NL7102712A - - Google Patents

Info

Publication number
NL7102712A
NL7102712A NL7102712A NL7102712A NL7102712A NL 7102712 A NL7102712 A NL 7102712A NL 7102712 A NL7102712 A NL 7102712A NL 7102712 A NL7102712 A NL 7102712A NL 7102712 A NL7102712 A NL 7102712A
Authority
NL
Netherlands
Application number
NL7102712A
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
Priority claimed from DE19702014870 external-priority patent/DE2014870A1/de
Priority claimed from DE19702041985 external-priority patent/DE2041985B1/en
Application filed filed Critical
Publication of NL7102712A publication Critical patent/NL7102712A/xx

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
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry
    • 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
    • E21B17/22—Rods or pipes with helical structure

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)
NL7102712A 1970-03-26 1971-03-01 NL7102712A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19702014870 DE2014870A1 (en) 1970-03-26 1970-03-26
DE19702041985 DE2041985B1 (en) 1970-08-25 1970-08-25 Rock drill

Publications (1)

Publication Number Publication Date
NL7102712A true NL7102712A (en) 1971-09-28

Family

ID=25758894

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7102712A NL7102712A (en) 1970-03-26 1971-03-01

Country Status (5)

Country Link
US (1) US3703214A (en)
CH (1) CH517244A (en)
DK (1) DK124183B (en)
FR (1) FR2083938A5 (en)
NL (1) NL7102712A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH626557A5 (en) * 1978-09-28 1981-11-30 Guex Philippe & Fils Sa
DE3014693A1 (en) * 1980-04-16 1981-10-22 Hilti AG, 9494 Schaan ROCK DRILL
DE3434633A1 (en) * 1984-09-21 1986-04-03 Eichner, Wolf D., Dr.jur., 8630 Coburg RECORDING CAMERA
DE3919095A1 (en) * 1988-07-16 1990-01-18 Hawera Probst Kg Hartmetall DRILLING TOOL
DE19702137A1 (en) * 1997-01-22 1998-07-23 Fundex N V Earth displacement drill
GB9725740D0 (en) * 1997-03-24 1998-02-04 Sibille Patrick Neil Apparatus and a method for use downhole

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1107927A (en) * 1914-01-06 1914-08-18 Heinrich Fuchs Ground-auger.
FR498546A (en) * 1915-04-06 1920-01-14 Frederic Guillierme Blasthole digging machine
US2572839A (en) * 1947-10-23 1951-10-30 Mcclinton John Combination key seat remover and vibration distributor for well drilling
DE1782509A1 (en) * 1968-09-11 1971-08-26 Mayer Kg Drill for the machine production of plant holes in flower pots or other containers

Also Published As

Publication number Publication date
CH517244A (en) 1971-12-31
FR2083938A5 (en) 1971-12-17
US3703214A (en) 1972-11-21
DK124183B (en) 1972-09-25

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