GB2174739B - Rotary soil/rock boring head - Google Patents

Rotary soil/rock boring head

Info

Publication number: GB2174739B
Authority: GB; United Kingdom
Prior art keywords: boring head; rotary soil; rock boring; rock; soil
Prior art date: 1985-05-04
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

Application number

GB08609328A

Other versions

GB2174739A (en

GB8609328D0 (en

Inventor

Walter Thies

Fritz Schafer

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 Longyear GmbH and Co KG

Original Assignee

Boart HWF GmbH and Co KG Hartmetallwerkzeugfabrik

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.)

1985-05-04

Filing date

1986-04-16

Publication date

1988-06-15

1986-04-16 Application filed by Boart HWF GmbH and Co KG Hartmetallwerkzeugfabrik filed Critical Boart HWF GmbH and Co KG Hartmetallwerkzeugfabrik

1986-05-21 Publication of GB8609328D0 publication Critical patent/GB8609328D0/en

1986-11-12 Publication of GB2174739A publication Critical patent/GB2174739A/en

1988-06-15 Application granted granted Critical

1988-06-15 Publication of GB2174739B publication Critical patent/GB2174739B/en

Status Expired 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
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades
- 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
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids

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)
Processing Of Stones Or Stones Resemblance Materials (AREA)

GB08609328A 1985-05-04 1986-04-16 Rotary soil/rock boring head Expired GB2174739B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE3516032A DE3516032C1 (en)	1985-05-04	1985-05-04	Rotary drilling head for earth and / or rock drilling

Publications (3)

Publication Number	Publication Date
GB8609328D0 GB8609328D0 (en)	1986-05-21
GB2174739A GB2174739A (en)	1986-11-12
GB2174739B true GB2174739B (en)	1988-06-15

Family

ID=6269808

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB08609328A Expired GB2174739B (en)	1985-05-04	1986-04-16	Rotary soil/rock boring head

Country Status (3)

Country	Link
DE (1)	DE3516032C1 (en)
FR (1)	FR2581417B1 (en)
GB (1)	GB2174739B (en)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1388490A (en) *	1920-09-18	1921-08-23	John R Suman	Rotary earth-boring drill
FR1065878A (en) *	1952-11-04	1954-05-31		Cutting device for perforating hammer drills
US3322218A (en) *	1965-05-04	1967-05-30	Exxon Production Research Co	Multi-port diamond bit
GB1548499A (en) *	1977-05-17	1979-07-18	Shell Int Research	Rotary drilling bit for deephole drilling and method of manufacturing the same
US4303136A (en) *	1979-05-04	1981-12-01	Smith International, Inc.	Fluid passage formed by diamond insert studs for drag bits
GB2087949B (en) *	1980-11-24	1984-11-14	Padley & Venables Ltd	Cutting tools
GB2114627B (en) *	1982-02-09	1985-05-01	Padley And Venables Limited	Mineral mining apparatus provided with dust suppressing means

1985
- 1985-05-04 DE DE3516032A patent/DE3516032C1/en not_active Expired
1986
- 1986-03-24 FR FR868604159A patent/FR2581417B1/en not_active Expired - Lifetime
- 1986-04-16 GB GB08609328A patent/GB2174739B/en not_active Expired

Also Published As

Publication number	Publication date
GB2174739A (en)	1986-11-12
FR2581417B1 (en)	1990-02-02
DE3516032C1 (en)	1986-05-07
GB8609328D0 (en)	1986-05-21
FR2581417A1 (en)	1986-11-07

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Legal Events

Date	Code	Title	Description
1997-12-03	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 19970416