NL7809267A - GROUND DRILLING CHISEL WITH SNAP CUTTING HEAD RETENTION. - Google Patents
GROUND DRILLING CHISEL WITH SNAP CUTTING HEAD RETENTION.Info
- Publication number
- NL7809267A NL7809267A NL7809267A NL7809267A NL7809267A NL 7809267 A NL7809267 A NL 7809267A NL 7809267 A NL7809267 A NL 7809267A NL 7809267 A NL7809267 A NL 7809267A NL 7809267 A NL7809267 A NL 7809267A
- Authority
- NL
- Netherlands
- Prior art keywords
- cutting head
- ground drilling
- head retention
- drilling chisel
- snap cutting
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title 1
- 230000014759 maintenance of location Effects 0.000 title 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
- E21B10/08—Roller bits
- E21B10/20—Roller bits characterised by detachable or adjustable parts, e.g. legs or axles
-
- 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
- E21B10/08—Roller bits
- E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C43/00—Assembling bearings
- F16C43/02—Assembling sliding-contact bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2352/00—Apparatus for drilling
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (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)
- General Engineering & Computer Science (AREA)
- Earth Drilling (AREA)
- Sliding-Contact Bearings (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US84664277A | 1977-10-28 | 1977-10-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7809267A true NL7809267A (en) | 1979-05-02 |
Family
ID=25298509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7809267A NL7809267A (en) | 1977-10-28 | 1978-09-12 | GROUND DRILLING CHISEL WITH SNAP CUTTING HEAD RETENTION. |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5471702A (en) |
BR (1) | BR7804960A (en) |
CA (1) | CA1096851A (en) |
FR (1) | FR2407333A1 (en) |
GB (1) | GB1599377A (en) |
MX (1) | MX148805A (en) |
NL (1) | NL7809267A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4577705A (en) * | 1984-04-23 | 1986-03-25 | Smith International, Inc. | Bellows lubricant pressurizer for sealed bearing rock bits |
-
1978
- 1978-05-31 GB GB24708/78A patent/GB1599377A/en not_active Expired
- 1978-06-02 CA CA304,706A patent/CA1096851A/en not_active Expired
- 1978-08-02 BR BR7804960A patent/BR7804960A/en unknown
- 1978-09-12 NL NL7809267A patent/NL7809267A/en not_active Application Discontinuation
- 1978-09-19 FR FR7826844A patent/FR2407333A1/en not_active Withdrawn
- 1978-09-26 MX MX175014A patent/MX148805A/en unknown
- 1978-10-24 JP JP13145278A patent/JPS5471702A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4577705A (en) * | 1984-04-23 | 1986-03-25 | Smith International, Inc. | Bellows lubricant pressurizer for sealed bearing rock bits |
Also Published As
Publication number | Publication date |
---|---|
FR2407333A1 (en) | 1979-05-25 |
JPS6128076B2 (en) | 1986-06-28 |
MX148805A (en) | 1983-06-22 |
GB1599377A (en) | 1981-09-30 |
BR7804960A (en) | 1979-05-29 |
CA1096851A (en) | 1981-03-03 |
JPS5471702A (en) | 1979-06-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A85 | Still pending on 85-01-01 | ||
BA | A request for search or an international-type search has been filed | ||
BB | A search report has been drawn up | ||
BC | A request for examination has been filed | ||
BV | The patent application has lapsed |