NL7904731A - Grondboorbeitel met excentrisch bewerkte draagpen. - Google Patents

Grondboorbeitel met excentrisch bewerkte draagpen. Download PDF

Info

Publication number
NL7904731A
NL7904731A NL7904731A NL7904731A NL7904731A NL 7904731 A NL7904731 A NL 7904731A NL 7904731 A NL7904731 A NL 7904731A NL 7904731 A NL7904731 A NL 7904731A NL 7904731 A NL7904731 A NL 7904731A
Authority
NL
Netherlands
Prior art keywords
chisel
support pin
bit
roller
pin
Prior art date
Application number
NL7904731A
Other languages
English (en)
Dutch (nl)
Original Assignee
Dresser Ind
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 Dresser Ind filed Critical Dresser Ind
Publication of NL7904731A publication Critical patent/NL7904731A/nl

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/08Roller bits
    • E21B10/22Roller bits characterised by bearing, lubrication or sealing details
    • E21B10/25Roller bits characterised by bearing, lubrication or sealing details characterised by sealing details
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/08Roller bits
    • E21B10/22Roller bits characterised by bearing, lubrication or sealing details

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Saccharide Compounds (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
NL7904731A 1978-07-24 1979-06-18 Grondboorbeitel met excentrisch bewerkte draagpen. NL7904731A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US92769678A 1978-07-24 1978-07-24
US92769678 1978-07-24

Publications (1)

Publication Number Publication Date
NL7904731A true NL7904731A (nl) 1980-01-28

Family

ID=25455101

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7904731A NL7904731A (nl) 1978-07-24 1979-06-18 Grondboorbeitel met excentrisch bewerkte draagpen.

Country Status (10)

Country Link
JP (1) JPS5519400A (fr)
CA (1) CA1095505A (fr)
DE (1) DE2929568A1 (fr)
FR (1) FR2441048A1 (fr)
GB (1) GB2026576B (fr)
IT (1) IT1117791B (fr)
MX (1) MX150790A (fr)
NL (1) NL7904731A (fr)
NO (1) NO791605L (fr)
PL (1) PL120433B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8002813L (sv) * 1980-04-15 1981-10-16 Sandvik Ab Lageranordning vid roterande borrkronor
US7086487B2 (en) 2002-07-01 2006-08-08 Baker Hughes Incorporated Anti-mud packing seal gland
CN109026009B (zh) * 2018-10-17 2023-11-21 中南大学 一种海底矿产资源富钴结壳的采掘头

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE673486A (fr) *
US3384426A (en) * 1965-05-14 1968-05-21 Reed Roller Bit Co Contoured race for roller bearings
FR1459030A (fr) * 1965-08-17 1966-04-29 Hughes Tool Co Système de palier, notamment pour trépans
US3746405A (en) * 1971-11-18 1973-07-17 Globe Oil Tools Co Well drilling bit lubrication and seal
US3890018A (en) * 1974-07-19 1975-06-17 Dresser Ind Rotary rock bit with wiper pad lubrication system
US4061376A (en) * 1976-06-14 1977-12-06 Smith International Inc. Rock bit bearing structure

Also Published As

Publication number Publication date
GB2026576A (en) 1980-02-06
DE2929568A1 (de) 1980-02-07
PL217220A1 (fr) 1980-04-08
PL120433B1 (en) 1982-02-27
FR2441048A1 (fr) 1980-06-06
GB2026576B (en) 1982-12-15
IT1117791B (it) 1986-02-24
IT7949664A0 (it) 1979-07-05
JPS5519400A (en) 1980-02-12
CA1095505A (fr) 1981-02-10
NO791605L (no) 1980-01-25
MX150790A (es) 1984-07-19

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Legal Events

Date Code Title Description
BV The patent application has lapsed