FR855206A - Fleuret à percussion pour forage de roches ou autres corps - Google Patents

Fleuret à percussion pour forage de roches ou autres corps

Info

Publication number
FR855206A
FR855206A FR855206DA FR855206A FR 855206 A FR855206 A FR 855206A FR 855206D A FR855206D A FR 855206DA FR 855206 A FR855206 A FR 855206A
Authority
FR
France
Prior art keywords
bodies
drill bit
percussion drill
drilling rocks
rocks
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
Erhard Bertl
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 FR855206A publication Critical patent/FR855206A/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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58—Chisel-type inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
FR855206D 1939-05-24 1939-05-24 Fleuret à percussion pour forage de roches ou autres corps Expired FR855206A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR855206T 1939-05-24

Publications (1)

Publication Number Publication Date
FR855206A true FR855206A (fr) 1940-05-06

Family

ID=9328147

Family Applications (1)

Application Number Title Priority Date Filing Date
FR855206D Expired FR855206A (fr) 1939-05-24 1939-05-24 Fleuret à percussion pour forage de roches ou autres corps

Country Status (1)

Country Link
FR (1) FR855206A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE912202C (de) * 1941-06-15 1954-05-28 Boehler & Co Ag Geb Gesteinsbohrer oder Bohrkrone mit Hartmetallschneiden
DE918741C (de) * 1949-09-03 1954-10-04 Boehler & Co Ag Geb Gesteinsbohrer mit Einfach- oder Mehrfachschneiden

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE912202C (de) * 1941-06-15 1954-05-28 Boehler & Co Ag Geb Gesteinsbohrer oder Bohrkrone mit Hartmetallschneiden
DE918741C (de) * 1949-09-03 1954-10-04 Boehler & Co Ag Geb Gesteinsbohrer mit Einfach- oder Mehrfachschneiden

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