NL157380B - Steenboor. - Google Patents

Steenboor.

Info

Publication number
NL157380B
NL157380B NL6816579A NL6816579A NL157380B NL 157380 B NL157380 B NL 157380B NL 6816579 A NL6816579 A NL 6816579A NL 6816579 A NL6816579 A NL 6816579A NL 157380 B NL157380 B NL 157380B
Authority
NL
Netherlands
Prior art keywords
stone drill
drill
stone
Prior art date
Application number
NL6816579A
Other languages
English (en)
Other versions
NL6816579A (nl
Original Assignee
Duss Friedrich Fa
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 Duss Friedrich Fa filed Critical Duss Friedrich Fa
Publication of NL6816579A publication Critical patent/NL6816579A/xx
Publication of NL157380B publication Critical patent/NL157380B/nl

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
    • E21B17/22—Rods or pipes with helical structure
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
NL6816579A 1967-11-21 1968-11-20 Steenboor. NL157380B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1608358 1967-11-21

Publications (2)

Publication Number Publication Date
NL6816579A NL6816579A (nl) 1969-05-23
NL157380B true NL157380B (nl) 1978-07-17

Family

ID=5681528

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6816579A NL157380B (nl) 1967-11-21 1968-11-20 Steenboor.

Country Status (5)

Country Link
BE (1) BE724180A (nl)
CH (1) CH476559A (nl)
DE (1) DE1608358C3 (nl)
NL (1) NL157380B (nl)
SE (1) SE349771B (nl)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK152555C (da) * 1985-04-01 1988-08-01 Joran Bor A S Stenbor, isaer til hammerboremaskiner
DE3540355C2 (de) * 1985-11-14 1996-01-11 Duss Maschf Bohrer zum drehschlagenden Bohren
GB2393681A (en) 2002-10-03 2004-04-07 Black & Decker Inc Masonry drilling tool

Also Published As

Publication number Publication date
DE1608358B2 (nl) 1974-08-15
NL6816579A (nl) 1969-05-23
BE724180A (nl) 1969-05-02
CH476559A (de) 1969-08-15
DE1608358A1 (de) 1970-12-23
SE349771B (nl) 1972-10-09
DE1608358C3 (de) 1979-01-04

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: DUSS