FR799510A - Foret à mèche amovible - Google Patents

Foret à mèche amovible

Info

Publication number
FR799510A
FR799510A FR799510DA FR799510A FR 799510 A FR799510 A FR 799510A FR 799510D A FR799510D A FR 799510DA FR 799510 A FR799510 A FR 799510A
Authority
FR
France
Prior art keywords
bit drill
removable bit
removable
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
Other languages
English (en)
Inventor
Harry Charles Norley
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 filed Critical
Application granted granted Critical
Publication of FR799510A publication Critical patent/FR799510A/fr
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
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches

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)
  • Drilling Tools (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Emergency Lowering Means (AREA)
FR799510D 1935-07-17 1935-12-11 Foret à mèche amovible Expired FR799510A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA452694X 1935-07-17
US33350A US2030530A (en) 1935-07-17 1935-07-26 Drill

Publications (1)

Publication Number Publication Date
FR799510A true FR799510A (fr) 1936-06-15

Family

ID=21869896

Family Applications (1)

Application Number Title Priority Date Filing Date
FR799510D Expired FR799510A (fr) 1935-07-17 1935-12-11 Foret à mèche amovible

Country Status (3)

Country Link
US (1) US2030530A (fr)
FR (1) FR799510A (fr)
GB (1) GB452694A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4190128A (en) * 1978-12-21 1980-02-26 Fansteel Inc. Roof drill bit with hexagonal body portion

Also Published As

Publication number Publication date
GB452694A (en) 1936-08-27
US2030530A (en) 1936-02-11

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