GB1225564A - - Google Patents
Info
- Publication number
- GB1225564A GB1225564A GB1225564DA GB1225564A GB 1225564 A GB1225564 A GB 1225564A GB 1225564D A GB1225564D A GB 1225564DA GB 1225564 A GB1225564 A GB 1225564A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bit
- cutting edges
- march
- teeth
- becker
- 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
- 238000005553 drilling Methods 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
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
- E21B10/02—Core bits
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
1,225,564. Boring earth &c. BECKER DRILLS Ltd. 24 March, 1969 [25 March, 1968], No. 15256/69. Heading E1F. A tubular percussive bit has circumferentially extending cutting edges 13, 113, and teeth 18 having cutting edges 19 at a level between those of the cutting edges 13, 113. The upper end of the bit has an impact surface (not shown) having inlets for drilling fluid (air) which discharges through slots 116 in the teeth to the interior of the bit.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA15742 | 1968-03-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1225564A true GB1225564A (en) | 1971-03-17 |
Family
ID=4084116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1225564D Expired GB1225564A (en) | 1968-03-25 | 1969-03-24 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1225564A (en) |
-
1969
- 1969-03-24 GB GB1225564D patent/GB1225564A/en not_active Expired
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |