SE7703246L - Bergborrkrona - Google Patents

Bergborrkrona

Info

Publication number: SE7703246L
Authority: SE; Sweden
Prior art keywords: bergborrkrona
Prior art date: 1976-04-12

Application number

SE7703246A

Other languages

English (en)

Other versions

SE433958B (sv

Inventor

C E Johansson

Original Assignee

Skf Ind Trading & Dev

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

1977-03-22

Publication date

1977-10-13

1977-03-22 Application filed by Skf Ind Trading & Dev filed Critical Skf Ind Trading & Dev

1977-10-13 Publication of SE7703246L publication Critical patent/SE7703246L/sv

1984-06-25 Publication of SE433958B publication Critical patent/SE433958B/sv

Links

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)

SE7703246A 1976-04-12 1977-03-22 Bergborrkrona SE433958B (sv)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NLAANVRAGE7603835,A NL179409C (nl)	1976-04-12	1976-04-12	Boorbeitel voor gesteente.

Publications (2)

Publication Number	Publication Date
SE7703246L true SE7703246L (sv)	1977-10-13
SE433958B SE433958B (sv)	1984-06-25

Family

ID=19826003

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE7703246A SE433958B (sv)	1976-04-12	1977-03-22	Bergborrkrona

Country Status (12)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2755591C2 (de) *	1977-12-14	1985-11-07	SKF GmbH, 8720 Schweinfurt	Rollenmeißel mit kegelig ausgebildeten Schneidrollen
DE2824202A1 (de) *	1978-06-02	1979-12-06	Sandvik Gmbh	Rollenmeissel mit mehreren kegeligen schneidrollen

Family Cites Families (10)

* 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 (fr) *	1952-04-02	1954-02-02	Materiel De Forage Soc De Fab	Dispositif de montage pour outils à molettes
US2831660A (en) *	1956-04-16	1958-04-22	Nat Oil Tool Co Inc	Lubricated well drill
DE1178806B (de) *	1961-05-22	1964-10-01	Hughes Tool Co	Rollenmeissel fuer ein mit gasartiger Spuelung arbeitendes Bohrverfahren
US3307645A (en) *	1964-10-20	1967-03-07	Exxon Production Research Co	Reverse bearing bit
NL179154C (nl)	1975-02-17	1986-07-16	Skf Ind Trading & Dev	Rotary boorkop.
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/xx not_active IP Right Cessation
1977
- 1977-03-22 SE SE7703246A patent/SE433958B/sv unknown
- 1977-03-24 AU AU23597/77A patent/AU514631B2/en not_active Expired
- 1977-04-06 NO NO771246A patent/NO771246L/no unknown
- 1977-04-06 BR BR7702233A patent/BR7702233A/pt unknown
- 1977-04-07 DE DE2715788A patent/DE2715788C2/de not_active Expired
- 1977-04-07 FR FR7710618A patent/FR2348358A1/fr active Granted
- 1977-04-07 CA CA275,858A patent/CA1064014A/en not_active Expired
- 1977-04-12 ZA ZA00772203A patent/ZA772203B/xx unknown
- 1977-04-12 JP JP52041023A patent/JPS5936076B2/ja not_active Expired
- 1977-04-12 IT IT22349/77A patent/IT1076714B/it active
- 1977-04-12 GB GB15169/77A patent/GB1563533A/en not_active Expired

Also Published As

Publication number	Publication date
NO771246L (no)	1977-10-13
FR2348358B3 (sv)	1980-01-18
BR7702233A (pt)	1977-12-13
AU2359777A (en)	1978-09-28
NL7603835A (nl)	1977-10-14
ZA772203B (en)	1978-03-29
NL179409B (nl)	1986-04-01
DE2715788A1 (de)	1977-10-20
FR2348358A1 (fr)	1977-11-10
JPS5936076B2 (ja)	1984-09-01
AU514631B2 (en)	1981-02-19
DE2715788C2 (de)	1986-06-26
SE433958B (sv)	1984-06-25
JPS52145302A (en)	1977-12-03
NL179409C (nl)	1986-09-01
IT1076714B (it)	1985-04-27
GB1563533A (en)	1980-03-26
CA1064014A (en)	1979-10-09

Publication	Publication Date	Title
AT344629B (de)	1978-08-10	Siebfeld
AT353866B (de)	1979-12-10	Hoergeraet
AT349288B (de)	1979-03-26	Ruehrwerksmuehle
AT359262B (de)	1980-10-27	Raffstore
FI772436A7 (fi)	1978-02-17	Mekanisk reglerbart valsunderstoed
ATA505377A (de)	1979-09-15	Ruehrwerksmuehle
SE434502B (sv)	1984-07-30	Sugfangare
BE851915A (fr)	1977-08-29	Aminoalkylpyrrolobenzoxo-aza-alcanes
IT1079805B (it)	1985-05-13	Beta-azolilchetoni
ATA206477A (de)	1984-11-15	Halmerntegeraet
AR211563A1 (es)	1978-01-30	Electrolizador
AT370310B (de)	1983-03-25	Elektrokardioskop
AT346259B (de)	1978-11-10	Webschaft
BE850832A (fr)	1977-07-28	Mofbuis
AT349360B (de)	1979-04-10	Unmagnetische tretmine
BE846205A (fr)	1977-03-15	M-alkyldiphenylamines
AT346734B (de)	1978-11-27	Springmine
AT358854B (de)	1980-10-10	Kruemelwalze
AT356609B (de)	1980-05-12	Kristallisator
BE851079A (nl)	1977-08-04	Conteneur repliable
BE859831A (fr)	1978-04-18	Antiagregants
AT346041B (de)	1978-10-25	Sheddach
AT356871B (de)	1980-05-27	Saegegatter
AT371411B (de)	1983-06-27	Skibob
DK32777A (da)	1977-07-28	Fluidumfreven vegrendeskerer