FR804286A - Flat chisel for rotary drilling process - Google Patents

Flat chisel for rotary drilling process

Info

Publication number
FR804286A
FR804286A FR804286DA FR804286A FR 804286 A FR804286 A FR 804286A FR 804286D A FR804286D A FR 804286DA FR 804286 A FR804286 A FR 804286A
Authority
FR
France
Prior art keywords
drilling process
rotary drilling
flat chisel
chisel
flat
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
French (fr)
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.)
PREUSSISCHE BERGWERKS und HUET
Original Assignee
PREUSSISCHE BERGWERKS und HUET
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 PREUSSISCHE BERGWERKS und HUET filed Critical PREUSSISCHE BERGWERKS und HUET
Application granted granted Critical
Publication of FR804286A publication Critical patent/FR804286A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
FR804286D 1936-03-24 1936-03-24 Flat chisel for rotary drilling process Expired FR804286A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR804286T 1936-03-24

Publications (1)

Publication Number Publication Date
FR804286A true FR804286A (en) 1936-10-20

Family

ID=9250647

Family Applications (1)

Application Number Title Priority Date Filing Date
FR804286D Expired FR804286A (en) 1936-03-24 1936-03-24 Flat chisel for rotary drilling process

Country Status (1)

Country Link
FR (1) FR804286A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2864241A (en) * 1955-12-20 1958-12-16 Fiore Driving points for piles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2864241A (en) * 1955-12-20 1958-12-16 Fiore Driving points for piles

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