NL149577B - Leger. - Google Patents

Leger.

Info

Publication number
NL149577B
NL149577B NL676710541A NL6710541A NL149577B NL 149577 B NL149577 B NL 149577B NL 676710541 A NL676710541 A NL 676710541A NL 6710541 A NL6710541 A NL 6710541A NL 149577 B NL149577 B NL 149577B
Authority
NL
Netherlands
Prior art keywords
army
Prior art date
Application number
NL676710541A
Other languages
English (en)
Other versions
NL6710541A (nl
Original Assignee
Smith Ind International
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 Smith Ind International filed Critical Smith Ind International
Publication of NL6710541A publication Critical patent/NL6710541A/xx
Publication of NL149577B publication Critical patent/NL149577B/nl

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
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • F16C17/03—Sliding-contact bearings for exclusively rotary movement for radial load only with tiltably-supported segments, e.g. Michell 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)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
NL676710541A 1967-03-23 1967-07-31 Leger. NL149577B (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US62538967A 1967-03-23 1967-03-23
US84058669A 1969-06-13 1969-06-13

Publications (2)

Publication Number Publication Date
NL6710541A NL6710541A (nl) 1968-09-24
NL149577B true NL149577B (nl) 1976-05-17

Family

ID=34798964

Family Applications (1)

Application Number Title Priority Date Filing Date
NL676710541A NL149577B (nl) 1967-03-23 1967-07-31 Leger.

Country Status (2)

Country Link
US (1) US3549214A (nl)
NL (1) NL149577B (nl)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3620580A (en) * 1970-08-03 1971-11-16 Hughes Tool Co Rock drill with increased bearing life
USRE28625E (en) * 1970-08-03 1975-11-25 Rock drill with increased bearing life
US4240674A (en) * 1979-11-19 1980-12-23 Evans Robert F Positive lubricating and indexing bearing assembly
US4666001A (en) * 1983-10-17 1987-05-19 Hughes Tool Company - Usa Earth boring bit with improved rigid face seal assembly
DE3687798T2 (de) * 1986-05-19 1993-08-05 Smith International Kuehlnetzwerke fuer lagerflaechen aus polykristallinem diamant.
US9297411B2 (en) * 2011-05-26 2016-03-29 Us Synthetic Corporation Bearing assemblies, apparatuses, and motor assemblies using the same
US8668388B1 (en) 2011-11-29 2014-03-11 Us Synthetic Corporation Bearing assemblies, apparatuses, and motor assemblies using the same
EP3688328A4 (en) 2017-09-28 2021-06-30 Saint-Gobain Performance Plastics Corporation ASSEMBLY FOR BEARING AND METHODS OF MANUFACTURING AND USING THE SAME

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1760317A (en) * 1927-03-03 1930-05-27 Rowland O Pickin Drill bit
US2526587A (en) * 1946-07-23 1950-10-17 Francis H Bell Antifriction bearing
US2680259A (en) * 1951-06-04 1954-06-08 Merriman Bros Inc Self-lubricating bearing for heavy loads
US2683637A (en) * 1952-03-15 1954-07-13 O & S Bearing Company Compound bearing
US3235316A (en) * 1963-04-22 1966-02-15 Hughes Tool Co Journal bearing with alternating surface areas of wear resistant and antigalling materials
US3421799A (en) * 1967-05-10 1969-01-14 Skf Ind Inc Elastohydrodynamic sliding bearings

Also Published As

Publication number Publication date
NL6710541A (nl) 1968-09-24
US3549214A (en) 1970-12-22

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Legal Events

Date Code Title Description
VJC Lapsed due to non-payment of the due maintenance fee for the patent or patent application
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: SMITH IND