FR357403A - Fleuret double excentré pour forages - Google Patents

Fleuret double excentré pour forages

Info

Publication number
FR357403A
FR357403A FR357403A FR357403DA FR357403A FR 357403 A FR357403 A FR 357403A FR 357403 A FR357403 A FR 357403A FR 357403D A FR357403D A FR 357403DA FR 357403 A FR357403 A FR 357403A
Authority
FR
France
Prior art keywords
drilling
drill bit
double eccentric
eccentric drill
double
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
FR357403A
Other languages
English (en)
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.)
Tiefbohr Maschinen & Werkzeuge
Original Assignee
Tiefbohr Maschinen & Werkzeuge
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 Tiefbohr Maschinen & Werkzeuge filed Critical Tiefbohr Maschinen & Werkzeuge
Application granted granted Critical
Publication of FR357403A publication Critical patent/FR357403A/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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/265—Bi-center drill bits, i.e. an integral bit and eccentric reamer used to simultaneously drill and underream the hole

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)
FR357403A 1905-08-12 1905-08-12 Fleuret double excentré pour forages Expired FR357403A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR357403T 1905-08-12

Publications (1)

Publication Number Publication Date
FR357403A true FR357403A (fr) 1905-12-27

Family

ID=1405307

Family Applications (1)

Application Number Title Priority Date Filing Date
FR357403A Expired FR357403A (fr) 1905-08-12 1905-08-12 Fleuret double excentré pour forages

Country Status (1)

Country Link
FR (1) FR357403A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002042014A1 (fr) * 2000-11-22 2002-05-30 Lueken Gisela Tete d'alesage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002042014A1 (fr) * 2000-11-22 2002-05-30 Lueken Gisela Tete d'alesage
US6932170B2 (en) 2000-11-22 2005-08-23 Ute Petra Luth Drilling head

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