GB2395202B - Hardfacing composition for rock bits - Google Patents

Hardfacing composition for rock bits

Info

Publication number: GB2395202B
Authority: GB; United Kingdom
Prior art keywords: rock bits; hardfacing composition; hardfacing; composition; rock
Prior art date: 2001-10-29
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.): Expired - Fee Related

Application number

GB0401930A

Other versions

GB2395202A (en

GB0401930D0 (en

Inventor

Dah-Ben Liang

Alysia Canson White

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.)

Smith International Inc

Original Assignee

Smith International 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.)

2001-10-29

Filing date

2002-10-29

Publication date

2005-04-20

2001-10-29 Priority claimed from US10/039,912 external-priority patent/US6659206B2/en

2002-10-29 Application filed by Smith International Inc filed Critical Smith International Inc

2004-03-03 Publication of GB0401930D0 publication Critical patent/GB0401930D0/en

2004-05-19 Publication of GB2395202A publication Critical patent/GB2395202A/en

2005-04-20 Application granted granted Critical

2005-04-20 Publication of GB2395202B publication Critical patent/GB2395202B/en

2022-10-29 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

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
- E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type

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)

GB0401930A 2001-10-29 2002-10-29 Hardfacing composition for rock bits Expired - Fee Related GB2395202B (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US10/039,912 US6659206B2 (en)	2001-10-29	2001-10-29	Hardfacing composition for rock bits
GB0225171A GB2383587B (en)	2001-10-29	2002-10-29	Hardfacing composition for rock bits

Publications (3)

Publication Number	Publication Date
GB0401930D0 GB0401930D0 (en)	2004-03-03
GB2395202A GB2395202A (en)	2004-05-19
GB2395202B true GB2395202B (en)	2005-04-20

Family

ID=32178885

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB0401930A Expired - Fee Related GB2395202B (en)	2001-10-29	2002-10-29	Hardfacing composition for rock bits

Country Status (1)

Country	Link
GB (1)	GB2395202B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US9103004B2 (en)	2005-10-03	2015-08-11	Kennametal Inc.	Hardfacing composition and article having hardfacing deposit
WO2007041606A2 (en) *	2005-10-03	2007-04-12	Kennametal Inc.	Hardfacing composition and article having hardfacing deposit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5051112A (en) *	1988-06-29	1991-09-24	Smith International, Inc.	Hard facing
GB2311085A (en) *	1996-03-12	1997-09-17	Smith International	A rock bit with hardfacing comprising spherical cast tungsten carbide particles

2002
- 2002-10-29 GB GB0401930A patent/GB2395202B/en not_active Expired - Fee Related

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5051112A (en) *	1988-06-29	1991-09-24	Smith International, Inc.	Hard facing
GB2311085A (en) *	1996-03-12	1997-09-17	Smith International	A rock bit with hardfacing comprising spherical cast tungsten carbide particles
US5791422A (en) *	1996-03-12	1998-08-11	Smith International, Inc.	Rock bit with hardfacing material incorporating spherical cast carbide particles

Also Published As

Publication number	Publication date
GB2395202A (en)	2004-05-19
GB0401930D0 (en)	2004-03-03

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Legal Events

Date	Code	Title	Description
2016-06-29	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 20151029