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AU493847B2 - Improved pneumatic percussion hammer - Google Patents

Improved pneumatic percussion hammer

Info

Publication number
AU493847B2
AU493847B2 AU14984/76A AU1498476A AU493847B2 AU 493847 B2 AU493847 B2 AU 493847B2 AU 14984/76 A AU14984/76 A AU 14984/76A AU 1498476 A AU1498476 A AU 1498476A AU 493847 B2 AU493847 B2 AU 493847B2
Authority
AU
Australia
Prior art keywords
percussion hammer
improved pneumatic
pneumatic percussion
improved
hammer
Prior art date
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
AU14984/76A
Other versions
AU1498476A (en
Inventor
William Lister
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AU14984/76A priority Critical patent/AU493847B2/en
Application granted granted Critical
Publication of AU493847B2 publication Critical patent/AU493847B2/en
Publication of AU1498476A publication Critical patent/AU1498476A/en
Expired legal-status Critical Current

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)
AU14984/76A 1975-07-01 1975-07-01 Improved pneumatic percussion hammer Expired AU493847B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU14984/76A AU493847B2 (en) 1975-07-01 1975-07-01 Improved pneumatic percussion hammer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU14984/76A AU493847B2 (en) 1975-07-01 1975-07-01 Improved pneumatic percussion hammer

Publications (2)

Publication Number Publication Date
AU493847B2 true AU493847B2 (en) 1977-12-22
AU1498476A AU1498476A (en) 1977-12-22

Family

ID=3705079

Family Applications (1)

Application Number Title Priority Date Filing Date
AU14984/76A Expired AU493847B2 (en) 1975-07-01 1975-07-01 Improved pneumatic percussion hammer

Country Status (1)

Country Link
AU (1) AU493847B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0327575A1 (en) * 1986-10-24 1989-08-16 LISTER, William A pneumatic percussion hammer
CN110159187A (en) * 2019-07-10 2019-08-23 长江大学 A kind of High air-pressure DTH hammer

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU568975B2 (en) * 1985-04-04 1988-01-14 Ian Graeme Rear Fluid operated down hole hammer
ZA904380B (en) * 1989-06-09 1991-03-27 Lister William Rock drilling bit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0327575A1 (en) * 1986-10-24 1989-08-16 LISTER, William A pneumatic percussion hammer
EP0327575A4 (en) * 1986-10-24 1990-02-20 William Lister A pneumatic percussion hammer.
CN110159187A (en) * 2019-07-10 2019-08-23 长江大学 A kind of High air-pressure DTH hammer

Also Published As

Publication number Publication date
AU1498476A (en) 1977-12-22

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