FR2200434B1 - - Google Patents

Info

Publication number
FR2200434B1
FR2200434B1 FR7334065A FR7334065A FR2200434B1 FR 2200434 B1 FR2200434 B1 FR 2200434B1 FR 7334065 A FR7334065 A FR 7334065A FR 7334065 A FR7334065 A FR 7334065A FR 2200434 B1 FR2200434 B1 FR 2200434B1
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.)
Expired
Application number
FR7334065A
Other languages
French (fr)
Other versions
FR2200434A1 (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.)
Vereinigte Edelstahlwerke AG
Original Assignee
Vereinigte Edelstahlwerke 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 Vereinigte Edelstahlwerke AG filed Critical Vereinigte Edelstahlwerke AG
Publication of FR2200434A1 publication Critical patent/FR2200434A1/fr
Application granted granted Critical
Publication of FR2200434B1 publication Critical patent/FR2200434B1/fr
Granted 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers
    • 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
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
    • 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
    • E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
    • E21B17/076—Telescoping joints for varying drill string lengths; Shock absorbers between rod or pipe and drill bit

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)
  • Earth Drilling (AREA)
  • Percussive Tools And Related Accessories (AREA)
FR7334065A 1972-09-27 1973-09-24 Pneumatic percussion drill hammer - with grooves as air vent channels on same side of hammer Granted FR2200434A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT829272A AT323100B (de) 1972-09-27 1972-09-27 Versenkhammer

Publications (2)

Publication Number Publication Date
FR2200434A1 FR2200434A1 (en) 1974-04-19
FR2200434B1 true FR2200434B1 (enrdf_load_stackoverflow) 1977-08-12

Family

ID=3604172

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7334065A Granted FR2200434A1 (en) 1972-09-27 1973-09-24 Pneumatic percussion drill hammer - with grooves as air vent channels on same side of hammer

Country Status (5)

Country Link
AT (1) AT323100B (enrdf_load_stackoverflow)
BE (1) BE805348A (enrdf_load_stackoverflow)
DE (1) DE2343082B2 (enrdf_load_stackoverflow)
FR (1) FR2200434A1 (enrdf_load_stackoverflow)
IT (1) IT994321B (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA7891B (en) * 1978-01-06 1979-08-29 Boart Int Ltd Down-the-hole drilling
FR2424408A1 (fr) * 1978-04-24 1979-11-23 Stenuick Freres Taillant de perforation pour marteau pneumatique fond-de-trou

Also Published As

Publication number Publication date
AT323100B (de) 1975-06-25
BE805348A (fr) 1974-01-16
DE2343082B2 (de) 1980-04-24
FR2200434A1 (en) 1974-04-19
IT994321B (it) 1975-10-20
DE2343082A1 (de) 1974-04-04

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Legal Events

Date Code Title Description
ST Notification of lapse