AU3823789A - Improved post hole digger - Google Patents

Improved post hole digger

Info

Publication number
AU3823789A
AU3823789A AU38237/89A AU3823789A AU3823789A AU 3823789 A AU3823789 A AU 3823789A AU 38237/89 A AU38237/89 A AU 38237/89A AU 3823789 A AU3823789 A AU 3823789A AU 3823789 A AU3823789 A AU 3823789A
Authority
AU
Australia
Prior art keywords
post hole
hole digger
improved post
improved
digger
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.)
Granted
Application number
AU38237/89A
Other versions
AU615558B2 (en
Inventor
Ronald Kenneth Ovens
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 AU38237/89A priority Critical patent/AU615558B2/en
Publication of AU3823789A publication Critical patent/AU3823789A/en
Application granted granted Critical
Publication of AU615558B2 publication Critical patent/AU615558B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/087—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods by means of a swinging arm

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)
AU38237/89A 1988-07-21 1989-07-19 Improved post hole digger Ceased AU615558B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU38237/89A AU615558B2 (en) 1988-07-21 1989-07-19 Improved post hole digger

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPI9395 1988-07-21
AUPI939588 1988-07-21
AU38237/89A AU615558B2 (en) 1988-07-21 1989-07-19 Improved post hole digger

Publications (2)

Publication Number Publication Date
AU3823789A true AU3823789A (en) 1990-01-25
AU615558B2 AU615558B2 (en) 1991-10-03

Family

ID=25624278

Family Applications (1)

Application Number Title Priority Date Filing Date
AU38237/89A Ceased AU615558B2 (en) 1988-07-21 1989-07-19 Improved post hole digger

Country Status (1)

Country Link
AU (1) AU615558B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA927101B (en) * 1991-11-18 1993-04-01 Roger Robarts Briggs Hole digger.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3022839A (en) * 1959-07-07 1962-02-27 Holan Corp Earth boring apparatus
AU467153B2 (en) * 1970-09-15 1973-03-15 Hovapic Hire Pty. Limited A rock working implement carrier

Also Published As

Publication number Publication date
AU615558B2 (en) 1991-10-03

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