FR2243323A1 - - Google Patents

Info

Publication number
FR2243323A1
FR2243323A1 FR7430564A FR7430564A FR2243323A1 FR 2243323 A1 FR2243323 A1 FR 2243323A1 FR 7430564 A FR7430564 A FR 7430564A FR 7430564 A FR7430564 A FR 7430564A FR 2243323 A1 FR2243323 A1 FR 2243323A1
Authority
FR
France
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.)
Granted
Application number
FR7430564A
Other languages
French (fr)
Other versions
FR2243323B1 (enrdf_load_stackoverflow
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.)
Dresser Industries Inc
Original Assignee
Dresser Industries Inc
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 Dresser Industries Inc filed Critical Dresser Industries Inc
Publication of FR2243323A1 publication Critical patent/FR2243323A1/fr
Application granted granted Critical
Publication of FR2243323B1 publication Critical patent/FR2243323B1/fr
Expired legal-status Critical Current

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

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)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Earth Drilling (AREA)
FR7430564A 1973-09-12 1974-09-10 Expired FR2243323B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US39662273A 1973-09-12 1973-09-12

Publications (2)

Publication Number Publication Date
FR2243323A1 true FR2243323A1 (enrdf_load_stackoverflow) 1975-04-04
FR2243323B1 FR2243323B1 (enrdf_load_stackoverflow) 1982-11-05

Family

ID=23567984

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7430564A Expired FR2243323B1 (enrdf_load_stackoverflow) 1973-09-12 1974-09-10

Country Status (7)

Country Link
CA (1) CA1031766A (enrdf_load_stackoverflow)
FI (1) FI260474A7 (enrdf_load_stackoverflow)
FR (1) FR2243323B1 (enrdf_load_stackoverflow)
GB (1) GB1473938A (enrdf_load_stackoverflow)
NO (1) NO743269L (enrdf_load_stackoverflow)
SE (1) SE7411469L (enrdf_load_stackoverflow)
ZA (1) ZA745188B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2411957A1 (fr) * 1977-12-14 1979-07-13 Skf Kugellagerfabriken Gmbh Trepan a molettes coniques

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2009987A1 (en) * 1990-02-14 1991-08-14 Kenneth M. White Journal bearing type rock bit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2411957A1 (fr) * 1977-12-14 1979-07-13 Skf Kugellagerfabriken Gmbh Trepan a molettes coniques

Also Published As

Publication number Publication date
GB1473938A (en) 1977-05-18
ZA745188B (en) 1975-08-27
CA1031766A (en) 1978-05-23
SE7411469L (enrdf_load_stackoverflow) 1975-03-13
FI260474A7 (enrdf_load_stackoverflow) 1975-03-13
NO743269L (enrdf_load_stackoverflow) 1975-04-07
FR2243323B1 (enrdf_load_stackoverflow) 1982-11-05
AU7247874A (en) 1976-02-19

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Legal Events

Date Code Title Description
ST Notification of lapse