DE2423511A1 - Bohrer mit foerderwendel - Google Patents

Bohrer mit foerderwendel

Info

Publication number
DE2423511A1
DE2423511A1 DE19742423511 DE2423511A DE2423511A1 DE 2423511 A1 DE2423511 A1 DE 2423511A1 DE 19742423511 DE19742423511 DE 19742423511 DE 2423511 A DE2423511 A DE 2423511A DE 2423511 A1 DE2423511 A1 DE 2423511A1
Authority
DE
Germany
Prior art keywords
hard metal
metal pins
drill
drill head
pins
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.)
Withdrawn
Application number
DE19742423511
Other languages
German (de)
English (en)
Inventor
Hartwig Pietsch
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
Priority to DE19742423511 priority Critical patent/DE2423511A1/de
Priority to FR7514788A priority patent/FR2271001A1/fr
Publication of DE2423511A1 publication Critical patent/DE2423511A1/de
Withdrawn legal-status Critical Current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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts
    • 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)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)
DE19742423511 1974-05-15 1974-05-15 Bohrer mit foerderwendel Withdrawn DE2423511A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19742423511 DE2423511A1 (de) 1974-05-15 1974-05-15 Bohrer mit foerderwendel
FR7514788A FR2271001A1 (en) 1974-05-15 1975-05-13 Powered concrete drill with shaft groove - cutting face studs of hardmetal angled at rim, cone tipped

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742423511 DE2423511A1 (de) 1974-05-15 1974-05-15 Bohrer mit foerderwendel

Publications (1)

Publication Number Publication Date
DE2423511A1 true DE2423511A1 (de) 1975-11-27

Family

ID=5915594

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19742423511 Withdrawn DE2423511A1 (de) 1974-05-15 1974-05-15 Bohrer mit foerderwendel

Country Status (2)

Country Link
DE (1) DE2423511A1 (US20050065096A1-20050324-C00034.png)
FR (1) FR2271001A1 (US20050065096A1-20050324-C00034.png)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3540355A1 (de) * 1985-11-14 1987-05-21 Duss Maschf Bohrer zum drehschlagenden bohren
DE3919264A1 (de) * 1989-06-13 1990-12-20 Duss Maschf Drehschlagbohrer fuer ein von hand fuehrbares bohrgeraet
CN103538153A (zh) * 2012-07-10 2014-01-29 罗伯特·博世有限公司 动力头

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3540355A1 (de) * 1985-11-14 1987-05-21 Duss Maschf Bohrer zum drehschlagenden bohren
DE3919264A1 (de) * 1989-06-13 1990-12-20 Duss Maschf Drehschlagbohrer fuer ein von hand fuehrbares bohrgeraet
CN103538153A (zh) * 2012-07-10 2014-01-29 罗伯特·博世有限公司 动力头

Also Published As

Publication number Publication date
FR2271001A1 (en) 1975-12-12
FR2271001B1 (US20050065096A1-20050324-C00034.png) 1979-03-30

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Legal Events

Date Code Title Description
8141 Disposal/no request for examination