NL7308915A - - Google Patents
Info
- Publication number
- NL7308915A NL7308915A NL7308915A NL7308915A NL7308915A NL 7308915 A NL7308915 A NL 7308915A NL 7308915 A NL7308915 A NL 7308915A NL 7308915 A NL7308915 A NL 7308915A NL 7308915 A NL7308915 A NL 7308915A
- Authority
- NL
- Netherlands
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
- E21B10/08—Roller bits
- E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
- E21B10/24—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details
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)
- Drilling And Boring (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00330412A US3847234A (en) | 1972-06-01 | 1973-02-07 | Pressure relief device for drill bit lubrication system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7308915A true NL7308915A (enrdf_load_stackoverflow) | 1974-08-09 |
Family
ID=23289651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7308915A NL7308915A (enrdf_load_stackoverflow) | 1973-02-07 | 1973-06-27 |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5937389B2 (enrdf_load_stackoverflow) |
| BR (1) | BR7305126D0 (enrdf_load_stackoverflow) |
| DE (1) | DE2332737A1 (enrdf_load_stackoverflow) |
| NL (1) | NL7308915A (enrdf_load_stackoverflow) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5996387A (ja) * | 1982-11-25 | 1984-06-02 | スタ−ロイ産業株式会社 | 回転式ロツクビツト |
| JPS59178494U (ja) * | 1983-05-13 | 1984-11-29 | 株式会社小松製作所 | タ−ボドリルのメカニカルシ−ル装置 |
| US4552228A (en) * | 1984-02-21 | 1985-11-12 | Varel Mfg. Co. | Low pressure differential compensator |
| US4577705A (en) * | 1984-04-23 | 1986-03-25 | Smith International, Inc. | Bellows lubricant pressurizer for sealed bearing rock bits |
| JPS6180884U (enrdf_load_stackoverflow) * | 1984-10-31 | 1986-05-29 | ||
| US6092611A (en) * | 1997-05-28 | 2000-07-25 | Dresser Industries, Inc. | Encapsulated elastomeric relief valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3719241A (en) * | 1971-11-24 | 1973-03-06 | Dresser Ind | Free breathing lubrication system for sealed bearing rock bits |
-
1973
- 1973-06-27 NL NL7308915A patent/NL7308915A/xx not_active Application Discontinuation
- 1973-06-27 DE DE19732332737 patent/DE2332737A1/de not_active Ceased
- 1973-06-29 JP JP48072981A patent/JPS5937389B2/ja not_active Expired
- 1973-07-10 BR BR512673A patent/BR7305126D0/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5937389B2 (ja) | 1984-09-10 |
| JPS49111802A (enrdf_load_stackoverflow) | 1974-10-24 |
| BR7305126D0 (pt) | 1974-09-24 |
| DE2332737A1 (de) | 1974-08-08 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |