GB2307930A - Drill bit - Google Patents

Drill bit Download PDF

Info

Publication number
GB2307930A
GB2307930A GB9624641A GB9624641A GB2307930A GB 2307930 A GB2307930 A GB 2307930A GB 9624641 A GB9624641 A GB 9624641A GB 9624641 A GB9624641 A GB 9624641A GB 2307930 A GB2307930 A GB 2307930A
Authority
GB
United Kingdom
Prior art keywords
drill bit
adapter rod
cone
outer cone
bit according
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Withdrawn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
GB9624641A
Other languages
English (en)
Other versions
GB9624641D0 (en
Inventor
Bernd Kessler
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.)
Drebo Werkzeugfabrik GmbH
Original Assignee
Drebo Werkzeugfabrik GmbH
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 Drebo Werkzeugfabrik GmbH filed Critical Drebo Werkzeugfabrik GmbH
Publication of GB9624641D0 publication Critical patent/GB9624641D0/en
Publication of GB2307930A publication Critical patent/GB2307930A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B23B51/0473—Details about the connection between the driven shaft and the tubular cutting part; Arbors
    • 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)
  • 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)
  • Drilling Tools (AREA)
GB9624641A 1995-12-08 1996-11-27 Drill bit Withdrawn GB2307930A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29519484U DE29519484U1 (de) 1995-12-08 1995-12-08 Bohrer

Publications (2)

Publication Number Publication Date
GB9624641D0 GB9624641D0 (en) 1997-01-15
GB2307930A true GB2307930A (en) 1997-06-11

Family

ID=8016461

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9624641A Withdrawn GB2307930A (en) 1995-12-08 1996-11-27 Drill bit

Country Status (2)

Country Link
DE (1) DE29519484U1 (de)
GB (1) GB2307930A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160067794A1 (en) * 2013-05-03 2016-03-10 Boorwerk B.V. Quick change system for rotary tools
EP3978719A1 (de) * 2020-09-30 2022-04-06 Sandvik Mining and Construction Tools AB Spannungsarmer hohlraumausgang für konisch verbundenen bohrmeissel
EP3978720A1 (de) * 2020-09-30 2022-04-06 Sandvik Mining and Construction Tools AB Spannungsarmer hohlraum zur konischen verbindung von bohrern

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854840A (en) * 1973-12-01 1974-12-17 M Miyanaga Core drill
US4671703A (en) * 1983-07-21 1987-06-09 Paul Schmidt Apparatus for driving pipes through the ground

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854840A (en) * 1973-12-01 1974-12-17 M Miyanaga Core drill
US4671703A (en) * 1983-07-21 1987-06-09 Paul Schmidt Apparatus for driving pipes through the ground

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160067794A1 (en) * 2013-05-03 2016-03-10 Boorwerk B.V. Quick change system for rotary tools
US10035197B2 (en) * 2013-05-03 2018-07-31 Boorwerk B.V. Quick change system for rotary tools
EP3978719A1 (de) * 2020-09-30 2022-04-06 Sandvik Mining and Construction Tools AB Spannungsarmer hohlraumausgang für konisch verbundenen bohrmeissel
EP3978720A1 (de) * 2020-09-30 2022-04-06 Sandvik Mining and Construction Tools AB Spannungsarmer hohlraum zur konischen verbindung von bohrern
WO2022069652A1 (en) * 2020-09-30 2022-04-07 Sandvik Mining And Construction Tools Ab Low stress cavity exit for conically connecting drill bit
WO2022069653A1 (en) * 2020-09-30 2022-04-07 Sandvik Mining And Construction Tools Ab Low stress cavity for conically connecting drill bits

Also Published As

Publication number Publication date
DE29519484U1 (de) 1996-01-25
GB9624641D0 (en) 1997-01-15

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)