02 | 1979-02-02 | Foret a pierre ou beton avec tete de forage en metal dur |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2447783A1 true FR2447783A1 (fr) | 1980-08-29 |
FR2447783B1 FR2447783B1 (fr) | 1984-08-24 |
Family
ID=9221557
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7902778A Granted FR2447783A1 (fr) | 1979-02-02 | 1979-02-02 | Foret a pierre ou beton avec tete de forage en metal dur |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2447783A1 (fr) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1561975A (en) * | 1924-03-21 | 1925-11-17 | Frank F Hayes | Mining drill |
US2579712A (en) * | 1949-05-21 | 1951-12-25 | Carl V Tilden | Drill bit |
US2593229A (en) * | 1947-11-14 | 1952-04-15 | Wheel Trueing Tool Co | Drill bit |
FR55532E (fr) * | 1941-08-14 | 1952-09-01 | Cie Ingersoll Rand | Perfectionnements aux outils de perforation de roches |
US2673716A (en) * | 1950-09-02 | 1954-03-30 | Clyde E Avery | Bit |
GB911461A (en) * | 1959-02-27 | 1962-11-28 | Timken Roller Bearing Co | Drill bit |
FR2014332A1 (fr) * | 1968-06-27 | 1970-04-17 | Hawera Probst Kg Hartmetall | |
US3961858A (en) * | 1975-06-11 | 1976-06-08 | B&M Die Co., Inc. | Compound angle cutting edge |
-
1979
- 1979-02-02 FR FR7902778A patent/FR2447783A1/fr active Granted
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1561975A (en) * | 1924-03-21 | 1925-11-17 | Frank F Hayes | Mining drill |
FR55532E (fr) * | 1941-08-14 | 1952-09-01 | Cie Ingersoll Rand | Perfectionnements aux outils de perforation de roches |
US2593229A (en) * | 1947-11-14 | 1952-04-15 | Wheel Trueing Tool Co | Drill bit |
US2579712A (en) * | 1949-05-21 | 1951-12-25 | Carl V Tilden | Drill bit |
US2673716A (en) * | 1950-09-02 | 1954-03-30 | Clyde E Avery | Bit |
GB911461A (en) * | 1959-02-27 | 1962-11-28 | Timken Roller Bearing Co | Drill bit |
FR2014332A1 (fr) * | 1968-06-27 | 1970-04-17 | Hawera Probst Kg Hartmetall | |
US3961858A (en) * | 1975-06-11 | 1976-06-08 | B&M Die Co., Inc. | Compound angle cutting edge |
Also Published As
Publication number | Publication date |
---|---|
FR2447783B1 (fr) | 1984-08-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |