ZA956335B - Inner sleeve for a fluid operated piston type hammer - Google Patents

Inner sleeve for a fluid operated piston type hammer

Info

Publication number
ZA956335B
ZA956335B ZA956335A ZA956335A ZA956335B ZA 956335 B ZA956335 B ZA 956335B ZA 956335 A ZA956335 A ZA 956335A ZA 956335 A ZA956335 A ZA 956335A ZA 956335 B ZA956335 B ZA 956335B
Authority
ZA
South Africa
Prior art keywords
inner sleeve
piston type
fluid operated
operated piston
type hammer
Prior art date
Application number
ZA956335A
Inventor
Frederick Graham Moir
John Dewar
Original Assignee
Sds Pacific Pte Ltd
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 Sds Pacific Pte Ltd filed Critical Sds Pacific Pte Ltd
Publication of ZA956335B publication Critical patent/ZA956335B/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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers
ZA956335A 1994-08-01 1995-07-28 Inner sleeve for a fluid operated piston type hammer ZA956335B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPM7202A AUPM720294A0 (en) 1994-08-01 1994-08-01 Inner sleeve for a fluid operated piston type hammer

Publications (1)

Publication Number Publication Date
ZA956335B true ZA956335B (en) 1996-03-25

Family

ID=3781724

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA956335A ZA956335B (en) 1994-08-01 1995-07-28 Inner sleeve for a fluid operated piston type hammer

Country Status (3)

Country Link
AU (1) AUPM720294A0 (en)
WO (1) WO1996004455A1 (en)
ZA (1) ZA956335B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IES20000221A2 (en) * 2000-03-22 2001-10-03 Minroc Techn Promotions Ltd Down-the-hole hammer with variable pressure chamber

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2837317A (en) * 1957-02-15 1958-06-03 Ingersoll Rand Co Hole cleaning device
DE1558974A1 (en) * 1967-09-26 1970-04-02 Grossbohrloch Und Spreng Unter Ring downhole hammer
FR2044939A5 (en) * 1969-05-23 1971-02-26 Stenuick Freres
US3599730A (en) * 1970-01-07 1971-08-17 Atlas Copco Ab Pressure fluid operated percussion tool
GB1585086A (en) * 1976-07-28 1981-02-25 Compair Constr Mining Ltd Down-the-hole percussion drills
SE458132B (en) * 1985-04-09 1989-02-27 Inst Gornogo Dela Sibirskogo O SHOCKWORK WORKING DEVICE FOR DRIVING HALES IN THE MARKET
AU607419B2 (en) * 1987-05-27 1991-03-07 Ingersoll-Rand Company Down hole drill improvement

Also Published As

Publication number Publication date
AUPM720294A0 (en) 1994-08-25
WO1996004455A1 (en) 1996-02-15

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