FR2188040A1 - Rotary drill bit - with readily replaceable cutter bits - Google Patents

Rotary drill bit - with readily replaceable cutter bits

Info

Publication number
FR2188040A1
FR2188040A1 FR7220814A FR7220814A FR2188040A1 FR 2188040 A1 FR2188040 A1 FR 2188040A1 FR 7220814 A FR7220814 A FR 7220814A FR 7220814 A FR7220814 A FR 7220814A FR 2188040 A1 FR2188040 A1 FR 2188040A1
Authority
FR
France
Prior art keywords
hole
drill bit
groove
rotary drill
series
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.)
Granted
Application number
FR7220814A
Other languages
French (fr)
Other versions
FR2188040B1 (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.)
TARTAN IND S Inc
Original Assignee
TARTAN IND S 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 TARTAN IND S Inc filed Critical TARTAN IND S Inc
Priority to FR7220814A priority Critical patent/FR2188040A1/en
Publication of FR2188040A1 publication Critical patent/FR2188040A1/en
Application granted granted Critical
Publication of FR2188040B1 publication Critical patent/FR2188040B1/fr
Granted 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
    • E21B10/627—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements
    • 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
    • E21B10/627—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements
    • E21B10/633—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements independently detachable

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)

Abstract

Rotary drill bit for carrying out drilling operations in the ground and capable of being driven so that it rotates round its longitudinal axis, comprising (a) a body, one end of which has a series of radial grooves and a diametrical section opening into the end face and extended up to the rotation axis, (b) a series of L - shaped blades enclosed in the grooves, each with a hole between its ends, (c) a number of transverse holes in the body each intersecting a groove at a point displaced axially with respect to the hole in the corresponding blade in that groove, (d) an elastic element enclosed in each of the transverse holes in the body and in the hole in the blade, which it pushes elastically and simultaneously parallel to the longitudinal axis of the body and transversely thereto, in such a way that it is retained in the groove and held against the body, the blades extending radially beyond the body to collectively delimit calibrating surfaces for the hole drilled by the drill bit and extending axially beyond the corresponding end of the body for which it constitutes the front drilling cutters. More especially the elastic element is a rolled spring steel tubular split pin.
FR7220814A 1972-06-09 1972-06-09 Rotary drill bit - with readily replaceable cutter bits Granted FR2188040A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7220814A FR2188040A1 (en) 1972-06-09 1972-06-09 Rotary drill bit - with readily replaceable cutter bits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7220814A FR2188040A1 (en) 1972-06-09 1972-06-09 Rotary drill bit - with readily replaceable cutter bits

Publications (2)

Publication Number Publication Date
FR2188040A1 true FR2188040A1 (en) 1974-01-18
FR2188040B1 FR2188040B1 (en) 1976-06-11

Family

ID=9099947

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7220814A Granted FR2188040A1 (en) 1972-06-09 1972-06-09 Rotary drill bit - with readily replaceable cutter bits

Country Status (1)

Country Link
FR (1) FR2188040A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998058153A1 (en) * 1997-06-16 1998-12-23 Sds Digger Tools Pty. Ltd. A drill bit with drive and retainer means
CN113039343A (en) * 2018-11-26 2021-06-25 阿特拉钻孔技术有限合伙公司 Drill bit for drilling earth and other hard materials
CN113305325A (en) * 2021-06-03 2021-08-27 山东劳动职业技术学院（山东劳动技师学院） Numerical control machine tool for machining precision die

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1645962A (en) * 1924-09-02 1927-10-18 William W Mills Drilling bit
US3106973A (en) * 1960-09-26 1963-10-15 Christensen Diamond Prod Co Rotary drill bits
US3220497A (en) * 1963-08-26 1965-11-30 Christensen Diamond Prod Co Rotary drag bit
US3526049A (en) * 1969-06-17 1970-09-01 Irvin H Nichols Retainer pin for earth engaging member

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1645962A (en) * 1924-09-02 1927-10-18 William W Mills Drilling bit
US3106973A (en) * 1960-09-26 1963-10-15 Christensen Diamond Prod Co Rotary drill bits
US3220497A (en) * 1963-08-26 1965-11-30 Christensen Diamond Prod Co Rotary drag bit
US3526049A (en) * 1969-06-17 1970-09-01 Irvin H Nichols Retainer pin for earth engaging member

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998058153A1 (en) * 1997-06-16 1998-12-23 Sds Digger Tools Pty. Ltd. A drill bit with drive and retainer means
CN113039343A (en) * 2018-11-26 2021-06-25 阿特拉钻孔技术有限合伙公司 Drill bit for drilling earth and other hard materials
CN113305325A (en) * 2021-06-03 2021-08-27 山东劳动职业技术学院（山东劳动技师学院） Numerical control machine tool for machining precision die

Also Published As

Publication number Publication date
FR2188040B1 (en) 1976-06-11

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Legal Events

Date Code Title Description
ST Notification of lapse