EP0350526A1 - Trépan - Google Patents

Trépan Download PDF

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Publication number
EP0350526A1
EP0350526A1 EP88111338A EP88111338A EP0350526A1 EP 0350526 A1 EP0350526 A1 EP 0350526A1 EP 88111338 A EP88111338 A EP 88111338A EP 88111338 A EP88111338 A EP 88111338A EP 0350526 A1 EP0350526 A1 EP 0350526A1
Authority
EP
European Patent Office
Prior art keywords
recess
core drill
grinding wheel
diamond
drill
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
EP88111338A
Other languages
German (de)
English (en)
Other versions
EP0350526B1 (fr
Inventor
Takesaburo Tanigawa
Toshiyuki Narita
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.)
Asahi Diamond Industrial Co Ltd
NIKKEN TOOL CO Ltd
Original Assignee
Asahi Diamond Industrial Co Ltd
NIKKEN TOOL CO Ltd
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 Asahi Diamond Industrial Co Ltd, NIKKEN TOOL CO Ltd filed Critical Asahi Diamond Industrial Co Ltd
Priority to DE3851953T priority Critical patent/DE3851953D1/de
Priority to EP19880111338 priority patent/EP0350526B1/fr
Publication of EP0350526A1 publication Critical patent/EP0350526A1/fr
Application granted granted Critical
Publication of EP0350526B1 publication Critical patent/EP0350526B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
    • 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
    • E21B10/02—Core bits
    • E21B10/04—Core bits with core destroying means
EP19880111338 1988-07-14 1988-07-14 Trépan Expired - Lifetime EP0350526B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE3851953T DE3851953D1 (de) 1988-07-14 1988-07-14 Hohlbohrer.
EP19880111338 EP0350526B1 (fr) 1988-07-14 1988-07-14 Trépan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19880111338 EP0350526B1 (fr) 1988-07-14 1988-07-14 Trépan

Publications (2)

Publication Number Publication Date
EP0350526A1 true EP0350526A1 (fr) 1990-01-17
EP0350526B1 EP0350526B1 (fr) 1994-10-26

Family

ID=8199119

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880111338 Expired - Lifetime EP0350526B1 (fr) 1988-07-14 1988-07-14 Trépan

Country Status (2)

Country Link
EP (1) EP0350526B1 (fr)
DE (1) DE3851953D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2050550A1 (fr) * 2006-08-10 2009-04-22 Max Co., Ltd. Trépan sans noyau
CN106471206A (zh) * 2014-04-07 2017-03-01 长年Tm公司 单水道钻头以及使用单水道钻头的系统
EP2818288B1 (fr) * 2013-06-25 2019-05-15 Schott AG Tête porte-outil, procédé de fabrication d'un élément en verre ou en vitrocéramique et support de mirroir en verre ou en vitrocéramique pour télescope

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR431787A (fr) * 1911-06-30 1911-11-20 Edmond Victor Jeanmaire Perforatrice pour mines, carrières et autres similaires
DE695618C (de) * 1935-10-08 1940-08-29 Paul Klee Das gleichzeitige Herstellen einer Vielzahl von aus einem Stueck bestehenden und biszu etwa 7m langen, walzen- und roehrenfoermigen Koerpern aus Naturhartgestein oder sonstigen Hartstoffen
US2731236A (en) * 1953-10-05 1956-01-17 Bruce Floyd Diamond drill bit
CH504266A (de) * 1970-06-26 1971-03-15 Uk Ni Kt I Sint Sverkhtverdykh Diamanthohlbohrer
SU682379A2 (ru) * 1974-12-12 1979-08-30 Ордена Трудового Красного Знамени Институт Сверхтвердых Материалов Ан Украинской Сср Инструмент дл изготовлени мелких отверстий в твердых и хрупких материалах

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR431787A (fr) * 1911-06-30 1911-11-20 Edmond Victor Jeanmaire Perforatrice pour mines, carrières et autres similaires
DE695618C (de) * 1935-10-08 1940-08-29 Paul Klee Das gleichzeitige Herstellen einer Vielzahl von aus einem Stueck bestehenden und biszu etwa 7m langen, walzen- und roehrenfoermigen Koerpern aus Naturhartgestein oder sonstigen Hartstoffen
US2731236A (en) * 1953-10-05 1956-01-17 Bruce Floyd Diamond drill bit
CH504266A (de) * 1970-06-26 1971-03-15 Uk Ni Kt I Sint Sverkhtverdykh Diamanthohlbohrer
SU682379A2 (ru) * 1974-12-12 1979-08-30 Ордена Трудового Красного Знамени Институт Сверхтвердых Материалов Ан Украинской Сср Инструмент дл изготовлени мелких отверстий в твердых и хрупких материалах

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2050550A1 (fr) * 2006-08-10 2009-04-22 Max Co., Ltd. Trépan sans noyau
EP2050550A4 (fr) * 2006-08-10 2015-04-01 Max Co Ltd Trépan sans noyau
EP2818288B1 (fr) * 2013-06-25 2019-05-15 Schott AG Tête porte-outil, procédé de fabrication d'un élément en verre ou en vitrocéramique et support de mirroir en verre ou en vitrocéramique pour télescope
CN106471206A (zh) * 2014-04-07 2017-03-01 长年Tm公司 单水道钻头以及使用单水道钻头的系统

Also Published As

Publication number Publication date
EP0350526B1 (fr) 1994-10-26
DE3851953D1 (de) 1994-12-01

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