CA962995A - Pressure equalizing system for rock bits - Google Patents

Pressure equalizing system for rock bits

Info

Publication number: CA962995A
Authority: CA; Canada
Prior art keywords: pressure equalizing; equalizing system; rock bits; rock; bits
Prior art date: 1971-08-12
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

CA144,699A

Other versions

CA144699S (en

Inventor

George A. Cason (Jr.)

James W. Simmons

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.)

Dresser Industries Inc

Original Assignee

Dresser Industries Inc

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.)

1971-08-12

Filing date

1972-06-14

Publication date

1975-02-18

1972-06-14 Application filed by Dresser Industries Inc filed Critical Dresser Industries Inc

1975-02-18 Application granted granted Critical

1975-02-18 Publication of CA962995A publication Critical patent/CA962995A/en

Status Expired legal-status Critical Current

Links

Classifications

- 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
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
- F16C33/6607—Retaining the grease in or near the bearing
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- 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
- F16C33/30—Parts of ball or roller bearings
- F16C33/66—Special parts or details in view of lubrication
- F16C33/6603—Special parts or details in view of lubrication with grease as lubricant
- F16C33/6622—Details of supply and/or removal of the grease, e.g. purging grease
- 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

CA144,699A 1971-08-12 1972-06-14 Pressure equalizing system for rock bits Expired CA962995A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US17105371A	1971-08-12	1971-08-12

Publications (1)

Publication Number	Publication Date
CA962995A true CA962995A (en)	1975-02-18

Family

ID=22622305

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA144,699A Expired CA962995A (en)	1971-08-12	1972-06-14	Pressure equalizing system for rock bits

Country Status (8)

Country	Link
US (1)	US3739864A (en)
JP (1)	JPS4826603A (en)
AR (1)	AR198625A1 (en)
CA (1)	CA962995A (en)
DE (1)	DE2231745A1 (en)
FR (1)	FR2148570B1 (en)
GB (1)	GB1370220A (en)
IT (1)	IT961338B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3847234A (en) *	1972-06-01	1974-11-12	Reed Tool Co	Pressure relief device for drill bit lubrication system
DE2929349A1 (en) *	1979-07-20	1981-01-29	Blohm Voss Ag	FOR UNDERWATER OPERATION SEALED STORAGE OF ROTATING PARTS OF A HOIST
US4431066A (en) *	1981-02-18	1984-02-14	Hughes Tool Company	Stressed relieved bit leg for an earth boring bit
JPS58138834A (en) *	1982-02-10	1983-08-17	Nippon Sagiyousen Kyokai	Walking type dredger
US5027911A (en) *	1989-11-02	1991-07-02	Dresser Industries, Inc.	Double seal with lubricant gap between seals for sealed rotary drill bits
US5381868A (en) *	1993-10-08	1995-01-17	Triumph*Lor Inc	Sealed bearing roller reamer
US5513711A (en) *	1994-08-31	1996-05-07	Williams; Mark E.	Sealed and lubricated rotary cone drill bit having improved seal protection
US5441120A (en) *	1994-08-31	1995-08-15	Dresser Industries, Inc.	Roller cone rock bit having a sealing system with double elastomer seals
US5513715A (en) *	1994-08-31	1996-05-07	Dresser Industries, Inc.	Flat seal for a roller cone rock bit
US5636700A (en) *	1995-01-03	1997-06-10	Dresser Industries, Inc.	Roller cone rock bit having improved cutter gauge face surface compacts and a method of construction
US5709278A (en) *	1996-01-22	1998-01-20	Dresser Industries, Inc.	Rotary cone drill bit with contoured inserts and compacts
US5722497A (en) *	1996-03-21	1998-03-03	Dresser Industries, Inc.	Roller cone gage surface cutting elements with multiple ultra hard cutting surfaces
US6619412B2 (en)	1996-09-09	2003-09-16	Smith International, Inc.	Protected lubricant reservoir for sealed earth boring drill bit
US6116357A (en) *	1996-09-09	2000-09-12	Smith International, Inc.	Rock drill bit with back-reaming protection
US6698536B2 (en)	2001-10-01	2004-03-02	Smith International, Inc.	Roller cone drill bit having lubrication contamination detector and lubrication positive pressure maintenance system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3127942A (en) *	1962-01-02	1964-04-07	Smith Ind International Inc	Bearing closure for rotary rock bit
US3476195A (en) *	1968-11-15	1969-11-04	Hughes Tool Co	Lubricant relief valve for rock bits
US3534823A (en) *	1969-02-28	1970-10-20	Murphy Ind Inc G W	Drill bit

1971
- 1971-08-12 US US00171053A patent/US3739864A/en not_active Expired - Lifetime
1972
- 1972-06-14 CA CA144,699A patent/CA962995A/en not_active Expired
- 1972-06-26 DE DE2231745A patent/DE2231745A1/en not_active Withdrawn
- 1972-07-10 IT IT51454/72A patent/IT961338B/en active
- 1972-07-11 AR AR243017A patent/AR198625A1/en active
- 1972-07-21 GB GB3425772A patent/GB1370220A/en not_active Expired
- 1972-08-07 JP JP47079017A patent/JPS4826603A/ja active Pending
- 1972-08-09 FR FR7228762A patent/FR2148570B1/fr not_active Expired

Also Published As

Publication number	Publication date
JPS4826603A (en)	1973-04-07
IT961338B (en)	1973-12-10
AU4385972A (en)	1974-01-03
DE2231745A1 (en)	1973-02-22
FR2148570A1 (en)	1973-03-23
US3739864A (en)	1973-06-19
AR198625A1 (en)	1974-07-15
GB1370220A (en)	1974-10-16
FR2148570B1 (en)	1976-05-21

Publication	Publication Date	Title
AU473685B2 (en)	1976-07-01	Subsea production system
CA967552A (en)	1975-05-13	Pressure equalizing system for rock bits
CA962995A (en)	1975-02-18	Pressure equalizing system for rock bits
CA960707A (en)	1975-01-07	Mining method
CA975746A (en)	1975-10-07	Rock drill
CA981368A (en)	1976-01-06	System for performing multiple operations
CA938515A (en)	1973-12-18	Independently rotated pneumatic rock drill
AU478387B2 (en)	1974-01-03	Pressure equalizing system for rock bits
CA870463A (en)	1971-05-11	Bits for rock drills
CA888043A (en)	1971-12-14	Control system for rock drills
CA888585A (en)	1971-12-21	Control system for rock drills
CA884178A (en)	1971-10-26	Control system for rock drills
CA969170A (en)	1975-06-10	Drilling system
CA969169A (en)	1975-06-10	Drilling system
CA865479A (en)	1971-03-09	High pressure hydraulic system
CA942186A (en)	1974-02-19	Solution mining method
CA881712A (en)	1971-09-21	Borehole telemetering system
CA871853A (en)	1971-05-25	Well logging system
CA861638A (en)	1971-01-19	Well logging system
CA998780A (en)	1976-10-19	Well logging system
CA890028A (en)	1972-01-04	Bit sync recovery system
CA873753A (en)	1971-06-22	Rock drill
CA886915A (en)	1971-11-30	Subsea braking system
CA874846A (en)	1971-07-06	Rock drilling apparatus
CA839157A (en)	1970-04-14	Drilling fluid system