ZM3774A1 - Fluid circulation system for an earth-boring machine - Google Patents

Fluid circulation system for an earth-boring machine

Info

Publication number
ZM3774A1
ZM3774A1 ZM37/74A ZM3774A ZM3774A1 ZM 3774 A1 ZM3774 A1 ZM 3774A1 ZM 37/74 A ZM37/74 A ZM 37/74A ZM 3774 A ZM3774 A ZM 3774A ZM 3774 A1 ZM3774 A1 ZM 3774A1
Authority
ZM
Zambia
Prior art keywords
earth
circulation system
fluid circulation
boring machine
boring
Prior art date
Application number
ZM37/74A
Original Assignee
Dresser Ind
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.)
Filing date
Publication date
Application filed by Dresser Ind filed Critical Dresser Ind
Publication of ZM3774A1 publication Critical patent/ZM3774A1/en

Links

Classifications

    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/02—Swivel joints in hose-lines
ZM37/74A 1973-03-15 1974-02-22 Fluid circulation system for an earth-boring machine ZM3774A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US34143373A 1973-03-15 1973-03-15

Publications (1)

Publication Number Publication Date
ZM3774A1 true ZM3774A1 (en) 1974-10-21

Family

ID=23337553

Family Applications (1)

Application Number Title Priority Date Filing Date
ZM37/74A ZM3774A1 (en) 1973-03-15 1974-02-22 Fluid circulation system for an earth-boring machine

Country Status (6)

Country Link
AU (1) AU6596374A (en)
CA (1) CA984826A (en)
DE (1) DE2412653A1 (en)
GB (1) GB1456309A (en)
ZA (1) ZA741126B (en)
ZM (1) ZM3774A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3014641C2 (en) * 1979-04-16 1985-02-28 Hitachi Construction Machinery Co. Ltd., Tokyo Rotary connection for a drilling device with reverse flush
US4557489A (en) * 1984-03-23 1985-12-10 Borg-Warner Corporation Pressure balanced seal

Also Published As

Publication number Publication date
AU6596374A (en) 1975-08-28
DE2412653A1 (en) 1974-09-19
ZA741126B (en) 1975-01-29
CA984826A (en) 1976-03-02
GB1456309A (en) 1976-11-24

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