CS150521B2 - - Google Patents
Info
- Publication number
- CS150521B2 CS150521B2 CS6615A CS661571A CS150521B2 CS 150521 B2 CS150521 B2 CS 150521B2 CS 6615 A CS6615 A CS 6615A CS 661571 A CS661571 A CS 661571A CS 150521 B2 CS150521 B2 CS 150521B2
- Authority
- CS
- Czechoslovakia
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
-
- 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
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
- E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/18—Configuration of the drill point
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2251/00—Details of tools for drilling machines
- B23B2251/24—Overall form of drilling tools
- B23B2251/241—Cross sections of the diameter of the drill
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Drilling Tools (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702045896 DE2045896A1 (de) | 1970-01-30 | 1970-09-17 | Schlagbohrdubeleinheit zum Bohren von Lochern und zum dann Setzen von Be festigungselementen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS150521B2 true CS150521B2 (ja) | 1973-09-04 |
Family
ID=5782638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS6615A CS150521B2 (ja) | 1970-09-17 | 1971-09-16 |
Country Status (6)
| Country | Link |
|---|---|
| BR (1) | BR7106024D0 (ja) |
| CH (1) | CH544234A (ja) |
| CS (1) | CS150521B2 (ja) |
| ES (1) | ES199986Y (ja) |
| GB (1) | GB1329664A (ja) |
| NL (1) | NL7112754A (ja) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10031968A1 (de) * | 2000-06-30 | 2002-01-10 | Hilti Ag | Bohrer für Gestein |
-
1971
- 1971-09-03 GB GB4121671A patent/GB1329664A/en not_active Expired
- 1971-09-13 CH CH1336171A patent/CH544234A/de not_active IP Right Cessation
- 1971-09-14 BR BR6024/71A patent/BR7106024D0/pt unknown
- 1971-09-16 NL NL7112754A patent/NL7112754A/xx unknown
- 1971-09-16 CS CS6615A patent/CS150521B2/cs unknown
- 1971-09-16 ES ES1971199986U patent/ES199986Y/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ES199986Y (es) | 1976-01-01 |
| NL7112754A (ja) | 1972-03-21 |
| ES199986U (es) | 1975-08-16 |
| BR7106024D0 (pt) | 1973-03-29 |
| GB1329664A (en) | 1973-09-12 |
| CH544234A (de) | 1973-11-15 |