GB1542780A - Rock bit assembly and welding method - Google Patents

Rock bit assembly and welding method

Info

Publication number: GB1542780A
Authority: GB; United Kingdom
Prior art keywords: welding method; bit assembly; rock bit; rock; assembly
Prior art date: 1977-02-28
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.): Expired

Application number

GB38600/77A

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.)

Hughes Tool Co

Original Assignee

Hughes Tool Co

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.)

1977-02-28

Filing date

1977-09-15

Publication date

1979-03-28

1977-09-15 Application filed by Hughes Tool Co filed Critical Hughes Tool Co

1979-03-28 Publication of GB1542780A publication Critical patent/GB1542780A/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
- E21B10/08—Roller bits
- E21B10/20—Roller bits characterised by detachable or adjustable parts, e.g. legs or axles

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)
Drilling And Boring (AREA)

GB38600/77A 1977-02-28 1977-09-15 Rock bit assembly and welding method Expired GB1542780A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US77310077A	1977-02-28	1977-02-28

Publications (1)

Publication Number	Publication Date
GB1542780A true GB1542780A (en)	1979-03-28

Family

ID=25097208

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB38600/77A Expired GB1542780A (en)	1977-02-28	1977-09-15	Rock bit assembly and welding method

Country Status (6)

Country	Link
JP (1)	JPS53106354A (en)
BR (1)	BR7705570A (en)
CA (1)	CA1049816A (en)
FR (1)	FR2381592A1 (en)
GB (1)	GB1542780A (en)
SE (1)	SE428437B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN104607854A (en) *	2014-12-31	2015-05-13	中国地质大学（武汉）	Automatic welding device used for PDC anchor bolt drilling bit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN108747154B (en) *	2018-06-28	2020-02-18	鄂尔多斯市神传矿用设备制造有限公司	Cutting tooth installation positioner and use method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3907191A (en) *	1973-10-24	1975-09-23	Dresser Ind	Method of constructing a rotary rock bit
US3987859A (en) *	1973-10-24	1976-10-26	Dresser Industries, Inc.	Unitized rotary rock bit

1977
- 1977-08-08 CA CA284,304A patent/CA1049816A/en not_active Expired
- 1977-08-22 BR BR7705570A patent/BR7705570A/en unknown
- 1977-08-29 JP JP10276477A patent/JPS53106354A/en active Pending
- 1977-09-15 GB GB38600/77A patent/GB1542780A/en not_active Expired
- 1977-09-22 SE SE7710618A patent/SE428437B/en unknown
- 1977-09-22 FR FR7728559A patent/FR2381592A1/en not_active Withdrawn

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN104607854A (en) *	2014-12-31	2015-05-13	中国地质大学（武汉）	Automatic welding device used for PDC anchor bolt drilling bit
CN104607854B (en) *	2014-12-31	2016-03-02	中国地质大学（武汉）	A kind of automatic soldering device for PDC anchor bit

Also Published As

Publication number	Publication date
FR2381592A1 (en)	1978-09-22
CA1049816A (en)	1979-03-06
JPS53106354A (en)	1978-09-16
SE7710618L (en)	1978-08-29
BR7705570A (en)	1978-09-12
SE428437B (en)	1983-07-04

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Legal Events

Date	Code	Title	Description
1979-06-13	PS	Patent sealed [section 19, patents act 1949]
1986-05-14	PCNP	Patent ceased through non-payment of renewal fee