ZA8327B - Fluid operated hammer having drill bit clearance means - Google Patents

Fluid operated hammer having drill bit clearance means

Info

Publication number
ZA8327B
ZA8327B ZA8327A ZA8327A ZA8327B ZA 8327 B ZA8327 B ZA 8327B ZA 8327 A ZA8327 A ZA 8327A ZA 8327 A ZA8327 A ZA 8327A ZA 8327 B ZA8327 B ZA 8327B
Authority
ZA
South Africa
Prior art keywords
drill bit
fluid operated
operated hammer
clearance means
bit clearance
Prior art date
Application number
ZA8327A
Other languages
English (en)
Inventor
Ian Graeme Rear
Original Assignee
Ian Graeme Rear
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 Ian Graeme Rear filed Critical Ian Graeme Rear
Publication of ZA8327B publication Critical patent/ZA8327B/xx

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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers

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)
ZA8327A 1982-01-04 1983-01-04 Fluid operated hammer having drill bit clearance means ZA8327B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPF215082 1982-01-04

Publications (1)

Publication Number Publication Date
ZA8327B true ZA8327B (en) 1983-10-26

Family

ID=3769318

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA8327A ZA8327B (en) 1982-01-04 1983-01-04 Fluid operated hammer having drill bit clearance means

Country Status (3)

Country Link
EP (1) EP0083507A3 (de)
AU (1) AU9176182A (de)
ZA (1) ZA8327B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4932483A (en) * 1988-02-16 1990-06-12 Ian G. Rear Down hole hammer
AUPO698197A0 (en) * 1997-05-26 1997-06-19 Sds Digger Tools Pty Ltd A percussive hammer drill

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3944003A (en) * 1972-04-24 1976-03-16 Bakerdrill, Inc. Bore hole air hammer
US4015670A (en) * 1974-09-06 1977-04-05 Ian Graeme Rear Fluid operated hammer
US4084647A (en) * 1976-07-01 1978-04-18 William Lister Pneumatic percussion hammer
GB1552975A (en) * 1976-12-07 1979-09-19 Atlas Copco Ab Drills
US4446929A (en) * 1979-06-11 1984-05-08 Dresser Industries, Inc. Fluid operated rock drill hammer
US4312412A (en) * 1979-08-06 1982-01-26 Dresser Industries, Inc. Fluid operated rock drill hammer
DE3170268D1 (en) * 1980-07-01 1985-06-05 Greame Rear Ian Improved fluid operated hammer
ZA816261B (en) * 1980-09-11 1982-09-29 Ian Graeme Rear Fluid operated hammer

Also Published As

Publication number Publication date
EP0083507A3 (de) 1983-09-07
EP0083507A2 (de) 1983-07-13
AU9176182A (en) 1983-07-14

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