GB8322798D0 - Two-piece drill bit - Google Patents

Two-piece drill bit

Info

Publication number
GB8322798D0
GB8322798D0 GB838322798A GB8322798A GB8322798D0 GB 8322798 D0 GB8322798 D0 GB 8322798D0 GB 838322798 A GB838322798 A GB 838322798A GB 8322798 A GB8322798 A GB 8322798A GB 8322798 D0 GB8322798 D0 GB 8322798D0
Authority
GB
United Kingdom
Prior art keywords
drill bit
piece drill
piece
bit
drill
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Withdrawn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
GB838322798A
Other versions
GB2127463A (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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Publication of GB8322798D0 publication Critical patent/GB8322798D0/en
Publication of GB2127463A publication Critical patent/GB2127463A/en
Withdrawn legal-status Critical Current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
    • 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
    • E21B17/042—Threaded
    • E21B17/0426—Threaded with a threaded cylindrical portion, e.g. for percussion rods

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)
GB08322798A 1982-08-30 1983-08-24 Two-piece drill bit Withdrawn GB2127463A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US41254382A 1982-08-30 1982-08-30

Publications (2)

Publication Number Publication Date
GB8322798D0 true GB8322798D0 (en) 1983-09-28
GB2127463A GB2127463A (en) 1984-04-11

Family

ID=23633423

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08322798A Withdrawn GB2127463A (en) 1982-08-30 1983-08-24 Two-piece drill bit

Country Status (5)

Country Link
JP (1) JPS5976394A (en)
BR (1) BR8304683A (en)
DE (1) DE3330025A1 (en)
GB (1) GB2127463A (en)
SE (1) SE8304638L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109162648A (en) * 2018-09-12 2019-01-08 成都希能能源科技有限公司 A kind of chance card buries the drill bit that can give up

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4540056A (en) * 1984-05-03 1985-09-10 Inco Limited Cutter assembly
DE3819462C1 (en) * 1988-06-08 1990-05-23 Johannes 4130 Moers De Radtke Drilling head for making small-diameter and large-diameter boreholes
US4919221A (en) * 1989-04-06 1990-04-24 Numa Tool Company Impact drill bit assembly and replaceable parts thereof
DE3916505C1 (en) * 1989-05-20 1990-08-23 Johannes 4130 Moers De Radtke Drilling tool for producing large and small boreholes - includes bolts on replaceable holder in which there are nodular cutting inserts
DE3941609C1 (en) * 1989-12-16 1991-10-24 Johannes 4130 Moers De Radtke Boring head for mining - has head and shaft provided with fluid flushing channels and tapering surface on head
US5322139A (en) * 1993-07-28 1994-06-21 Rose James K Loose crown underreamer apparatus
DE19541163A1 (en) * 1995-11-04 1997-05-07 Hawera Probst Kg Hartmetall Drilling tool, in particular for processing stone
US6502650B1 (en) * 2000-11-15 2003-01-07 Sandvik Ab Percussive down-the-hole hammer for rock drilling, and a drill bit used therein
EP2238299A4 (en) 2008-01-08 2015-06-17 Esco Corp Tip for an earth working roll
JP5358492B2 (en) * 2009-09-08 2013-12-04 株式会社ジオ機材 Connection structure for hammering rod
AT509643B1 (en) 2010-04-07 2013-08-15 Dywidag Systems Int Gmbh TWO-PIECE DRILLING TOOL FOR HANDLING OR DRILLING HOLES IN FLOOR OR ROCK MATERIALS
EP4041980A1 (en) * 2019-10-11 2022-08-17 Sandvik Mining and Construction Tools AB Shoulder protected drilling assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109162648A (en) * 2018-09-12 2019-01-08 成都希能能源科技有限公司 A kind of chance card buries the drill bit that can give up

Also Published As

Publication number Publication date
GB2127463A (en) 1984-04-11
BR8304683A (en) 1984-04-10
SE8304638D0 (en) 1983-08-26
DE3330025A1 (en) 1984-03-01
SE8304638L (en) 1984-03-01
JPS5976394A (en) 1984-05-01

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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)