GB1466036A - Rotary earth-cutting tools - Google Patents

Rotary earth-cutting tools

Info

Publication number
GB1466036A
GB1466036A GB472375A GB472375A GB1466036A GB 1466036 A GB1466036 A GB 1466036A GB 472375 A GB472375 A GB 472375A GB 472375 A GB472375 A GB 472375A GB 1466036 A GB1466036 A GB 1466036A
Authority
GB
United Kingdom
Prior art keywords
cutting members
cutting
members
feb
drill head
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.)
Expired
Application number
GB472375A
Other languages
English (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1466036A publication Critical patent/GB1466036A/en
Expired 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
    • E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
    • E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
    • 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58—Chisel-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
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids

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)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)
  • Drilling Tools (AREA)
GB472375A 1974-02-13 1975-02-04 Rotary earth-cutting tools Expired GB1466036A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44218174A 1974-02-13 1974-02-13

Publications (1)

Publication Number Publication Date
GB1466036A true GB1466036A (en) 1977-03-02

Family

ID=23755835

Family Applications (1)

Application Number Title Priority Date Filing Date
GB472375A Expired GB1466036A (en) 1974-02-13 1975-02-04 Rotary earth-cutting tools

Country Status (2)

Country Link
FR (1) FR2260687B1 (en, 2012)
GB (1) GB1466036A (en, 2012)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107288550A (zh) * 2017-08-18 2017-10-24 陕西隆极机械设备有限公司 适用于硬质岩土层的打桩成孔钻头
CN114876378A (zh) * 2022-04-30 2022-08-09 辽宁石油化工大学 一种新型片叠式钻头

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX144441A (es) * 1976-07-12 1981-10-15 Christensen Inc Broca mejorada para utilizarse en la perforacion de pozos
US4073354A (en) * 1976-11-26 1978-02-14 Christensen, Inc. Earth-boring drill bits
US4098363A (en) * 1977-04-25 1978-07-04 Christensen, Inc. Diamond drilling bit for soft and medium hard formations
FR2422478A1 (fr) * 1978-04-11 1979-11-09 Michelin & Cie Dispositif d'erosion comportant une tete avec des couteaux
FR2587630A1 (fr) * 1985-09-20 1987-03-27 Bourlier Manutention Outil desagregateur

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107288550A (zh) * 2017-08-18 2017-10-24 陕西隆极机械设备有限公司 适用于硬质岩土层的打桩成孔钻头
CN107288550B (zh) * 2017-08-18 2023-07-04 陕西圆极岩土科技发展有限公司 适用于硬质岩土层的打桩成孔钻头
CN114876378A (zh) * 2022-04-30 2022-08-09 辽宁石油化工大学 一种新型片叠式钻头

Also Published As

Publication number Publication date
FR2260687B1 (en, 2012) 1979-07-27
AU7809175A (en) 1976-08-12
FR2260687A1 (en, 2012) 1975-09-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee