SE392498B - Skeraggregat for en borrspets - Google Patents

Skeraggregat for en borrspets

Info

Publication number
SE392498B
SE392498B SE7207813A SE781372A SE392498B SE 392498 B SE392498 B SE 392498B SE 7207813 A SE7207813 A SE 7207813A SE 781372 A SE781372 A SE 781372A SE 392498 B SE392498 B SE 392498B
Authority
SE
Sweden
Prior art keywords
cutting unit
drill tip
drill
tip
cutting
Prior art date
Application number
SE7207813A
Other languages
English (en)
Swedish (sv)
Inventor
D B Justman
Original Assignee
Murphy Ind Inc G W
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 Murphy Ind Inc G W filed Critical Murphy Ind Inc G W
Publication of SE392498B publication Critical patent/SE392498B/xx

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
    • E21B10/08—Roller bits
    • E21B10/10—Roller bits with roller axle supported at both ends

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)
SE7207813A 1972-02-09 1972-06-14 Skeraggregat for en borrspets SE392498B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22482572A 1972-02-09 1972-02-09

Publications (1)

Publication Number Publication Date
SE392498B true SE392498B (sv) 1977-03-28

Family

ID=22842380

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7207813A SE392498B (sv) 1972-02-09 1972-06-14 Skeraggregat for en borrspets

Country Status (6)

Country Link
US (1) US3747999A (en, 2012)
JP (1) JPS5526270B2 (en, 2012)
CA (1) CA964678A (en, 2012)
DE (1) DE2251770C2 (en, 2012)
SE (1) SE392498B (en, 2012)
ZA (1) ZA724119B (en, 2012)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE415994B (sv) * 1975-01-27 1980-11-17 Sandvik Ab Anordning vid rullborrkronor
US4089382A (en) * 1977-04-04 1978-05-16 Hughes Tool Company Cutter mounting for a large hole earth boring bit
US4241799A (en) * 1979-10-17 1980-12-30 Hughes Tool Company Protected cutter mounting for drill bits
US4760890A (en) * 1987-05-18 1988-08-02 Tamrock Inc. Cutter assembly for rotary boring of earth
DE4202078C2 (de) * 1992-01-25 1997-05-28 Audi Ag Lageranordnung
CN114837558A (zh) * 2022-05-27 2022-08-02 重庆交通大学 一种基于凿岩台车的异形孔定向开槽刀头套具

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1444074A (en) * 1922-04-20 1923-02-06 Hughes Tool Co Cross-roller drill
US3601207A (en) * 1969-05-19 1971-08-24 Lawrence Mfg Co Cutter assembly

Also Published As

Publication number Publication date
JPS4888703A (en, 2012) 1973-11-20
DE2251770C2 (de) 1982-04-15
DE2251770A1 (de) 1973-08-16
CA964678A (en) 1975-03-18
ZA724119B (en) 1973-03-28
US3747999A (en) 1973-07-24
JPS5526270B2 (en, 2012) 1980-07-11

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