JPS5310521B2 - - Google Patents
Info
- Publication number
- JPS5310521B2 JPS5310521B2 JP8188772A JP8188772A JPS5310521B2 JP S5310521 B2 JPS5310521 B2 JP S5310521B2 JP 8188772 A JP8188772 A JP 8188772A JP 8188772 A JP8188772 A JP 8188772A JP S5310521 B2 JPS5310521 B2 JP S5310521B2
- Authority
- JP
- Japan
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/08—Roller bits
- E21B10/10—Roller bits with roller axle supported at both ends
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17345171A | 1971-08-20 | 1971-08-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4829601A JPS4829601A (ja) | 1973-04-19 |
| JPS5310521B2 true JPS5310521B2 (ja) | 1978-04-14 |
Family
ID=22632096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8188772A Expired JPS5310521B2 (ja) | 1971-08-20 | 1972-08-17 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3749188A (ja) |
| JP (1) | JPS5310521B2 (ja) |
| AU (1) | AU460979B2 (ja) |
| CA (1) | CA983010A (ja) |
| DE (1) | DE2238978B2 (ja) |
| SE (2) | SE392499B (ja) |
| ZA (1) | ZA725246B (ja) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3921734A (en) * | 1972-10-17 | 1975-11-25 | Kennametal Inc | Raise boring head and rolling cutter arrangement therefor |
| US3851718A (en) * | 1972-11-09 | 1974-12-03 | Jarva Inc | Roller cutter |
| US3835944A (en) * | 1973-06-12 | 1974-09-17 | Hard Metals Ltd | Cutting unit for use on rock boring machines |
| SE415994B (sv) * | 1975-01-27 | 1980-11-17 | Sandvik Ab | Anordning vid rullborrkronor |
| DE2809951C3 (de) * | 1978-03-08 | 1982-04-15 | Mannesmann AG, 4000 Düsseldorf | Bohrkopf für Tunnelvortriebsmaschinen |
| US4193637A (en) * | 1978-08-07 | 1980-03-18 | The Robbins Company | Rotary cutterhead for an earth boring machine |
| USRE31511E (en) | 1978-08-07 | 1984-01-31 | The Robbins Company | Rotary cutterhead for an earth boring machine |
| US4760890A (en) * | 1987-05-18 | 1988-08-02 | Tamrock Inc. | Cutter assembly for rotary boring of earth |
| US5421422A (en) * | 1993-11-19 | 1995-06-06 | Boretec Inc | Roller cutter mount for tunneling machine |
| US5487435A (en) * | 1994-07-07 | 1996-01-30 | Baker Hughes Incorporated | Mounting system for raise and shaft cutters |
| AT413047B (de) | 2002-01-23 | 2005-10-15 | Voest Alpine Bergtechnik | Träger für eine fliegende schneiddiskenlagerung |
| US8695732B2 (en) * | 2008-09-16 | 2014-04-15 | Stu Blattner | Earth-boring cutter mount and assembly |
| CN104110262A (zh) * | 2014-07-21 | 2014-10-22 | 洛阳理工学院 | 一种用于tbm的钻滚结合的刀盘结构 |
-
1971
- 1971-08-20 US US00173451A patent/US3749188A/en not_active Expired - Lifetime
-
1972
- 1972-07-31 SE SE7209951A patent/SE392499B/xx unknown
- 1972-07-31 AU AU45147/72A patent/AU460979B2/en not_active Expired
- 1972-07-31 ZA ZA725246A patent/ZA725246B/xx unknown
- 1972-07-31 CA CA148,340A patent/CA983010A/en not_active Expired
- 1972-08-08 DE DE2238978A patent/DE2238978B2/de not_active Ceased
- 1972-08-17 JP JP8188772A patent/JPS5310521B2/ja not_active Expired
-
1975
- 1975-12-17 SE SE7514252A patent/SE7514252L/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SE392499B (sv) | 1977-03-28 |
| AU460979B2 (en) | 1975-05-15 |
| JPS4829601A (ja) | 1973-04-19 |
| DE2238978B2 (de) | 1978-03-09 |
| CA983010A (en) | 1976-02-03 |
| ZA725246B (en) | 1973-04-25 |
| DE2238978A1 (de) | 1973-03-29 |
| SE7514252L (sv) | 1975-12-17 |
| AU4514772A (en) | 1974-02-07 |
| US3749188A (en) | 1973-07-31 |