CA923114A - Drill bit - Google Patents

Drill bit

Info

Publication number
CA923114A
CA923114A CA073245A CA73245A CA923114A CA 923114 A CA923114 A CA 923114A CA 073245 A CA073245 A CA 073245A CA 73245 A CA73245 A CA 73245A CA 923114 A CA923114 A CA 923114A
Authority
CA
Canada
Prior art keywords
drill bit
drill
bit
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA073245A
Inventor
Percy W. Schumacher, Jr.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GW Murphy Industries Inc
Original Assignee
GW Murphy Industries Inc
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 GW Murphy Industries Inc filed Critical GW Murphy Industries Inc
Application granted granted Critical
Publication of CA923114A publication Critical patent/CA923114A/en
Expired legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Drilling And Boring (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
CA073245A 1969-03-28 1970-01-27 Drill bit Expired CA923114A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81134169A 1969-03-28 1969-03-28

Publications (1)

Publication Number Publication Date
CA923114A true CA923114A (en) 1973-03-20

Family

ID=25206289

Family Applications (1)

Application Number Title Priority Date Filing Date
CA073245A Expired CA923114A (en) 1969-03-28 1970-01-27 Drill bit

Country Status (8)

Country Link
JP (1) JPS5017001B1 (en)
AU (1) AU1090970A (en)
CA (1) CA923114A (en)
CH (1) CH541712A (en)
DE (1) DE2007636A1 (en)
GB (1) GB1282226A (en)
IE (1) IE33960B1 (en)
SE (1) SE361189B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE506806C2 (en) * 1995-02-14 1998-02-16 Sandvik Ab Cutting roller for a drill head and method of loading lubricant into a cutting roller
WO2024131687A1 (en) * 2022-12-22 2024-06-27 中国石油化工股份有限公司 Pdc-roller hybrid drill bit

Also Published As

Publication number Publication date
IE33960B1 (en) 1974-12-30
CH541712A (en) 1973-09-15
AU1090970A (en) 1971-08-05
IE33960L (en) 1970-09-28
JPS5017001B1 (en) 1975-06-18
DE2007636A1 (en) 1970-10-08
GB1282226A (en) 1972-07-19
SE361189B (en) 1973-10-22

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