AU1498476A - Improved pneumatic percussion hammer - Google Patents

Improved pneumatic percussion hammer

Info

Publication number
AU1498476A
AU1498476A AU14984/76A AU1498476A AU1498476A AU 1498476 A AU1498476 A AU 1498476A AU 14984/76 A AU14984/76 A AU 14984/76A AU 1498476 A AU1498476 A AU 1498476A AU 1498476 A AU1498476 A AU 1498476A
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
AU493847B2 (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.)
LISTER W
Original Assignee
LISTER W
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 LISTER W filed Critical LISTER W
Priority to AU14984/76A priority Critical patent/AU493847B2/en
Application granted granted Critical
Publication of AU1498476A publication Critical patent/AU1498476A/en
Publication of AU493847B2 publication Critical patent/AU493847B2/en
Expired legal-status Critical Current

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
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
AU1498476A true AU1498476A (en) 1977-12-22
AU493847B2 AU493847B2 (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
AU568975B2 (en) * 1985-04-04 1988-01-14 Ian Graeme Rear Fluid operated down hole hammer
WO1990015220A1 (en) * 1989-06-09 1990-12-13 William Lister Rock drilling bit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0327575A4 (en) * 1986-10-24 1990-02-20 William Lister A pneumatic percussion hammer.

Cited By (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
WO1990015220A1 (en) * 1989-06-09 1990-12-13 William Lister Rock drilling bit

Also Published As

Publication number Publication date
AU493847B2 (en) 1977-12-22

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