EP0315221A3 - Drehbohrmeissel und Verfahren zur Herstellung solcher Meissel - Google Patents

Drehbohrmeissel und Verfahren zur Herstellung solcher Meissel Download PDF

Info

Publication number: EP0315221A3
Authority: EP; European Patent Office
Prior art keywords: cutting element; thickness; bit body; backing layer; terms
Prior art date: 1985-02-28
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP88120448A

Other languages

English (en)

French (fr)

Other versions

EP0315221A2 (de

Inventor

John Denzil Barr

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.)

Camco Drilling Group Ltd

Original Assignee

Reed 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.)

1985-02-28

Filing date

1986-02-21

Publication date

1989-10-25

1985-02-28 Priority claimed from GB858505244A external-priority patent/GB8505244D0/en

1986-02-21 Application filed by Reed Tool Co Ltd filed Critical Reed Tool Co Ltd

1986-02-21 Priority to EP88120448A priority Critical patent/EP0315221A3/de

1989-05-10 Publication of EP0315221A2 publication Critical patent/EP0315221A2/de

1989-10-25 Publication of EP0315221A3 publication Critical patent/EP0315221A3/de

Status Withdrawn legal-status Critical Current

Links

238000004519 manufacturing process Methods 0.000 title 1
238000000034 method Methods 0.000 title 1
238000005552 hardfacing Methods 0.000 abstract 2
229910003460 diamond Inorganic materials 0.000 abstract 1
239000010432 diamond Substances 0.000 abstract 1
238000005553 drilling Methods 0.000 abstract 1
239000012530 fluid Substances 0.000 abstract 1
UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 abstract 1

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
- E21B10/56—Button-type inserts
- E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
- E21B10/573—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts characterised by support details, e.g. the substrate construction or the interface between the substrate and the cutting element
- E21B10/5735—Interface between the substrate and the cutting element
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents

Landscapes

Engineering & Computer Science (AREA)
Life Sciences & Earth Sciences (AREA)
Mining & Mineral Resources (AREA)
Geology (AREA)
Mechanical Engineering (AREA)
Crystallography & Structural Chemistry (AREA)
Environmental & Geological Engineering (AREA)
Fluid Mechanics (AREA)
Physics & Mathematics (AREA)
Chemical & Material Sciences (AREA)
General Life Sciences & Earth Sciences (AREA)
Geochemistry & Mineralogy (AREA)
Earth Drilling (AREA)
Drilling Tools (AREA)

EP88120448A 1985-02-28 1986-02-21 Drehbohrmeissel und Verfahren zur Herstellung solcher Meissel Withdrawn EP0315221A3 (de)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
EP88120448A EP0315221A3 (de)	1985-02-28	1986-02-21	Drehbohrmeissel und Verfahren zur Herstellung solcher Meissel

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
GB8505244		1985-02-28
GB858505244A GB8505244D0 (en)	1985-02-28	1985-02-28	Rotary drill bits
EP88120448A EP0315221A3 (de)	1985-02-28	1986-02-21	Drehbohrmeissel und Verfahren zur Herstellung solcher Meissel

Related Parent Applications (2)

Application Number	Title	Priority Date	Filing Date
EP86301244A Division EP0193361B1 (de)	1985-02-28	1986-02-21	Drehbohrmeissel und Verfahren zur Herstellung solcher Meissel
EP86301244.9 Division		1986-02-21

Publications (2)

Publication Number	Publication Date
EP0315221A2 EP0315221A2 (de)	1989-05-10
EP0315221A3 true EP0315221A3 (de)	1989-10-25

Family

ID=26114791

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP88120448A Withdrawn EP0315221A3 (de)	1985-02-28	1986-02-21	Drehbohrmeissel und Verfahren zur Herstellung solcher Meissel

Country Status (1)

Country	Link
EP (1)	EP0315221A3 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2789004A1 (fr) *	1999-02-02	2000-08-04	Jackson E Wetzel	Outil a polir notamment des ecrans de television

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4186628A (en) *	1976-11-30	1980-02-05	General Electric Company	Rotary drill bit and method for making same
GB2084219A (en) *	1980-09-25	1982-04-07	Nl Industries Inc	Mounting of cutters on cutting tools
EP0079243A1 (de) *	1981-11-09	1983-05-18	Sumitomo Electric Industries Limited	Kompaktverbundkörper der einen Presskörper aus Diamant oder Bornitrid enthält

1986
- 1986-02-21 EP EP88120448A patent/EP0315221A3/de not_active Withdrawn

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4186628A (en) *	1976-11-30	1980-02-05	General Electric Company	Rotary drill bit and method for making same
GB2084219A (en) *	1980-09-25	1982-04-07	Nl Industries Inc	Mounting of cutters on cutting tools
EP0079243A1 (de) *	1981-11-09	1983-05-18	Sumitomo Electric Industries Limited	Kompaktverbundkörper der einen Presskörper aus Diamant oder Bornitrid enthält

Also Published As

Publication number	Publication date
EP0315221A2 (de)	1989-05-10

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Legal Events

Date	Code	Title	Description
1989-03-24	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
1989-05-10	AC	Divisional application: reference to earlier application	Ref document number: 193361 Country of ref document: EP
1989-05-10	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): BE DE FR NL
1989-09-04	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1989-10-25	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): BE DE FR NL
1990-05-16	17P	Request for examination filed	Effective date: 19900319
1991-06-05	17Q	First examination report despatched	Effective date: 19910424
1994-07-18	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN
1994-09-07	18D	Application deemed to be withdrawn	Effective date: 19940301