DK363976A - DRILL CROWNS - Google Patents

DRILL CROWNS

Info

Publication number: DK363976A
Authority: DK; Denmark
Prior art keywords: drill crowns; crowns; drill
Prior art date: 1975-08-13

Application number

DK363976A

Other languages

Danish (da)

Inventor

H W Murdoch

Original Assignee

Reed 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.)

1975-08-13

Filing date

1976-08-12

Publication date

1977-02-14

1975-08-13 Priority claimed from US05/604,264 external-priority patent/US3990751A/en

1976-08-12 Application filed by Reed Tool Co filed Critical Reed Tool Co

1977-02-14 Publication of DK363976A publication Critical patent/DK363976A/en

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
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C17/00—Sliding-contact bearings for exclusively rotary movement
- F16C17/12—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load
- F16C17/18—Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with floating brasses or brushing, rotatable at a reduced speed
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
- F16C33/122—Multilayer structures of sleeves, washers or liners
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2352/00—Apparatus for drilling

Landscapes

Engineering & Computer Science (AREA)
General 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)
General Life Sciences & Earth Sciences (AREA)
Geochemistry & Mineralogy (AREA)
Physics & Mathematics (AREA)
Earth Drilling (AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

DK363976A 1975-08-13 1976-08-12 DRILL CROWNS DK363976A (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US05/604,264 US3990751A (en)	1975-08-13	1975-08-13	Drill bit
US05/695,505 US4074922A (en)	1975-08-13	1976-06-11	Drill bit

Publications (1)

Publication Number	Publication Date
DK363976A true DK363976A (en)	1977-02-14

Family

ID=27084622

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DK363976A DK363976A (en)	1975-08-13	1976-08-12	DRILL CROWNS

Country Status (16)

Country	Link
JP (1)	JPS5222501A (en)
AT (1)	AT352052B (en)
AU (1)	AU502035B2 (en)
BR (1)	BR7605280A (en)
CA (1)	CA1039266A (en)
CH (1)	CH610982A5 (en)
DE (1)	DE2636179A1 (en)
DK (1)	DK363976A (en)
ES (1)	ES450637A1 (en)
FR (1)	FR2321034A1 (en)
GB (1)	GB1521833A (en)
IT (1)	IT1073442B (en)
MX (1)	MX143147A (en)
NL (1)	NL7608964A (en)
NO (1)	NO762541L (en)
SE (1)	SE7609015L (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4402617A (en) *	1981-05-12	1983-09-06	Dresser Industries, Inc.	Thin wall sintered bushing for a rock bit
DE3207237C2 (en) *	1982-02-25	1984-06-07	Mannesmann AG, 4000 Düsseldorf	Threaded connection for oilfield pipes
GB2127071B (en) *	1982-09-22	1985-09-18	Reed Rock Bit Co	Friction bearing assembly for a roller cutter drill bit
DE3429897C2 (en) *	1984-08-14	1991-07-18	Maho Werkzeugmaschinenbau Babel & Co, 8962 Pfronten	Adjustable straight line for machine tools in particular
JPH0533453Y2 (en) *	1989-05-30	1993-08-25
US5016719A (en) *	1990-01-24	1991-05-21	Western Rock Bit Company Limited	Rotary cone type rock bits
CA2009987A1 (en) *	1990-02-14	1991-08-14	Kenneth M. White	Journal bearing type rock bit

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2465329A (en) *	1944-05-20	1949-03-22	Indium Corp America	Indium treated copper clad bearing and like articles and method of making the same
US3150901A (en) *	1961-11-17	1964-09-29	Gen Electric	Bearing surfaces
US3235316A (en) *	1963-04-22	1966-02-15	Hughes Tool Co	Journal bearing with alternating surface areas of wear resistant and antigalling materials
US3784264A (en) *	1971-03-02	1974-01-08	Dresser Ind	Earth boring bit bearing system having a pitted bearing surface
US3721307A (en) *	1971-04-27	1973-03-20	Murphy Ind Inc	Drill bit bearings
FR2182287A5 (en) *	1972-04-25	1973-12-07	Creusot Loire
US3984158A (en) *	1973-09-10	1976-10-05	Dresser Industries, Inc.	Journal and pilot bearings with alternating surface areas of wear resistant and anti-galling materials
US3866987A (en) *	1974-01-14	1975-02-18	Smith International	Drill bit with laminated friction bearing
FR2300931A1 (en) *	1975-02-14	1976-09-10	Creusot Loire	Antiseizure plain bearings - particularly with double bearing surface in rotary drilling bits

1976
- 1976-07-21 NO NO762541A patent/NO762541L/no unknown
- 1976-07-29 GB GB31723/76A patent/GB1521833A/en not_active Expired
- 1976-07-30 MX MX165726A patent/MX143147A/en unknown
- 1976-08-09 JP JP51094067A patent/JPS5222501A/en active Pending
- 1976-08-10 CA CA258,777A patent/CA1039266A/en not_active Expired
- 1976-08-11 IT IT50841/76A patent/IT1073442B/en active
- 1976-08-11 DE DE19762636179 patent/DE2636179A1/en not_active Withdrawn
- 1976-08-11 FR FR7624513A patent/FR2321034A1/en active Granted
- 1976-08-12 AU AU16804/76A patent/AU502035B2/en not_active Expired
- 1976-08-12 ES ES450637A patent/ES450637A1/en not_active Expired
- 1976-08-12 CH CH1029076A patent/CH610982A5/en not_active IP Right Cessation
- 1976-08-12 NL NL7608964A patent/NL7608964A/en not_active Application Discontinuation
- 1976-08-12 BR BR7605280A patent/BR7605280A/en unknown
- 1976-08-12 AT AT601176A patent/AT352052B/en not_active IP Right Cessation
- 1976-08-12 SE SE7609015A patent/SE7609015L/en unknown
- 1976-08-12 DK DK363976A patent/DK363976A/en not_active Application Discontinuation

Also Published As

Publication number	Publication date
ATA601176A (en)	1979-02-15
AU502035B2 (en)	1979-07-12
AT352052B (en)	1979-08-27
AU1680476A (en)	1978-02-16
BR7605280A (en)	1977-08-09
SE7609015L (en)	1977-02-14
CA1039266A (en)	1978-09-26
CH610982A5 (en)	1979-05-15
FR2321034B1 (en)	1982-10-29
GB1521833A (en)	1978-08-16
FR2321034A1 (en)	1977-03-11
NO762541L (en)	1977-02-15
IT1073442B (en)	1985-04-17
DE2636179A1 (en)	1977-02-24
NL7608964A (en)	1977-02-15
JPS5222501A (en)	1977-02-19
MX143147A (en)	1981-03-25
ES450637A1 (en)	1977-07-16

Legal Events

Date	Code	Title	Description
1985-08-26	AHS	Application shelved for other reasons than non-payment

Publication	Publication Date	Title
SE417854B (en)	1981-04-13	RIG
AT374677B (en)	1984-05-25	TOOTHBRUSH
AT345759B (en)	1978-10-10	DEEPHOLE DRILL
BR7606387A (en)	1977-06-21	DRILLING SET
FR2297609A1 (en)	1976-08-13	PACEMAKER
BR7603491A (en)	1977-01-04	DRILLING SET
FR2332019A1 (en)	1977-06-17	NEW BENZISOTHIAZOLONES
IT1062269B (en)	1984-02-27	TOOL
NO146045C (en)	1982-08-04	ORAL ROENTGENCONTRACTOR FOR CHOLECYSTANGIOGRAPHY
AT343879B (en)	1978-06-26	DRILLING UNIT
NL7607835A (en)	1977-01-18	DENTAL ALGAAM.
FR2336918A1 (en)	1977-07-29	DENTAL AMALGAMES
SE7613407L (en)	1977-06-05	CONSTRUCTION ASSOCIATION
ATA253476A (en)	1977-12-15	DENTAL HANDSTUCK
DK89376A (en)	1976-09-06	DRILL
SE414700B (en)	1980-08-18	articulator
SE422898B (en)	1982-04-05	reaming
FR2299849A1 (en)	1976-09-03	PACEMAKER
SE7601072L (en)	1976-08-04	DENTAL CONSTRUCTION
IT1057702B (en)	1982-03-30	DENTISTIC HANDPIECE
DK363976A (en)	1977-02-14	DRILL CROWNS
IT1071275B (en)	1985-04-02	DENTISTIC HANDPIECE
IT1028611B (en)	1979-02-10	DEBAVER BEVELLER TOOL
FR2299028A1 (en)	1976-08-27	NEW
AT338861B (en)	1977-09-26	TUBBING