NL7809267A - Grondboorbeitel met snapsnijkopretentie. - Google Patents

Grondboorbeitel met snapsnijkopretentie.

Info

Publication number
NL7809267A
NL7809267A NL7809267A NL7809267A NL7809267A NL 7809267 A NL7809267 A NL 7809267A NL 7809267 A NL7809267 A NL 7809267A NL 7809267 A NL7809267 A NL 7809267A NL 7809267 A NL7809267 A NL 7809267A
Authority
NL
Netherlands
Prior art keywords
cutting head
ground drilling
head retention
drilling chisel
snap cutting
Prior art date
Application number
NL7809267A
Other languages
English (en)
Dutch (nl)
Original Assignee
Hughes Tool 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 Hughes Tool Co filed Critical Hughes Tool Co
Publication of NL7809267A publication Critical patent/NL7809267A/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
    • E21B10/20—Roller bits characterised by detachable or adjustable parts, e.g. legs or axles
    • 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
    • E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C43/00—Assembling bearings
    • F16C43/02—Assembling sliding-contact bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2352/00—Apparatus for drilling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Sliding-Contact Bearings (AREA)
NL7809267A 1977-10-28 1978-09-12 Grondboorbeitel met snapsnijkopretentie. NL7809267A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US84664277A 1977-10-28 1977-10-28

Publications (1)

Publication Number Publication Date
NL7809267A true NL7809267A (nl) 1979-05-02

Family

ID=25298509

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7809267A NL7809267A (nl) 1977-10-28 1978-09-12 Grondboorbeitel met snapsnijkopretentie.

Country Status (7)

Country Link
JP (1) JPS5471702A (enrdf_load_stackoverflow)
BR (1) BR7804960A (enrdf_load_stackoverflow)
CA (1) CA1096851A (enrdf_load_stackoverflow)
FR (1) FR2407333A1 (enrdf_load_stackoverflow)
GB (1) GB1599377A (enrdf_load_stackoverflow)
MX (1) MX148805A (enrdf_load_stackoverflow)
NL (1) NL7809267A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4577705A (en) * 1984-04-23 1986-03-25 Smith International, Inc. Bellows lubricant pressurizer for sealed bearing rock bits

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4577705A (en) * 1984-04-23 1986-03-25 Smith International, Inc. Bellows lubricant pressurizer for sealed bearing rock bits

Also Published As

Publication number Publication date
BR7804960A (pt) 1979-05-29
GB1599377A (en) 1981-09-30
CA1096851A (en) 1981-03-03
MX148805A (es) 1983-06-22
FR2407333A1 (fr) 1979-05-25
JPS5471702A (en) 1979-06-08
JPS6128076B2 (enrdf_load_stackoverflow) 1986-06-28

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Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
BV The patent application has lapsed