EP0119620A3 - Improved tooth design using cylindrical diamond cutting elements - Google Patents

Improved tooth design using cylindrical diamond cutting elements Download PDF

Info

Publication number: EP0119620A3
Authority: EP; European Patent Office
Prior art keywords: cutting elements; diamond cutting; tooth design; improved tooth; cylindrical diamond
Prior art date: 1983-03-21
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

EP84102985A

Other versions

EP0119620A2 (en

EP0119620B1 (en

Inventor

Alexander K. Meskin

Clifford R. Pay

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.)

Baker Hughes Oilfield Operations LLC

Original Assignee

Norton Christensen 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.)

1983-03-21

Filing date

1984-03-19

Publication date

1986-02-12

1984-03-19 Application filed by Norton Christensen Inc filed Critical Norton Christensen Inc

1984-09-26 Publication of EP0119620A2 publication Critical patent/EP0119620A2/en

1986-02-12 Publication of EP0119620A3 publication Critical patent/EP0119620A3/en

1990-02-28 Application granted granted Critical

1990-02-28 Publication of EP0119620B1 publication Critical patent/EP0119620B1/en

2004-03-19 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

229910003460 diamond Inorganic materials 0.000 title 1
239000010432 diamond Substances 0.000 title 1

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
- E21B10/56—Button-type inserts
- E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts

EP84102985A 1983-03-21 1984-03-19 Improved tooth design using cylindrical diamond cutting elements Expired - Lifetime EP0119620B1 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US47706883A	1983-03-21	1983-03-21
US477068		1983-03-21

Publications (3)

Publication Number	Publication Date
EP0119620A2 EP0119620A2 (en)	1984-09-26
EP0119620A3 true EP0119620A3 (en)	1986-02-12
EP0119620B1 EP0119620B1 (en)	1990-02-28

Family

ID=23894393

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP84102985A Expired - Lifetime EP0119620B1 (en)	1983-03-21	1984-03-19	Improved tooth design using cylindrical diamond cutting elements

Country Status (7)

Country	Link
EP (1)	EP0119620B1 (en)
JP (1)	JPS6016692A (en)
AU (1)	AU2568884A (en)
BR (1)	BR8401280A (en)
CA (1)	CA1218355A (en)
DE (1)	DE3481435D1 (en)
ZA (1)	ZA842109B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN86100885A (en) *	1985-01-25	1986-08-20	诺顿-克里斯坦森公司	A kind of improved groove chipping type bit
US4673044A (en) *	1985-08-02	1987-06-16	Eastman Christensen Co.	Earth boring bit for soft to hard formations
GB2188354B (en) *	1986-03-27	1989-11-22	Shell Int Research	Rotary drill bit
CL2008002641A1 (en)	2007-09-05	2009-11-20	Groupe Fordia Inc	Drilling bit that is used with a fluid, comprises a section of the body that has a conduit to receive the fluid, a section of an annular crown that is in fluid communication with the conduit of the body, a flow direction component that cooperates with the section of the crown, where the latter reaches a predetermined wear threshold.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4190126A (en) *	1976-12-28	1980-02-26	Tokiwa Industrial Co., Ltd.	Rotary abrasive drilling bit
US4351401A (en) *	1978-06-08	1982-09-28	Christensen, Inc.	Earth-boring drill bits
GB2096669A (en) *	1981-04-11	1982-10-20	Christensen Inc	Cutting member for rotary drill bits
US4373593A (en) *	1979-03-16	1983-02-15	Christensen, Inc.	Drill bit

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4529047A (en) *	1983-02-24	1985-07-16	Norton Christensen, Inc.	Cutting tooth and a rotating bit having a fully exposed polycrystalline diamond element

1984
- 1984-03-16 AU AU25688/84A patent/AU2568884A/en not_active Abandoned
- 1984-03-19 EP EP84102985A patent/EP0119620B1/en not_active Expired - Lifetime
- 1984-03-19 JP JP59051265A patent/JPS6016692A/en active Pending
- 1984-03-19 DE DE8484102985T patent/DE3481435D1/en not_active Expired - Lifetime
- 1984-03-20 CA CA000450039A patent/CA1218355A/en not_active Expired
- 1984-03-20 BR BR8401280A patent/BR8401280A/en unknown
- 1984-03-21 ZA ZA842109A patent/ZA842109B/en unknown

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4190126A (en) *	1976-12-28	1980-02-26	Tokiwa Industrial Co., Ltd.	Rotary abrasive drilling bit
US4351401A (en) *	1978-06-08	1982-09-28	Christensen, Inc.	Earth-boring drill bits
US4373593A (en) *	1979-03-16	1983-02-15	Christensen, Inc.	Drill bit
GB2096669A (en) *	1981-04-11	1982-10-20	Christensen Inc	Cutting member for rotary drill bits

Also Published As

Publication number	Publication date
CA1218355A (en)	1987-02-24
JPS6016692A (en)	1985-01-28
DE3481435D1 (en)	1990-04-05
EP0119620A2 (en)	1984-09-26
BR8401280A (en)	1984-10-30
EP0119620B1 (en)	1990-02-28
ZA842109B (en)	1984-11-28
AU2568884A (en)	1984-09-27

Legal Events

Date	Code	Title	Description
1984-07-27	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
1984-09-26	AK	Designated contracting states	Designated state(s): BE CH DE FR GB LI NL
1985-12-09	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1986-02-12	AK	Designated contracting states	Designated state(s): BE CH DE FR GB LI NL
1986-06-25	17P	Request for examination filed	Effective date: 19860422
1987-09-02	17Q	First examination report despatched	Effective date: 19870721
1989-01-18	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: EASTMAN CHRISTENSEN COMPANY
1990-01-13	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1990-02-28	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): BE DE FR GB NL
1990-04-05	REF	Corresponds to:	Ref document number: 3481435 Country of ref document: DE Date of ref document: 19900405
1990-04-06	ET	Fr: translation filed
1990-12-20	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1990-12-20	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1991-02-06	26N	No opposition filed
1991-02-15	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19910215 Year of fee payment: 8
1991-03-21	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19910321 Year of fee payment: 8
1991-03-27	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19910327 Year of fee payment: 8
1991-03-31	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 19910331 Year of fee payment: 8
1991-06-26	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: BE Payment date: 19910626 Year of fee payment: 8
1992-03-19	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Effective date: 19920319
1992-03-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: BE Effective date: 19920331
1992-09-30	BERE	Be: lapsed	Owner name: EASTMAN CHRISTENSEN CY Effective date: 19920331
1992-10-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Effective date: 19921001
1992-11-16	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee
1992-11-18	GBPC	Gb: european patent ceased through non-payment of renewal fee
1992-11-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Effective date: 19921130
1992-12-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Effective date: 19921201
1993-01-29	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST

Publication	Publication Date	Title
EP0351952A3 (en)	1990-06-27	Convex-shaped diamond cutting elements
GB8509840D0 (en)	1985-05-22	Cutter elements
AU2537584A (en)	1984-09-13	Diamond cutting element
GB8303752D0 (en)	1983-03-16	Cutting tools
DE3463624D1 (en)	1987-06-19	Cutting insert
GB8400277D0 (en)	1984-02-08	Securing cutting tooth
AU557427B2 (en)	1986-12-18	Diamond cutting element
GB2144314B (en)	1986-11-12	Cutter
GB2154883B (en)	1987-01-07	Toothpick
GB8403077D0 (en)	1984-03-07	Blade
DE3476033D1 (en)	1989-02-16	Cutting insert
GB2166178B (en)	1988-05-25	Cutting tooth
EP0115329A3 (en)	1986-07-09	Saw teeth grinding machine
EP0119620A3 (en)	1986-02-12	Improved tooth design using cylindrical diamond cutting elements
GB2143716B (en)	1986-11-26	Orbital cutting system
GB2140732B (en)	1986-07-16	Blade
GB8428947D0 (en)	1984-12-27	Cutter
GB8420842D0 (en)	1984-09-19	Single-tooth cutter
GB2151542B (en)	1987-03-18	Cutting tools
SU1151379A1 (en)	1985-04-23	Rolled-stock cutting arrangement
GB8431390D0 (en)	1985-01-23	Cutting machine
BG33532A1 (en)	1983-03-15	Cutting tooth for construction mashines
GB8304889D0 (en)	1983-03-23	Sheepshearing handpiece
GB8306618D0 (en)	1983-04-13	Cutting tools
GB2154115B (en)	1986-11-19	Orbital cutting system