FR2225613A1 - - Google Patents

Info

Publication number
FR2225613A1
FR2225613A1 FR7409881A FR7409881A FR2225613A1 FR 2225613 A1 FR2225613 A1 FR 2225613A1 FR 7409881 A FR7409881 A FR 7409881A FR 7409881 A FR7409881 A FR 7409881A FR 2225613 A1 FR2225613 A1 FR 2225613A1
Authority
FR
France
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.)
Granted
Application number
FR7409881A
Other languages
French (fr)
Other versions
FR2225613B1 (en
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.)
Fried Krupp AG
Original Assignee
Fried Krupp AG
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 Fried Krupp AG filed Critical Fried Krupp AG
Publication of FR2225613A1 publication Critical patent/FR2225613A1/fr
Application granted granted Critical
Publication of FR2225613B1 publication Critical patent/FR2225613B1/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
    • 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
    • E21B10/56—Button-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)
  • Earth Drilling (AREA)
FR7409881A 1973-04-14 1974-03-22 Expired FR2225613B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732318928 DE2318928A1 (en) 1973-04-14 1973-04-14 IMPACT DRILL BIT

Publications (2)

Publication Number Publication Date
FR2225613A1 true FR2225613A1 (en) 1974-11-08
FR2225613B1 FR2225613B1 (en) 1977-10-07

Family

ID=5878113

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7409881A Expired FR2225613B1 (en) 1973-04-14 1974-03-22

Country Status (5)

Country Link
AT (1) AT329486B (en)
BE (1) BE812832A (en)
DE (1) DE2318928A1 (en)
FR (1) FR2225613B1 (en)
IT (1) IT1009747B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19811887A1 (en) * 1998-03-18 1999-09-23 Plica Werkzeugfabrik Ag Mollis Hammer drilling tool

Also Published As

Publication number Publication date
IT1009747B (en) 1976-12-20
AT329486B (en) 1976-05-10
FR2225613B1 (en) 1977-10-07
ATA261474A (en) 1975-08-15
BE812832A (en) 1974-07-15
DE2318928A1 (en) 1974-10-24

Similar Documents

Publication Publication Date Title
AR201758A1 (en)
AU476761B2 (en)
AU465372B2 (en)
AR201235Q (en)
AR201231Q (en)
AU474593B2 (en)
AU474511B2 (en)
AU474838B2 (en)
AU465453B2 (en)
AU471343B2 (en)
AU465434B2 (en)
AU450229B2 (en)
AU476714B2 (en)
AR201229Q (en)
AU466283B2 (en)
AU476696B2 (en)
AU472848B2 (en)
AR199451A1 (en)
AU477823B2 (en)
AU461342B2 (en)
AU471461B2 (en)
AR200256A1 (en)
AU476873B1 (en)
AR210729A1 (en)
AU477824B2 (en)

Legal Events

Date Code Title Description
ST Notification of lapse