FR2242554A1 - - Google Patents

Info

Publication number
FR2242554A1
FR2242554A1 FR7429485A FR7429485A FR2242554A1 FR 2242554 A1 FR2242554 A1 FR 2242554A1 FR 7429485 A FR7429485 A FR 7429485A FR 7429485 A FR7429485 A FR 7429485A FR 2242554 A1 FR2242554 A1 FR 2242554A1
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
FR7429485A
Other versions
FR2242554B1 (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.)
Fried Krupp AG
Original Assignee
Fried Krupp AG
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 Fried Krupp AG filed Critical Fried Krupp AG
Publication of FR2242554A1 publication Critical patent/FR2242554A1/fr
Application granted granted Critical
Publication of FR2242554B1 publication Critical patent/FR2242554B1/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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042—Threaded
    • E21B17/0426—Threaded with a threaded cylindrical portion, e.g. for percussion rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B51/00—Tools for drilling machines
    • B23B51/04—Drills for trepanning
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (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)
  • Forging (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
FR7429485A 1973-08-30 1974-08-29 Expired FR2242554B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2343715A DE2343715C3 (de) 1973-08-30 1973-08-30 Drehbohrkopf

Publications (2)

Publication Number Publication Date
FR2242554A1 true FR2242554A1 (fr) 1975-03-28
FR2242554B1 FR2242554B1 (fr) 1978-04-28

Family

ID=5891108

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7429485A Expired FR2242554B1 (fr) 1973-08-30 1974-08-29

Country Status (5)

Country Link
CA (1) CA1025847A (fr)
DE (1) DE2343715C3 (fr)
FR (1) FR2242554B1 (fr)
GB (1) GB1470064A (fr)
LU (1) LU70811A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2088759B1 (es) * 1992-12-08 1998-08-01 Gkn Automotive Ag Articulacion giratoria sincronica
US6161633A (en) * 1998-02-03 2000-12-19 Cutting Edge Technology Apparatus for boring through a solid material
US6736226B2 (en) 1998-02-03 2004-05-18 Cutting Edge Technologies, Llc Method and apparatus for boring through a solid material
US6938961B2 (en) 2002-03-21 2005-09-06 Cutting Edge Technologies, Llc Apparatus for breaking up solid objects

Also Published As

Publication number Publication date
FR2242554B1 (fr) 1978-04-28
DE2343715A1 (de) 1975-03-13
GB1470064A (en) 1977-04-14
DE2343715B2 (de) 1980-04-17
DE2343715C3 (de) 1980-12-04
CA1025847A (fr) 1978-02-07
LU70811A1 (fr) 1975-01-02

Similar Documents

Publication Publication Date Title
AR201758A1 (fr)
AU465372B2 (fr)
AR201235Q (fr)
AR201231Q (fr)
AU474593B2 (fr)
AU474838B2 (fr)
AU465453B2 (fr)
AU465434B2 (fr)
AU450229B2 (fr)
AR201229Q (fr)
AU476696B2 (fr)
AU466283B2 (fr)
AR199451A1 (fr)
FR2242554B1 (fr)
AR196382A1 (fr)
AR200256A1 (fr)
AR197627A1 (fr)
AU447540B2 (fr)
AR210729A1 (fr)
AR195948A1 (fr)
AR201432A1 (fr)
AR195311A1 (fr)
AR193950A1 (fr)
AU461342B2 (fr)
AR200885A1 (fr)

Legal Events

Date Code Title Description
ST Notification of lapse