SE220325C1 - - Google Patents
Info
- Publication number
- SE220325C1 SE220325C1 SE189262A SE189262A SE220325C1 SE 220325 C1 SE220325 C1 SE 220325C1 SE 189262 A SE189262 A SE 189262A SE 189262 A SE189262 A SE 189262A SE 220325 C1 SE220325 C1 SE 220325C1
- Authority
- SE
- Sweden
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
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
- E21B10/28—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with non-expansible roller cutters
-
- 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
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB61648A DE1235237B (en) | 1961-03-13 | 1961-03-13 | Extension roller chisel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE220325C1 true SE220325C1 (en) | 1968-05-07 |
Family
ID=6973275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE189262A SE220325C1 (en) | 1961-03-13 | 1962-02-21 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3204710A (en) |
| BE (1) | BE614760A (en) |
| CH (1) | CH391622A (en) |
| DE (1) | DE1235237B (en) |
| GB (1) | GB980644A (en) |
| NL (1) | NL275415A (en) |
| SE (1) | SE220325C1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3326307A (en) * | 1965-01-28 | 1967-06-20 | Chicago Pneumatic Tool Co | Rock bit roller cone |
| ZA723776B (en) * | 1972-06-02 | 1974-01-30 | Hard Metals Ltd | Disc cutting unit for use on rock boring machines |
| US3982595A (en) * | 1972-07-24 | 1976-09-28 | Dresser Industries, Inc. | Rock boring cutter with replaceable cutting elements |
| US4040493A (en) * | 1976-05-13 | 1977-08-09 | Dresser Industries, Inc. | Rock boring cutter with thread-on replaceable cutting element |
| US4248314A (en) * | 1979-05-29 | 1981-02-03 | Hughes Tool Company | Shaft drill bit with overlapping cutter arrangement |
| SE467700B (en) * | 1986-01-28 | 1992-08-31 | Boart Int Ltd | DISC SIZE SHOULD BE PRESCRIBED IN CUTTING MACHINERY |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE187375C (en) * | ||||
| US748206A (en) * | 1902-09-04 | 1903-12-29 | Wilhelm Mueller | Tube-cleaner. |
| US1152151A (en) * | 1911-04-03 | 1915-08-31 | Harry R Decker | Drill. |
| US1747909A (en) * | 1922-05-29 | 1930-02-18 | Universal Rotary Bit Company | Rotary sectional bit |
| US1747908A (en) * | 1923-08-11 | 1930-02-18 | Universal Rotary Bit Company | Rotary drill bit |
| US2241549A (en) * | 1940-02-06 | 1941-05-13 | Sr John W Hatcher | Rotary bit |
| US3016099A (en) * | 1959-07-17 | 1962-01-09 | Terminal Drilling And Producti | Hole enlarger |
| US3046055A (en) * | 1960-02-19 | 1962-07-24 | Anderson Co | Position-adjusting mechanism |
| FR1252535A (en) * | 1960-04-01 | 1961-01-27 | Bergwerksverband Gmbh | Roller widening foil, for drilling |
| DE1224679B (en) * | 1961-02-27 | 1966-09-15 | Soeding & Halbach J C | Extension roller chisel |
-
0
- NL NL275415D patent/NL275415A/xx unknown
-
1961
- 1961-03-13 DE DEB61648A patent/DE1235237B/en active Pending
-
1962
- 1962-02-21 SE SE189262A patent/SE220325C1/sv unknown
- 1962-02-23 CH CH222962A patent/CH391622A/en unknown
- 1962-03-06 GB GB8561/62A patent/GB980644A/en not_active Expired
- 1962-03-07 BE BE614760A patent/BE614760A/en unknown
- 1962-03-12 US US178950A patent/US3204710A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US3204710A (en) | 1965-09-07 |
| GB980644A (en) | 1965-01-13 |
| BE614760A (en) | 1962-09-02 |
| NL275415A (en) | |
| DE1235237B (en) | 1967-03-02 |
| CH391622A (en) | 1965-05-15 |