FR1260080A - Bit-tight knobs - Google Patents

Bit-tight knobs

Info

Publication number
FR1260080A
FR1260080A FR822052A FR822052A FR1260080A FR 1260080 A FR1260080 A FR 1260080A FR 822052 A FR822052 A FR 822052A FR 822052 A FR822052 A FR 822052A FR 1260080 A FR1260080 A FR 1260080A
Authority
FR
France
Prior art keywords
knobs
tight
bit
Prior art date
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
Application number
FR822052A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MATERIEL DE FORAGE SOC DE FAB
Original Assignee
MATERIEL DE FORAGE SOC DE FAB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MATERIEL DE FORAGE SOC DE FAB filed Critical MATERIEL DE FORAGE SOC DE FAB
Priority to FR822052A priority Critical patent/FR1260080A/en
Application granted granted Critical
Publication of FR1260080A publication Critical patent/FR1260080A/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/08Roller bits
    • E21B10/22Roller bits characterised by bearing, lubrication or sealing details
    • E21B10/25Roller bits characterised by bearing, lubrication or sealing details characterised by sealing details
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/08Roller bits
    • E21B10/22Roller bits characterised by bearing, lubrication or sealing details
    • E21B10/24Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/08Roller bits
    • E21B10/22Roller bits characterised by bearing, lubrication or sealing details
    • E21B10/24Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details
    • E21B10/246Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details with pumping means for feeding lubricant
FR822052A 1960-03-22 1960-03-22 Bit-tight knobs Expired FR1260080A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR822052A FR1260080A (en) 1960-03-22 1960-03-22 Bit-tight knobs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR822052A FR1260080A (en) 1960-03-22 1960-03-22 Bit-tight knobs

Publications (1)

Publication Number Publication Date
FR1260080A true FR1260080A (en) 1961-05-05

Family

ID=8727626

Family Applications (1)

Application Number Title Priority Date Filing Date
FR822052A Expired FR1260080A (en) 1960-03-22 1960-03-22 Bit-tight knobs

Country Status (1)

Country Link
FR (1) FR1260080A (en)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127942A (en) * 1962-01-02 1964-04-07 Smith Ind International Inc Bearing closure for rotary rock bit
US3467448A (en) * 1965-11-24 1969-09-16 Hughes Tool Co Drill bit bearing seal assembly including resiliently mounted rigid ring
FR2302408A1 (en) * 1975-02-27 1976-09-24 Dresser Ind A sealing device for rotation by the drill bit for rock
US3990525A (en) * 1975-02-27 1976-11-09 Dresser Industries, Inc. Sealing system for a rotary rock bit
US4168868A (en) * 1978-07-17 1979-09-25 Dresser Industries, Inc. Sealing system for an earth boring cutter
US4200343A (en) * 1978-12-21 1980-04-29 Dresser Industries, Inc. Sealing system for a rotary rock bit
US4253710A (en) * 1979-10-09 1981-03-03 Dresser Industries, Inc. High temperature sealing system for a rotary rock bit
FR2489878A1 (en) * 1980-09-08 1982-03-12 Hughes Tool Co Rolling straw bore drilling machine and improved mounting system for strawberries
EP0415519A1 (en) * 1989-07-19 1991-03-06 Intevep, S.A. Dual seal system for rotary drill bit
US5005989A (en) * 1988-04-05 1991-04-09 Sandvik Ab Roller bit
EP1662088A1 (en) * 2001-02-15 2006-05-31 Baker Hughes Incorporated Metal-face-seal rock bit and lubricant passage for a rock bit
US8536203B2 (en) 2006-04-10 2013-09-17 Bial-Portela & Ca, S.A. Pharmaceutical compounds
US9550759B2 (en) 2005-07-26 2017-01-24 Bial—Portela & Ca, S.A. Nitrocatechol derivatives as COMT inhibitors
US9630955B2 (en) 2011-12-13 2017-04-25 BIAL—Portela & Cª., S.A Chemical compound useful as intermediate for preparing a catechol-O-methyltransferase inhibitor
US9745290B2 (en) 2007-01-31 2017-08-29 Bial—Portela & Ca, S.A. Dosage regimen for COMT inhibitors
US9845316B2 (en) 2008-03-17 2017-12-19 BIAL—Portela & CA., S.A. Crystal forms of 5-[3-(2,5-dichloro-4, 6-dimethyl-1-oxy-pyridine-3-yl)[1,2,4]oxadiazol-5-yl]-3-nitrobenzene-1,2-diol
US10065944B2 (en) 2011-02-11 2018-09-04 Bial-Portela & Ca, S.A. Administration regime for nitrocatechols
US10071085B2 (en) 2009-04-01 2018-09-11 Bial—Portela & Ca, S.A. Pharmaceutical formulations comprising nitrocatechol derivatives and methods of making thereof
US10357468B2 (en) 2014-11-28 2019-07-23 Bial—Portela & Ca, S.A. Medicaments for slowing Parkinson's disease

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127942A (en) * 1962-01-02 1964-04-07 Smith Ind International Inc Bearing closure for rotary rock bit
US3467448A (en) * 1965-11-24 1969-09-16 Hughes Tool Co Drill bit bearing seal assembly including resiliently mounted rigid ring
FR2302408A1 (en) * 1975-02-27 1976-09-24 Dresser Ind A sealing device for rotation by the drill bit for rock
US3990525A (en) * 1975-02-27 1976-11-09 Dresser Industries, Inc. Sealing system for a rotary rock bit
US4168868A (en) * 1978-07-17 1979-09-25 Dresser Industries, Inc. Sealing system for an earth boring cutter
US4200343A (en) * 1978-12-21 1980-04-29 Dresser Industries, Inc. Sealing system for a rotary rock bit
US4253710A (en) * 1979-10-09 1981-03-03 Dresser Industries, Inc. High temperature sealing system for a rotary rock bit
FR2489878A1 (en) * 1980-09-08 1982-03-12 Hughes Tool Co Rolling straw bore drilling machine and improved mounting system for strawberries
US4359113A (en) * 1980-09-08 1982-11-16 Hughes Tool Company Earth boring bit with extended gage
US5005989A (en) * 1988-04-05 1991-04-09 Sandvik Ab Roller bit
EP0415519A1 (en) * 1989-07-19 1991-03-06 Intevep, S.A. Dual seal system for rotary drill bit
EP1662088A1 (en) * 2001-02-15 2006-05-31 Baker Hughes Incorporated Metal-face-seal rock bit and lubricant passage for a rock bit
US9550759B2 (en) 2005-07-26 2017-01-24 Bial—Portela & Ca, S.A. Nitrocatechol derivatives as COMT inhibitors
US10336740B2 (en) 2005-07-26 2019-07-02 Bial—Portela & Ca, S.A. Nitrocatechol derivatives as COMT inhibitors
US8536203B2 (en) 2006-04-10 2013-09-17 Bial-Portela & Ca, S.A. Pharmaceutical compounds
US9446012B2 (en) 2006-04-10 2016-09-20 Bial—Portela & Ca, S.A. Pharmaceutical compounds
US9745290B2 (en) 2007-01-31 2017-08-29 Bial—Portela & Ca, S.A. Dosage regimen for COMT inhibitors
US9845316B2 (en) 2008-03-17 2017-12-19 BIAL—Portela & CA., S.A. Crystal forms of 5-[3-(2,5-dichloro-4, 6-dimethyl-1-oxy-pyridine-3-yl)[1,2,4]oxadiazol-5-yl]-3-nitrobenzene-1,2-diol
US10071085B2 (en) 2009-04-01 2018-09-11 Bial—Portela & Ca, S.A. Pharmaceutical formulations comprising nitrocatechol derivatives and methods of making thereof
US10583130B2 (en) 2009-04-01 2020-03-10 Bial-Portela & Ca, S.A. Pharmaceutical formulations compromising nitrocatechol derivatives and methods of making thereof
US10065944B2 (en) 2011-02-11 2018-09-04 Bial-Portela & Ca, S.A. Administration regime for nitrocatechols
US9630955B2 (en) 2011-12-13 2017-04-25 BIAL—Portela & Cª., S.A Chemical compound useful as intermediate for preparing a catechol-O-methyltransferase inhibitor
US10357468B2 (en) 2014-11-28 2019-07-23 Bial—Portela & Ca, S.A. Medicaments for slowing Parkinson's disease

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