GB9102944D0 - Button sharpening - Google Patents

Button sharpening

Info

Publication number: GB9102944D0
Authority: GB; United Kingdom
Prior art keywords: sharpening; button; button sharpening
Prior art date: 1990-02-14
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn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

GB919102944A

Other versions

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.)

Boart International Ltd

Original Assignee

Boart International 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.)

1990-02-14

Filing date

1991-02-12

Publication date

1991-03-27

1991-02-12 Application filed by Boart International Ltd filed Critical Boart International Ltd

1991-03-27 Publication of GB9102944D0 publication Critical patent/GB9102944D0/en

1991-08-21 Publication of GB2240940A publication Critical patent/GB2240940A/en

Status Withdrawn legal-status Critical Current

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
- B24B3/33—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills of drills for stone
- 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
- E21B10/52—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type with chisel- or button-type inserts

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Geology (AREA)
Life Sciences & Earth Sciences (AREA)
Mining & Mineral Resources (AREA)
Environmental & Geological Engineering (AREA)
Fluid Mechanics (AREA)
Physics & Mathematics (AREA)
General Life Sciences & Earth Sciences (AREA)
Geochemistry & Mineralogy (AREA)
Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Polishing Bodies And Polishing Tools (AREA)
Milling, Broaching, Filing, Reaming, And Others (AREA)

GB9102944A 1990-02-14 1991-02-12 Drill bit button sharpening Withdrawn GB2240940A (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
ZA901118		1990-02-14
ZA906616		1990-08-21

Publications (2)

Publication Number	Publication Date
GB9102944D0 true GB9102944D0 (en)	1991-03-27
GB2240940A GB2240940A (en)	1991-08-21

Family

ID=67396391

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB9102944A Withdrawn GB2240940A (en)	1990-02-14	1991-02-12	Drill bit button sharpening

Country Status (12)

Country	Link
KR (1)	KR910015368A (en)
AU (1)	AU7099791A (en)
CA (1)	CA2036284A1 (en)
DE (1)	DE4104551A1 (en)
FI (1)	FI910706L (en)
FR (1)	FR2658106A1 (en)
GB (1)	GB2240940A (en)
IE (1)	IE910433A1 (en)
IT (1)	IT1244731B (en)
NO (1)	NO910583L (en)
SE (1)	SE9100404L (en)
ZW (1)	ZW1091A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE463754B (en) *	1989-05-24	1991-01-21	Inovac Ab	DEVICE FOR HANDHALLEN GRINDING MACHINE FOR GRIPPING CUTTER DRILLS

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3442342A (en) *	1967-07-06	1969-05-06	Hughes Tool Co	Specially shaped inserts for compact rock bits,and rolling cutters and rock bits using such inserts
US3830020A (en) *	1969-10-22	1974-08-20	S Gomi	Grinding diamond wheel, and method of making same
US4254840A (en) *	1978-10-05	1981-03-10	Reed Tool Company	Drill bit insert
SE434356B (en) *	1981-11-24	1984-07-23	Finsliparna Ab	Arrangement for grinding of drill bits
FI67500C (en) *	1983-09-12	1985-04-10	Airam Ab Oy	ANORDNING FOER VAESSNING AV STIFTKRONA FOER BERGSBORR
GB2193456B (en) *	1986-07-25	1990-06-06	Boart Int Ltd	Restoration of drill buttons
US4722405A (en) *	1986-10-01	1988-02-02	Dresser Industries, Inc.	Wear compensating rock bit insert

1991
- 1991-02-11 SE SE9100404A patent/SE9100404L/en not_active Application Discontinuation
- 1991-02-11 ZW ZW10/91A patent/ZW1091A1/en unknown
- 1991-02-11 IE IE043391A patent/IE910433A1/en unknown
- 1991-02-12 AU AU70997/91A patent/AU7099791A/en not_active Abandoned
- 1991-02-12 GB GB9102944A patent/GB2240940A/en not_active Withdrawn
- 1991-02-13 CA CA002036284A patent/CA2036284A1/en not_active Abandoned
- 1991-02-13 FI FI910706A patent/FI910706L/en unknown
- 1991-02-13 IT ITMI910364A patent/IT1244731B/en active IP Right Grant
- 1991-02-13 NO NO91910583A patent/NO910583L/en unknown
- 1991-02-13 KR KR1019910002427A patent/KR910015368A/en not_active Application Discontinuation
- 1991-02-14 DE DE4104551A patent/DE4104551A1/en not_active Withdrawn
- 1991-02-14 FR FR9101778A patent/FR2658106A1/en active Pending

Also Published As

Publication number	Publication date
IE910433A1 (en)	1991-09-11
AU7099791A (en)	1991-08-15
ITMI910364A1 (en)	1992-08-13
FR2658106A1 (en)	1991-08-16
IT1244731B (en)	1994-08-08
SE9100404D0 (en)	1991-02-11
ITMI910364A0 (en)	1991-02-13
KR910015368A (en)	1991-09-30
DE4104551A1 (en)	1991-08-22
SE9100404L (en)	1991-08-15
NO910583D0 (en)	1991-02-13
FI910706A0 (en)	1991-02-13
GB2240940A (en)	1991-08-21
ZW1091A1 (en)	1991-05-08
FI910706L (en)	1991-08-15
CA2036284A1 (en)	1991-08-15
NO910583L (en)	1991-08-15

Publication	Publication Date	Title
GB2243571B (en)	1994-05-25	Vibration-cushioned handle
GB9114833D0 (en)	1991-08-28	Improved doll-carriages
EP0453873A3 (en)	1992-06-24	Keylockable buckle
EP0550668A4 (en)	1993-10-13	Ibuprofen-antihistamine combinations
EP0492221A3 (en)	1992-07-29	Buckle
GB8928798D0 (en)	1990-02-28	Button
GB9015164D0 (en)	1990-08-29	Razor
GB9016626D0 (en)	1990-09-12	Knives
AU112976S (en)	1991-11-28	Handle
AU112236S (en)	1991-09-24	Time piece
ZW1091A1 (en)	1991-05-08	Button sharpening
GB9002313D0 (en)	1990-04-04	Razor
ZM591A1 (en)	1991-10-31	Button sharpening
ZA91641B (en)	1991-11-27	Button sharpening
AU112975S (en)	1991-11-28	Handle
CA67552S (en)	1990-12-04	Hand
PHUM7836Z (en)	1994-09-21	Abrasive implement
AU112483S (en)	1991-10-21	Sander
CA68727S (en)	1991-06-18	Knife sharpener
GB2243985B (en)	1994-05-11	Buttons
GB8907034D0 (en)	1989-05-10	Button
ZA897121B (en)	1990-07-25	Button
ZA914291B (en)	1992-03-25	Razor
CA65705S (en)	1990-03-21	Handle
CA65827S (en)	1990-04-02	Handle

Legal Events

Date	Code	Title	Description
1994-11-16	WAP	Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)