EP0378964A2 - Outil à trépaner - Google Patents
Outil à trépaner Download PDFInfo
- Publication number
- EP0378964A2 EP0378964A2 EP89810661A EP89810661A EP0378964A2 EP 0378964 A2 EP0378964 A2 EP 0378964A2 EP 89810661 A EP89810661 A EP 89810661A EP 89810661 A EP89810661 A EP 89810661A EP 0378964 A2 EP0378964 A2 EP 0378964A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- segments
- drilling tool
- carrier part
- hollow drilling
- cutting bodies
- 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
Links
- 238000005520 cutting process Methods 0.000 claims abstract description 56
- 238000005553 drilling Methods 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 4
- 238000005476 soldering Methods 0.000 description 7
- 239000000498 cooling water Substances 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000010432 diamond Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D99/00—Subject matter not provided for in other groups of this subclass
-
- 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 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
- E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/78—Tool of specific diverse material
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/81—Tool having crystalline cutting edge
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/895—Having axial, core-receiving central portion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/896—Having product-receiving chamber
Definitions
- the invention relates to a hollow drilling tool with a tubular carrier part and cutting bodies arranged at the front end thereof.
- Hollow boring tools are mainly used for drilling larger diameter bores.
- a hollow drilling tool is known for example from GB-PS 935 030.
- the ring-shaped cutting body is connected to the carrier part.
- the radial guidance of this hollow drilling tool takes place exclusively via the cutting body.
- the guide length becomes shorter. If the guide length is too small, an exact borehole geometry can no longer be guaranteed.
- the invention has for its object to provide a hollow drilling tool that allows full use of the cutting body and compliance with an accurate hole geometry.
- this is achieved by the fact that guide elements are arranged towards the carrier part opposite to the feed direction, the outer contour of which corresponds to the cutting body along at least part of the circumference of the outer contour, the guide elements have a higher wear resistance than the carrier part and the axial extent of the Guide elements corresponds at least to the axial extent of the cutting body.
- the two functions "cutting” and “guiding” are separated from one another by the arrangement of guide elements. Since the outer contour of the guide elements at least along one Part of the circumference corresponds to the outer contour of the cutting bodies, the guide elements are guided in the bore previously made by the cutting bodies. Since the guide elements have a higher wear resistance than the carrier part, premature wear of the guide elements is prevented. Because the axial extent of the guide elements corresponds at least to the axial extent of the cutting bodies, adequate guidance of the hollow drilling tool in the borehole is ensured over the entire service life of the cutting bodies.
- the guide elements are expediently designed as segments. Segments each extend over part of the circumference. If the circumferential extent of the segments is sufficiently small and the outside diameter of the hollow drilling tool is sufficiently large, the segments can also be designed as flat strips that extend in the axial direction.
- At least three segments distributed along the circumference are preferably provided.
- the central position of the hollow drilling tool in a hole is determined using three segments. However, more than three, for example four or six, segments can also be provided for a favorable distribution of the lateral forces.
- the segments are expediently arranged adjacent to the cutting bodies in an extension against the feed direction.
- the cutting bodies are thus supported in the axial direction on the segments and these in turn on the carrier part.
- the segments and the cutting bodies can each be produced individually and then connected to one another, for example by soldering. Because the cutting body preferred consists of synthetic diamonds embedded in a metal matrix, the cutting bodies and the segments can also be pre-sintered individually and then sintered together to form a single body.
- the segments are advantageously arranged in corresponding recesses in the carrier body.
- the segments are thus surrounded on three sides by the carrier part. Such a positive connection of the segments to the carrier part prevents the segments from breaking out even under extreme conditions.
- the segments are expediently part of a carrier arranged between the carrier part and the cutting bodies.
- the carrier can thus be manufactured separately and then connected to the carrier part at one end and to the cutting bodies at the other end. This enables rational and economical production.
- the carrier can, for example, be provided with grooves running in the axial direction, so that strips serving to guide the hollow drilling tool are produced between the individual grooves. Such grooves are also used for the good removal of the cooling water and the cuttings washed away with it.
- the carrier can also be pre-sintered and then connected to the cutting bodies.
- the guide elements advantageously contain wear-resistant hard materials.
- Such hard materials are, for example, silicon carbide or the like. These hard materials can be sintered into a matrix material.
- the carrier part 1 consists of a tubular carrier part 1, a ring-shaped cutting body 2 and a likewise ring-shaped carrier 3.
- the carrier part 1 has a front end 1a and a rear end 1b. At the rear end 1b, the carrier part 1 is provided with a connecting piece 1c.
- the cutting body 2 also has a front end 2a and a rear end 2b.
- the cutting body 2 is also provided with two diametrically opposed slots 2c extending from the front end 2a. These slots 2c serve for the passage of the cooling water supplied through the carrier part 1 from the inside to the outside of the hollow drilling tool.
- the carrier 3 has a front end 3a and a rear end 3b. The front end 3a of the carrier 3 is connected to the rear end 2b of the cutting body 2.
- the carrier 3 is provided along its circumference with grooves 3c running in the axial direction. These grooves 3c serve to discharge the cooling water and the cuttings washed away with it. The webs remaining between the grooves 3c are used for guidance and are designed as segments 3d forms.
- the rear end 3b of the carrier 3 is connected to the front end 1a of the carrier part 1. This connection of the carrier part 1 to the carrier 3 can take place, for example, by welding or soldering.
- the connection between the cutting body 2 and the carrier 3 can also be made by welding or soldering. In addition, it is possible to sinter the cutting body 2 and the carrier 3 together.
- the axial extent 1 of the carrier 3 is a multiple of the axial extent s of the cutting body 2.
- the hollow drilling tool shown in FIG. 3 consists of a carrier part 11 and on its front end 11a arranged cutting bodies 12 and the guiding segments 13.
- the segments 13 are located between the carrier part 11 and the cutting bodies 12 and correspond in cross section to the cutting bodies 12.
- Die Cutting body 12 and the segments 13 can be connected to one another by sintering, soldering or welding.
- the segments 13 are connected to the carrier part 11 by welding or soldering.
- the carrier part 11 and the segments 13 are connected to one another only at the end. Due to the gaps between the segments 13, the cooling water can circulate from the inside to the outside of the tubular support part 11.
- the axial extent t of the segments 13 corresponds approximately to the axial extent s of the cutting bodies 12. This ensures that the guidance is sufficient until the cutting bodies 12 are completely worn out.
- the hollow drilling tool shown in FIG. 4 consists of a carrier part 21 and cutting bodies 22 and segments 23 arranged at its front end 21a.
- the cutting bodies 22 and the segments 23 are arranged in recesses 21b of the carrier part 21.
- the axial extent m of the segments 23 is approximately twice the axial extent s of the cutting bodies 22. This ensures good guidance of the hollow drill tool ensured even with almost completely worn cutting bodies 22.
- the segments 23 are completely embedded in the carrier part 21.
- the cutting bodies 22 are connected to the segments 23.
- the carrier part 21 has openings 21c between the individual cutting bodies 22. These openings 21c serve for the passage of the cooling water from the inside to the outside of the carrier part 21.
- the hollow drilling tool shown in FIG. 5 consists of a carrier part 31 and cutting bodies 32 arranged at its front end 31a and segments 33 serving as guides.
- the segments 33 and the cutting bodies 32 are completely embedded in recesses 31b of the carrier part 31.
- the axial extent n of the segments 33 is approximately three times the axial extent s of the cutting bodies 32. This results in a particularly long guide length and thus enables very precise bores to be produced.
- the carrier part 31 is provided with slots 31c between the cutting bodies 32. These slots serve for the passage of the cooling water.
- the cutting bodies 32 and the segments 33 can in turn be connected to one another by welding, soldering or sintering.
- the segments 33 are connected to the carrier part 31 by soldering or welding.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Drilling Tools (AREA)
- Earth Drilling (AREA)
- Surgical Instruments (AREA)
- Nonmetallic Welding Materials (AREA)
- Dowels (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT89810661T ATE91933T1 (de) | 1989-01-20 | 1989-09-05 | Hohlbohrwerkzeug. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3901528A DE3901528A1 (de) | 1989-01-20 | 1989-01-20 | Hohlbohrwerkzeug |
DE3901528 | 1989-01-20 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0378964A2 true EP0378964A2 (fr) | 1990-07-25 |
EP0378964A3 EP0378964A3 (en) | 1990-09-26 |
EP0378964B1 EP0378964B1 (fr) | 1993-07-28 |
Family
ID=6372415
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89810661A Expired - Lifetime EP0378964B1 (fr) | 1989-01-20 | 1989-09-05 | Outil à trépaner |
Country Status (6)
Country | Link |
---|---|
US (1) | US5069584A (fr) |
EP (1) | EP0378964B1 (fr) |
JP (1) | JPH02224978A (fr) |
AT (1) | ATE91933T1 (fr) |
CA (1) | CA2008169C (fr) |
DE (2) | DE3901528A1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990015683A1 (fr) * | 1989-06-14 | 1990-12-27 | Tyrolit Schleifmittelwerke Swarovski K.G. | Fleuret creux |
WO2013093041A1 (fr) * | 2011-12-22 | 2013-06-27 | Hilti Aktiengesellschaft | Couronne de forage avec section de coupe interchangeable |
DE102014007958A1 (de) * | 2014-06-04 | 2015-12-17 | Vittorio Pittana | Vorrichtung und Verfahren zur Senkung der notwenigen Antriebsleistung bei Kernbohrarbeiten |
EP3501713A1 (fr) * | 2017-12-21 | 2019-06-26 | HILTI Aktiengesellschaft | Section de coupe pour une couronne de forage |
Families Citing this family (56)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5316416A (en) * | 1992-09-29 | 1994-05-31 | Ehwa Diamond Ind. Co., Ltd. | Diamond cutting tool for hard articles |
US5887668A (en) * | 1993-09-10 | 1999-03-30 | Weatherford/Lamb, Inc. | Wellbore milling-- drilling |
US5887655A (en) * | 1993-09-10 | 1999-03-30 | Weatherford/Lamb, Inc | Wellbore milling and drilling |
US5996571A (en) * | 1996-02-01 | 1999-12-07 | Diamond Products Joint Venture | Diamond core drill bit |
US5741097A (en) * | 1996-06-20 | 1998-04-21 | Murphy, Ii; John W. | Heat exchanger fin remover |
US5803194A (en) * | 1996-11-19 | 1998-09-08 | Kennametal Inc. | Wear protector for a drilling tool |
US5823276A (en) * | 1996-12-24 | 1998-10-20 | Beck, Iii; August H. | Diamond-tipped core barrel and method of using same |
JP3290103B2 (ja) * | 1997-06-11 | 2002-06-10 | 株式会社アライドマテリアル | コアビット |
US5865571A (en) * | 1997-06-17 | 1999-02-02 | Norton Company | Non-metallic body cutting tools |
US6203416B1 (en) * | 1998-09-10 | 2001-03-20 | Atock Co., Ltd. | Outer-diameter blade, inner-diameter blade, core drill and processing machines using same ones |
DE19926247B4 (de) * | 1999-06-09 | 2005-08-04 | Krauss-Maffei Wegmann Gmbh & Co. Kg | Diamantkronenbohrer |
US6196908B1 (en) * | 1999-07-16 | 2001-03-06 | Storage Technology Corporation | Drill for composite materials |
US20020137433A1 (en) * | 2001-03-26 | 2002-09-26 | Lee Lawrence K. | Abrasive drill bit |
AT5265U1 (de) * | 2001-07-27 | 2002-05-27 | Schraml Glastechnik Gmbh | Diamant-hohlbohrer |
EP1304199A1 (fr) * | 2001-10-18 | 2003-04-23 | Marcrist International Limited | Trépan avec protection contre l'usure |
US8191545B2 (en) * | 2002-02-22 | 2012-06-05 | Kim & Ed Pte Ltd | Electroformed thin-wall core drills impregnated with abrasives |
US6935325B1 (en) * | 2002-11-01 | 2005-08-30 | Lawrence L. Getty | Method and apparatus for cutting and polishing stone articles |
US7028790B2 (en) * | 2003-09-19 | 2006-04-18 | Jack Moore Associates, Inc. | Rotary drill bit |
CA2563048A1 (fr) * | 2004-03-31 | 2005-10-13 | Japan Science And Technology Agency | Methode d'installation de boulon d'ancrage, methode de forage de boulon d'ancrage et dispositif de forage |
US7927189B2 (en) * | 2004-08-16 | 2011-04-19 | United Technologies Corporation | Superabrasive tool |
RU2388895C2 (ru) * | 2005-01-18 | 2010-05-10 | Груп Фордиа Инк. | Головка для бурения отверстия |
GB2427843B (en) * | 2005-10-24 | 2008-05-07 | C4 Carbides Ltd | Drill bit |
US7204244B1 (en) | 2006-03-02 | 2007-04-17 | Luminare Supply Corporation | Diamond core drill bit |
US8221423B2 (en) * | 2006-03-28 | 2012-07-17 | Warsaw Orthopedic, Inc. | Osteochondral plug graft harvesting instrument and kit |
US20080100125A1 (en) * | 2006-11-01 | 2008-05-01 | Les Staples | Abrasive cutter |
US9267332B2 (en) | 2006-11-30 | 2016-02-23 | Longyear Tm, Inc. | Impregnated drilling tools including elongated structures |
US9540883B2 (en) | 2006-11-30 | 2017-01-10 | Longyear Tm, Inc. | Fiber-containing diamond-impregnated cutting tools and methods of forming and using same |
ES2635721T3 (es) * | 2006-11-30 | 2017-10-04 | Longyear Tm, Inc. | Herramientas de corte impregnadas de diamante que contienen fibras |
US9500036B2 (en) | 2006-12-14 | 2016-11-22 | Longyear Tm, Inc. | Single-waterway drill bits and systems for using same |
AU2011201711B1 (en) * | 2006-12-14 | 2011-07-28 | Boart Longyear Company | Core drill bit with extended matrix height |
US9279292B2 (en) | 2013-11-20 | 2016-03-08 | Longyear Tm, Inc. | Drill bits having flushing and systems for using same |
US9506298B2 (en) | 2013-11-20 | 2016-11-29 | Longyear Tm, Inc. | Drill bits having blind-hole flushing and systems for using same |
US8459381B2 (en) | 2006-12-14 | 2013-06-11 | Longyear Tm, Inc. | Drill bits with axially-tapered waterways |
US7628228B2 (en) * | 2006-12-14 | 2009-12-08 | Longyear Tm, Inc. | Core drill bit with extended crown height |
US20080181735A1 (en) * | 2007-01-25 | 2008-07-31 | Ting Fong Electric & Machinery Co., Ltd. | Method for manufacturing drill cutters and structure thereof |
DE102007005463B3 (de) * | 2007-01-30 | 2008-05-29 | Ting Fong Electric & Machinery Co. Ltd., Sanchung | Verfahren zur Herstellung von Bohrfräsern sowie Bohrfräser |
CN101234468B (zh) * | 2007-01-30 | 2010-05-19 | 鼎峰电机工业股份有限公司 | 钻孔刀具的制造方法及其结构 |
CL2008002641A1 (es) * | 2007-09-05 | 2009-11-20 | Groupe Fordia Inc | Barrena perforadora que se usa con un fluido, comprende una seccion del cuerpo que posee un conducto para recibir el fluido, una seccion de una corona anular que esta en comunicacion fluida con el conducto del cuerpo, un componente de direccion de flujo que coopera con la seccion de la corona, donde esta ultima alcanza un umbral predeterminado de desgaste. |
US8590646B2 (en) * | 2009-09-22 | 2013-11-26 | Longyear Tm, Inc. | Impregnated cutting elements with large abrasive cutting media and methods of making and using the same |
US8657894B2 (en) | 2011-04-15 | 2014-02-25 | Longyear Tm, Inc. | Use of resonant mixing to produce impregnated bits |
US20130022421A1 (en) * | 2011-07-21 | 2013-01-24 | Robert Bosch Gmbh | Abrasive coring bit |
WO2014015154A1 (fr) | 2012-07-18 | 2014-01-23 | Milwaukee Electric Tool Corporation | Scie cylindrique |
CA2825729C (fr) | 2012-11-21 | 2018-05-22 | Diamond Products, Limited | Meche en diamant et ses procedes de fabrication |
EP2745965A1 (fr) * | 2012-12-21 | 2014-06-25 | HILTI Aktiengesellschaft | Trépan doté d'une section de coupe interchangeable |
EP2745966A1 (fr) | 2012-12-21 | 2014-06-25 | HILTI Aktiengesellschaft | Trépan doté d'une section de coupe interchangeable |
CA2854691C (fr) | 2013-07-03 | 2017-10-31 | Karl H. Moller | Procede de fabrication d'une couronne de forage pourvue d'un aleseur pour l'extraction de diamants |
EP3037229A1 (fr) * | 2014-12-22 | 2016-06-29 | HILTI Aktiengesellschaft | Bague de forage pour une couronne de carottage |
PE20171462A1 (es) | 2015-01-12 | 2017-10-11 | Longyear Tm Inc | Herramientas de perforacion que tienen matrices con aleaciones que forman carburo y metodos para fabricarlas y utilizarlas |
US11926005B2 (en) * | 2017-08-03 | 2024-03-12 | Vestas Wind Systems A/S | Mill bit for the manufacture of a wind turbine blade and method of forming same |
WO2020014340A1 (fr) | 2018-07-10 | 2020-01-16 | Milwaukee Electric Tool Corporation | Scie-cloche dotée de trous à parois latérales hexagonales |
US20200040663A1 (en) * | 2018-08-02 | 2020-02-06 | Qual Diamond Hi-Tech Corporation | Electroformed thin-wall diamond drill bit with continuous wavy-shape blade |
WO2020257303A1 (fr) | 2019-06-20 | 2020-12-24 | Milwaukee Electric Tool Corporation | Scie-cloche dotée de trous à parois latérales circulaires |
CN110424901B (zh) * | 2019-08-17 | 2021-05-18 | 温州瓯厦建设有限公司 | 一种开孔器 |
US20210101248A1 (en) * | 2019-10-07 | 2021-04-08 | Paul Luccia | Method and apparatus for forming holes |
USD958855S1 (en) | 2019-12-09 | 2022-07-26 | Milwaukee Electric Tool Corporation | Hole saw |
USD959521S1 (en) * | 2020-11-16 | 2022-08-02 | Adam Abrams | Tool |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE694502C (de) * | 1938-10-05 | 1940-08-02 | Walter Hebart | Aus einem Bohrrohr und aufgesetztem Bohrkopf bestehendes Bohrwerkzeug, insbesondere zur Herstellung langer Bohrungen |
GB935030A (en) * | 1959-01-26 | 1963-08-28 | Super Cut | Abrasive diamond core drill |
US3833077A (en) * | 1971-02-12 | 1974-09-03 | L Lavallee | Diamond drills |
DE2304271B2 (de) * | 1972-02-02 | 1976-03-18 | Christensen Diamond Products Co., Salt Lake City, Utah (V.St.A.) | Tiefbohrwerkzeug |
DE2850015A1 (de) * | 1977-11-18 | 1979-05-23 | Lamage Ltd | Diamantenbestueckter bohreinsatz |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3120286A (en) * | 1962-01-04 | 1964-02-04 | Jersey Prod Res Co | Stabilized drag bit |
SE337974B (fr) * | 1970-09-29 | 1971-08-23 | Sandvikens Jernverks Ab | |
SU437621A1 (ru) * | 1972-06-21 | 1974-07-30 | Предприятие П/Я В-2438 | Алмазное кольцевое сверло |
SU745701A1 (ru) * | 1977-10-07 | 1980-07-07 | Предприятие П/Я В-2438 | Алмазное кольцевое сверло |
SU791890A1 (ru) * | 1978-01-30 | 1980-12-30 | Ордена Трудового Красного Знамени Институт Сверхтвердых Материалов Ан Украинской Сср | Долото колонковое |
US4208154A (en) * | 1978-03-21 | 1980-06-17 | Gundy William P | Core drill |
SU856821A1 (ru) * | 1979-04-06 | 1981-08-25 | Всесоюзный Научно-Исследовательский Институт Нерудных Строительных Материалов И Гидромеханизации (Вниинеруд) | Алмазный инструмент дл кольцевого сверлени |
GB2052325A (en) * | 1979-07-03 | 1981-01-28 | Stark T | Multi-cutter drilling bit tool |
-
1989
- 1989-01-20 DE DE3901528A patent/DE3901528A1/de not_active Withdrawn
- 1989-09-05 EP EP89810661A patent/EP0378964B1/fr not_active Expired - Lifetime
- 1989-09-05 AT AT89810661T patent/ATE91933T1/de not_active IP Right Cessation
- 1989-09-05 DE DE8989810661T patent/DE58905054D1/de not_active Expired - Fee Related
- 1989-12-27 JP JP1336835A patent/JPH02224978A/ja active Pending
-
1990
- 1990-01-19 CA CA002008169A patent/CA2008169C/fr not_active Expired - Fee Related
- 1990-01-22 US US07/468,375 patent/US5069584A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE694502C (de) * | 1938-10-05 | 1940-08-02 | Walter Hebart | Aus einem Bohrrohr und aufgesetztem Bohrkopf bestehendes Bohrwerkzeug, insbesondere zur Herstellung langer Bohrungen |
GB935030A (en) * | 1959-01-26 | 1963-08-28 | Super Cut | Abrasive diamond core drill |
US3833077A (en) * | 1971-02-12 | 1974-09-03 | L Lavallee | Diamond drills |
DE2304271B2 (de) * | 1972-02-02 | 1976-03-18 | Christensen Diamond Products Co., Salt Lake City, Utah (V.St.A.) | Tiefbohrwerkzeug |
DE2850015A1 (de) * | 1977-11-18 | 1979-05-23 | Lamage Ltd | Diamantenbestueckter bohreinsatz |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990015683A1 (fr) * | 1989-06-14 | 1990-12-27 | Tyrolit Schleifmittelwerke Swarovski K.G. | Fleuret creux |
WO2013093041A1 (fr) * | 2011-12-22 | 2013-06-27 | Hilti Aktiengesellschaft | Couronne de forage avec section de coupe interchangeable |
DE102014007958A1 (de) * | 2014-06-04 | 2015-12-17 | Vittorio Pittana | Vorrichtung und Verfahren zur Senkung der notwenigen Antriebsleistung bei Kernbohrarbeiten |
EP3501713A1 (fr) * | 2017-12-21 | 2019-06-26 | HILTI Aktiengesellschaft | Section de coupe pour une couronne de forage |
WO2019121471A1 (fr) * | 2017-12-21 | 2019-06-27 | Hilti Aktiengesellschaft | Partie de coupe d'un trépan de forage |
Also Published As
Publication number | Publication date |
---|---|
ATE91933T1 (de) | 1993-08-15 |
EP0378964A3 (en) | 1990-09-26 |
CA2008169A1 (fr) | 1990-07-20 |
EP0378964B1 (fr) | 1993-07-28 |
DE3901528A1 (de) | 1990-07-26 |
US5069584A (en) | 1991-12-03 |
DE58905054D1 (de) | 1993-09-02 |
JPH02224978A (ja) | 1990-09-06 |
CA2008169C (fr) | 2000-01-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0378964A2 (fr) | Outil à trépaner | |
DE3111156C1 (de) | Schneidglied fuer Drehbohrmeissel zum Tiefbohren in Erdformationen | |
DE69807398T2 (de) | Drehbohrmeissel | |
DE3040840C2 (de) | Bohrmeißel | |
DE3039633C2 (de) | Drehbohrmeißel, insbesondere für Tiefbohrungen | |
DE3143591C2 (fr) | ||
DE2752162B2 (de) | TiefbohrmeiBel | |
EP0603121A1 (fr) | Font tubulaire | |
DE3824502A1 (de) | Hohlbohrwerkzeug | |
EP0707129A2 (fr) | Outil de forage avec support et éléments de coupe | |
EP0706870B1 (fr) | Scie tubulaire | |
DE19942987A1 (de) | Bohrwerkzeug | |
EP1362659B1 (fr) | Outil, dispositif et procédé pour l'ébavurage de trous | |
DE3519101C2 (de) | Fräsmeißel für eine Fräsvorrichtung | |
DE3705717A1 (de) | Dosensenker oder hohlbohrkrone sowie herstellungsverfahren hierfuer | |
DE2821307C2 (fr) | ||
EP0264599B1 (fr) | Outil d'alésage | |
DE69820349T2 (de) | Verbesserungen an Schneidelementen mit einer Oberfläche aus superhartem Werkstoff | |
EP1083295A1 (fr) | Outil de forage | |
DE3336626C2 (fr) | ||
WO2005037472A1 (fr) | Outil pour realiser des alesages et/ou usiner ces derniers | |
EP0352546A2 (fr) | Trépan carottier | |
DE19954315A1 (de) | Bohrwerkzeug | |
EP0334806A1 (fr) | Couronne de forage de roche | |
DE2943325A1 (de) | Drehbohrwerkzeug fuer tiefbohrungen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH DE FR GB IT LI NL SE |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE FR GB IT LI NL SE |
|
17P | Request for examination filed |
Effective date: 19901013 |
|
17Q | First examination report despatched |
Effective date: 19920103 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
ITF | It: translation for a ep patent filed | ||
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE FR GB IT LI NL SE |
|
REF | Corresponds to: |
Ref document number: 91933 Country of ref document: AT Date of ref document: 19930815 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 58905054 Country of ref document: DE Date of ref document: 19930902 |
|
ET | Fr: translation filed | ||
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19930928 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
EAL | Se: european patent in force in sweden |
Ref document number: 89810661.2 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20020904 Year of fee payment: 14 Ref country code: GB Payment date: 20020904 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20020910 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20020911 Year of fee payment: 14 Ref country code: AT Payment date: 20020911 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20020916 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20020930 Year of fee payment: 14 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20021129 Year of fee payment: 14 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030905 Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030905 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030906 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030930 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030930 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030930 |
|
BERE | Be: lapsed |
Owner name: *HILTI A.G. Effective date: 20030930 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040401 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040401 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
EUG | Se: european patent has lapsed | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040528 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee |
Effective date: 20040401 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050905 |