DK363976A - DRILL CROWNS - Google Patents

DRILL CROWNS

Info

Publication number
DK363976A
DK363976A DK363976A DK363976A DK363976A DK 363976 A DK363976 A DK 363976A DK 363976 A DK363976 A DK 363976A DK 363976 A DK363976 A DK 363976A DK 363976 A DK363976 A DK 363976A
Authority
DK
Denmark
Prior art keywords
drill crowns
crowns
drill
Prior art date
Application number
DK363976A
Other languages
Danish (da)
Inventor
H W Murdoch
Original Assignee
Reed 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
Priority claimed from US05/604,264 external-priority patent/US3990751A/en
Application filed by Reed Tool Co filed Critical Reed Tool Co
Publication of DK363976A publication Critical patent/DK363976A/en

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
    • E21B10/22—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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
    • F16C17/18—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with floating brasses or brushing, rotatable at a reduced speed
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
    • F16C33/122—Multilayer structures of sleeves, washers or liners
    • 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)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Physics & Mathematics (AREA)
  • Earth Drilling (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
DK363976A 1975-08-13 1976-08-12 DRILL CROWNS DK363976A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/604,264 US3990751A (en) 1975-08-13 1975-08-13 Drill bit
US05/695,505 US4074922A (en) 1975-08-13 1976-06-11 Drill bit

Publications (1)

Publication Number Publication Date
DK363976A true DK363976A (en) 1977-02-14

Family

ID=27084622

Family Applications (1)

Application Number Title Priority Date Filing Date
DK363976A DK363976A (en) 1975-08-13 1976-08-12 DRILL CROWNS

Country Status (16)

Country Link
JP (1) JPS5222501A (en)
AT (1) AT352052B (en)
AU (1) AU502035B2 (en)
BR (1) BR7605280A (en)
CA (1) CA1039266A (en)
CH (1) CH610982A5 (en)
DE (1) DE2636179A1 (en)
DK (1) DK363976A (en)
ES (1) ES450637A1 (en)
FR (1) FR2321034A1 (en)
GB (1) GB1521833A (en)
IT (1) IT1073442B (en)
MX (1) MX143147A (en)
NL (1) NL7608964A (en)
NO (1) NO762541L (en)
SE (1) SE7609015L (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4402617A (en) * 1981-05-12 1983-09-06 Dresser Industries, Inc. Thin wall sintered bushing for a rock bit
DE3207237C2 (en) * 1982-02-25 1984-06-07 Mannesmann AG, 4000 Düsseldorf Threaded connection for oilfield pipes
GB2127071B (en) * 1982-09-22 1985-09-18 Reed Rock Bit Co Friction bearing assembly for a roller cutter drill bit
DE3429897C2 (en) * 1984-08-14 1991-07-18 Maho Werkzeugmaschinenbau Babel & Co, 8962 Pfronten Adjustable straight line for machine tools in particular
JPH0533453Y2 (en) * 1989-05-30 1993-08-25
US5016719A (en) * 1990-01-24 1991-05-21 Western Rock Bit Company Limited Rotary cone type rock bits
CA2009987A1 (en) * 1990-02-14 1991-08-14 Kenneth M. White Journal bearing type rock bit

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2465329A (en) * 1944-05-20 1949-03-22 Indium Corp America Indium treated copper clad bearing and like articles and method of making the same
US3150901A (en) * 1961-11-17 1964-09-29 Gen Electric Bearing surfaces
US3235316A (en) * 1963-04-22 1966-02-15 Hughes Tool Co Journal bearing with alternating surface areas of wear resistant and antigalling materials
US3784264A (en) * 1971-03-02 1974-01-08 Dresser Ind Earth boring bit bearing system having a pitted bearing surface
US3721307A (en) * 1971-04-27 1973-03-20 Murphy Ind Inc Drill bit bearings
FR2182287A5 (en) * 1972-04-25 1973-12-07 Creusot Loire
US3984158A (en) * 1973-09-10 1976-10-05 Dresser Industries, Inc. Journal and pilot bearings with alternating surface areas of wear resistant and anti-galling materials
US3866987A (en) * 1974-01-14 1975-02-18 Smith International Drill bit with laminated friction bearing
FR2300931A1 (en) * 1975-02-14 1976-09-10 Creusot Loire Antiseizure plain bearings - particularly with double bearing surface in rotary drilling bits

Also Published As

Publication number Publication date
AU1680476A (en) 1978-02-16
MX143147A (en) 1981-03-25
FR2321034A1 (en) 1977-03-11
JPS5222501A (en) 1977-02-19
NO762541L (en) 1977-02-15
CA1039266A (en) 1978-09-26
NL7608964A (en) 1977-02-15
CH610982A5 (en) 1979-05-15
ATA601176A (en) 1979-02-15
AU502035B2 (en) 1979-07-12
DE2636179A1 (en) 1977-02-24
GB1521833A (en) 1978-08-16
FR2321034B1 (en) 1982-10-29
IT1073442B (en) 1985-04-17
BR7605280A (en) 1977-08-09
ES450637A1 (en) 1977-07-16
SE7609015L (en) 1977-02-14
AT352052B (en) 1979-08-27

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Legal Events

Date Code Title Description
AHS Application shelved for other reasons than non-payment