AU2359777A - Rock drill bit - Google Patents

Rock drill bit

Info

Publication number: AU2359777A
Authority: AU; Australia
Prior art keywords: drill bit; rock drill; rock; bit; drill
Prior art date: 1976-04-12
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

AU23597/77A

Other versions

AU514631B2 (en

Inventor

C. E Johansson

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.)

SKF Industrial Trading and Development Co BV

Original Assignee

SKF Industrial Trading and Development Co BV

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.)

1976-04-12

Filing date

1977-03-24

Publication date

1978-09-28

1977-03-24 Application filed by SKF Industrial Trading and Development Co BV filed Critical SKF Industrial Trading and Development Co BV

1978-09-28 Publication of AU2359777A publication Critical patent/AU2359777A/en

1981-02-19 Application granted granted Critical

1981-02-19 Publication of AU514631B2 publication Critical patent/AU514631B2/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
- E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
- E21B10/24—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details
- E21B10/246—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details with pumping means for feeding lubricant
- 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
- 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
- E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
- E21B10/24—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details

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)
Rolling Contact Bearings (AREA)

AU23597/77A 1976-04-12 1977-03-24 Rock drill bit Expired AU514631B2 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
NLNL7603835		1976-04-12
NLAANVRAGE7603835,A NL179409C (en)	1976-04-12	1976-04-12	DRILL CHISEL FOR ROCK.

Publications (2)

Publication Number	Publication Date
AU2359777A true AU2359777A (en)	1978-09-28
AU514631B2 AU514631B2 (en)	1981-02-19

Family

ID=19826003

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AU23597/77A Expired AU514631B2 (en)	1976-04-12	1977-03-24	Rock drill bit

Country Status (12)

Country	Link
JP (1)	JPS5936076B2 (en)
AU (1)	AU514631B2 (en)
BR (1)	BR7702233A (en)
CA (1)	CA1064014A (en)
DE (1)	DE2715788C2 (en)
FR (1)	FR2348358A1 (en)
GB (1)	GB1563533A (en)
IT (1)	IT1076714B (en)
NL (1)	NL179409C (en)
NO (1)	NO771246L (en)
SE (1)	SE433958B (en)
ZA (1)	ZA772203B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2755591C2 (en) *	1977-12-14	1985-11-07	SKF GmbH, 8720 Schweinfurt	Roller chisel with conical cutting rollers
DE2824202A1 (en) *	1978-06-02	1979-12-06	Sandvik Gmbh	Conical cutter roller chisel for mine working - has conical roller bearing force lines converging towards cutting roller tips

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1010406A (en) *	1909-07-15	1911-11-28	Howard Robard Hughes	Roller-drill.
US1973975A (en) *	1933-07-25	1934-09-18	Anthony E Carlson	Rotary rock bit construction
US2292036A (en) *	1940-06-28	1942-08-04	Chicago Pneumatic Tool Co	Bearing for drill bits
US2339161A (en) *	1942-07-21	1944-01-11	Reed Roller Bit Co	Cone bit construction
FR1053319A (en) *	1952-04-02	1954-02-02	Materiel De Forage Soc De Fab	Mounting device for knurled tools
US2831660A (en) *	1956-04-16	1958-04-22	Nat Oil Tool Co Inc	Lubricated well drill
US3307645A (en) *	1964-10-20	1967-03-07	Exxon Production Research Co	Reverse bearing bit
NL179154C (en)	1975-02-17	1986-07-16	Skf Ind Trading & Dev	ROTARY DRILL CHUCK.
US3921735A (en) *	1975-02-27	1975-11-25	Dresser Ind	Rotary rock bit with cone mouth air screen

1976
- 1976-04-12 NL NLAANVRAGE7603835,A patent/NL179409C/en not_active IP Right Cessation
1977
- 1977-03-22 SE SE7703246A patent/SE433958B/en unknown
- 1977-03-24 AU AU23597/77A patent/AU514631B2/en not_active Expired
- 1977-04-06 NO NO771246A patent/NO771246L/en unknown
- 1977-04-06 BR BR7702233A patent/BR7702233A/en unknown
- 1977-04-07 CA CA275,858A patent/CA1064014A/en not_active Expired
- 1977-04-07 FR FR7710618A patent/FR2348358A1/en active Granted
- 1977-04-07 DE DE2715788A patent/DE2715788C2/en not_active Expired
- 1977-04-12 JP JP52041023A patent/JPS5936076B2/en not_active Expired
- 1977-04-12 IT IT22349/77A patent/IT1076714B/en active
- 1977-04-12 GB GB15169/77A patent/GB1563533A/en not_active Expired
- 1977-04-12 ZA ZA00772203A patent/ZA772203B/en unknown

Also Published As

Publication number	Publication date
NO771246L (en)	1977-10-13
DE2715788C2 (en)	1986-06-26
BR7702233A (en)	1977-12-13
JPS52145302A (en)	1977-12-03
FR2348358B3 (en)	1980-01-18
GB1563533A (en)	1980-03-26
NL7603835A (en)	1977-10-14
DE2715788A1 (en)	1977-10-20
ZA772203B (en)	1978-03-29
SE433958B (en)	1984-06-25
SE7703246L (en)	1977-10-13
NL179409C (en)	1986-09-01
AU514631B2 (en)	1981-02-19
JPS5936076B2 (en)	1984-09-01
FR2348358A1 (en)	1977-11-10
CA1064014A (en)	1979-10-09
IT1076714B (en)	1985-04-27
NL179409B (en)	1986-04-01

Publication	Publication Date	Title
AU504432B2 (en)	1979-10-11	Earth boring bit
AU514891B2 (en)	1981-03-05	A drill bit
AU515445B2 (en)	1981-04-02	Rotary drill bit
AU542437B2 (en)	1985-02-21	Rock drill
ZA774409B (en)	1978-06-28	Rock bit
AU520189B2 (en)	1982-01-21	Rock drill bit
ZA771682B (en)	1978-02-22	Rock drill
CA1034940A (en)	1978-07-18	Drill bit
AU504704B2 (en)	1979-10-25	Earth boring drill bit
AU503750B2 (en)	1979-09-20	Rock drilling bit
AU535372B2 (en)	1984-03-15	Rock drilling
AU523307B2 (en)	1982-07-22	Drilling bit
JPS5329203A (en)	1978-03-18	Rock drilling bit
GB2011286B (en)	1982-02-24	Rock drill bit
AU502035B2 (en)	1979-07-12	Drill bit
JPS52108301A (en)	1977-09-10	Rotary drill bit
AU514631B2 (en)	1981-02-19	Rock drill bit
AU519051B2 (en)	1981-11-05	Percussion rock drill
SU602666A1 (en)	1978-04-15	Rock roller bit reamer
AU500559B2 (en)	1979-05-24	A percussion drill bit
AU5318179A (en)	1981-05-21	Rock drill bit
AU507951B2 (en)	1980-03-06	Drilling rig
AU513975B2 (en)	1981-01-15	Mineral excavating bit
ZA762020B (en)	1977-04-27	Percussion drill bit
ZA761246B (en)	1977-05-25	Drilling bit