CH307229A - Rotary drill bits. - Google Patents
Rotary drill bits.Info
- Publication number
- CH307229A CH307229A CH307229DA CH307229A CH 307229 A CH307229 A CH 307229A CH 307229D A CH307229D A CH 307229DA CH 307229 A CH307229 A CH 307229A
- Authority
- CH
- Switzerland
- Prior art keywords
- drill bits
- rotary drill
- rotary
- bits
- drill
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/14—Cooking-vessels for use in hotels, restaurants, or canteens
- A47J27/16—Cooking-vessels for use in hotels, restaurants, or canteens heated by steam
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/08—Pressure-cookers; Lids or locking devices specially adapted therefor
- A47J27/0804—Locking devices
-
- 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
- E21B10/16—Roller bits characterised by tooth form or arrangement
-
- 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
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
- E21B10/52—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type with chisel- or button-type inserts
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Food Science & Technology (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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US257314A US2687875A (en) | 1951-11-20 | 1951-11-20 | Well drill |
Publications (1)
Publication Number | Publication Date |
---|---|
CH307229A true CH307229A (en) | 1955-05-31 |
Family
ID=22975774
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH307229D CH307229A (en) | 1951-11-20 | 1952-04-16 | Rotary drill bits. |
Country Status (7)
Country | Link |
---|---|
US (1) | US2687875A (en) |
BE (2) | BE510209A (en) |
CH (1) | CH307229A (en) |
DE (1) | DE913523C (en) |
FR (1) | FR1052974A (en) |
GB (1) | GB715977A (en) |
NL (1) | NL71579C (en) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2749093A (en) * | 1952-09-12 | 1956-06-05 | Reed Roller Bit Co | Drill bit |
US2774570A (en) * | 1954-05-03 | 1956-12-18 | Hughes Tool Co | Roller cutter for earth drills |
US2774571A (en) * | 1954-07-06 | 1956-12-18 | Hughes Tool Co | Cone type well drill |
US2927778A (en) * | 1956-07-05 | 1960-03-08 | Chicago Pneumatic Tool Co | Rotary drill cutters |
US2923430A (en) * | 1957-09-12 | 1960-02-02 | Filtrox Werk Ag | Apparatus for applying and lifting heavy covers on containers |
US2990025A (en) * | 1958-06-16 | 1961-06-27 | Dresser Ind | Bit |
US3134447A (en) * | 1962-01-31 | 1964-05-26 | Hughes Tool Co | Rolling cone rock bit with wraparound spearpoints |
US3185228A (en) * | 1963-01-21 | 1965-05-25 | Hughes Tool Co | Rotary-percussion drill bit with heel row inserts to prevent wedging |
US3306381A (en) * | 1963-12-16 | 1967-02-28 | Drilco Oil Tools Inc | Reaming apparatus |
DE1284266B (en) * | 1964-08-22 | 1968-11-28 | Doerries Gmbh | Grinding tools for pin mills for crushing, shredding, grinding and / or other treatment of goods, in particular goods for paper, cardboard or cardboard manufacture |
US3382940A (en) * | 1965-10-21 | 1968-05-14 | Frank E. Stebley | Percussion drill bit |
US3269470A (en) * | 1965-11-15 | 1966-08-30 | Hughes Tool Co | Rotary-percussion drill bit with antiwedging gage structure |
US3361494A (en) * | 1966-08-04 | 1968-01-02 | Hughes Tool Co | Journal bearing |
US3442342A (en) * | 1967-07-06 | 1969-05-06 | Hughes Tool Co | Specially shaped inserts for compact rock bits,and rolling cutters and rock bits using such inserts |
DE1583013B1 (en) * | 1967-11-04 | 1971-12-23 | Vnii Burowoj Techniki | Boring chisels |
US3581835A (en) * | 1969-05-08 | 1971-06-01 | Frank E Stebley | Insert for drill bit and manufacture thereof |
US3603414A (en) * | 1970-01-30 | 1971-09-07 | Frank E Stebley | Insert for drilling unit |
US3599737A (en) * | 1970-03-02 | 1971-08-17 | Smith International | Anchored hardened cutter inserts |
US3695723A (en) * | 1970-07-28 | 1972-10-03 | Kennametal Inc | Abrading tool |
US3858670A (en) * | 1972-05-08 | 1975-01-07 | Eugene Gray Ott | Insert cutter for cutting kerfs |
US4108692A (en) * | 1975-01-13 | 1978-08-22 | Smith International, Inc. | Rock bit roller cutter and method therefor |
US4231438A (en) * | 1978-10-10 | 1980-11-04 | Smith International, Inc. | Straight hole insert drill bit |
US4611673A (en) * | 1980-03-24 | 1986-09-16 | Reed Rock Bit Company | Drill bit having offset roller cutters and improved nozzles |
US4393949A (en) * | 1980-12-29 | 1983-07-19 | Peterson Associates, Ltd. | Rock boring apparatus |
US4595067A (en) * | 1984-01-17 | 1986-06-17 | Reed Tool Company | Rotary drill bit, parts therefor, and method of manufacturing thereof |
US4570725A (en) * | 1984-01-31 | 1986-02-18 | Nl Industries, Inc. | Drill bit cutter |
DE3539717C2 (en) * | 1984-06-29 | 1996-08-08 | Spiral Drilling Systems Inc | Roller chisel |
US4552232A (en) * | 1984-06-29 | 1985-11-12 | Spiral Drilling Systems, Inc. | Drill-bit with full offset cutter bodies |
US4869329A (en) * | 1987-04-06 | 1989-09-26 | Smith International, Inc. | Rock bit insert |
US4887493A (en) * | 1988-07-13 | 1989-12-19 | Reed Tool Company | Roller cutter drill bit and method of forming |
US5201376A (en) * | 1992-04-22 | 1993-04-13 | Dresser Industries, Inc. | Rock bit with improved gage insert |
US5421423A (en) * | 1994-03-22 | 1995-06-06 | Dresser Industries, Inc. | Rotary cone drill bit with improved cutter insert |
US5445231A (en) * | 1994-07-25 | 1995-08-29 | Baker Hughes Incorporated | Earth-burning bit having an improved hard-faced tooth structure |
US5697462A (en) * | 1995-06-30 | 1997-12-16 | Baker Hughes Inc. | Earth-boring bit having improved cutting structure |
US5755301A (en) * | 1996-08-09 | 1998-05-26 | Dresser Industries, Inc. | Inserts and compacts with lead-in surface for enhanced retention |
US5954282A (en) * | 1997-02-10 | 1999-09-21 | Britzke; Robert W. | Plate for reducing wear by a material flow |
US20030136588A1 (en) * | 2002-01-24 | 2003-07-24 | David Truax | Roller cone drill bit having designed walk characteristics |
US7370711B2 (en) * | 2005-08-15 | 2008-05-13 | Smith International, Inc. | Rolling cone drill bit having non-circumferentially arranged cutter elements |
US7686104B2 (en) | 2005-08-15 | 2010-03-30 | Smith International, Inc. | Rolling cone drill bit having cutter elements positioned in a plurality of differing radial positions |
JP5760384B2 (en) * | 2010-10-28 | 2015-08-12 | 三菱マテリアル株式会社 | Polycrystalline silicon crushing apparatus and method for producing polycrystalline silicon crushed material |
US20150290833A1 (en) * | 2012-11-20 | 2015-10-15 | Toolgal Degania Industrial Diamonds Ltd. | Chain and chain tool |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US474297A (en) * | 1892-05-03 | Carl hoffmann | ||
US1010127A (en) * | 1909-09-03 | 1911-11-28 | Ernest C Baker | Rotary burnishing-tool. |
US1502851A (en) * | 1922-01-20 | 1924-07-29 | Gale George Washington | Magazine rotary drill bit |
US1885085A (en) * | 1930-11-26 | 1932-10-25 | William F Dalzen | Rock drill |
DE652955C (en) * | 1934-10-06 | 1937-11-11 | Hughes Tool Co | Roller drill for rotary deep drilling |
US2121202A (en) * | 1935-03-19 | 1938-06-21 | Robert J Killgore | Rotary bit |
US2117679A (en) * | 1935-12-27 | 1938-05-17 | Chicago Pneumatic Tool Co | Earth boring drill |
US2194675A (en) * | 1937-04-05 | 1940-03-26 | David C Vance | Drill bit |
US2244617A (en) * | 1939-01-14 | 1941-06-03 | Nat Tool Company | Roller bit |
US2310289A (en) * | 1939-10-23 | 1943-02-09 | Eidco Inc | Drill bit |
US2234273A (en) * | 1940-02-19 | 1941-03-11 | Reed Roller Bit Co | Rock bit cutter |
US2318370A (en) * | 1940-12-06 | 1943-05-04 | Kasner M | Oil well drilling bit |
US2626128A (en) * | 1951-09-24 | 1953-01-20 | Reed Roller Bit Co | Drill bit |
-
0
- NL NL71579D patent/NL71579C/xx active
- BE BE510109D patent/BE510109A/xx unknown
- BE BE510209D patent/BE510209A/xx unknown
-
1951
- 1951-11-20 US US257314A patent/US2687875A/en not_active Expired - Lifetime
-
1952
- 1952-03-11 GB GB6311/52A patent/GB715977A/en not_active Expired
- 1952-03-24 FR FR1052974D patent/FR1052974A/en not_active Expired
- 1952-04-04 DE DEH12036A patent/DE913523C/en not_active Expired
- 1952-04-16 CH CH307229D patent/CH307229A/en unknown
Also Published As
Publication number | Publication date |
---|---|
US2687875A (en) | 1954-08-31 |
DE913523C (en) | 1954-06-14 |
FR1052974A (en) | 1954-01-29 |
BE510109A (en) | |
GB715977A (en) | 1954-09-22 |
BE510209A (en) | |
NL71579C (en) |
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