AU466939B1 - Reversible percussion device for making holes inground by compacting the latter - Google Patents
Reversible percussion device for making holes inground by compacting the latterInfo
- Publication number
- AU466939B1 AU466939B1 AU28356/71A AU2835671A AU466939B1 AU 466939 B1 AU466939 B1 AU 466939B1 AU 28356/71 A AU28356/71 A AU 28356/71A AU 2835671 A AU2835671 A AU 2835671A AU 466939 B1 AU466939 B1 AU 466939B1
- Authority
- AU
- Australia
- Prior art keywords
- inground
- compacting
- percussion device
- making holes
- reversible
- 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
Links
- 238000009527 percussion Methods 0.000 title 1
- 230000002441 reversible effect Effects 0.000 title 1
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
- E21B4/145—Fluid operated hammers of the self propelled-type, e.g. with a reverse mode to retract the device from the hole
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)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU28356/71A AU466939B1 (en) | 1971-04-30 | 1971-04-30 | Reversible percussion device for making holes inground by compacting the latter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU28356/71A AU466939B1 (en) | 1971-04-30 | 1971-04-30 | Reversible percussion device for making holes inground by compacting the latter |
Publications (1)
Publication Number | Publication Date |
---|---|
AU466939B1 true AU466939B1 (en) | 1972-11-02 |
Family
ID=3716538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU28356/71A Expired AU466939B1 (en) | 1971-04-30 | 1971-04-30 | Reversible percussion device for making holes inground by compacting the latter |
Country Status (1)
Country | Link |
---|---|
AU (1) | AU466939B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0181712A1 (en) * | 1984-10-19 | 1986-05-21 | Allied Steel & Tractor Products, Inc. | Reversible underground piercing device |
-
1971
- 1971-04-30 AU AU28356/71A patent/AU466939B1/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0181712A1 (en) * | 1984-10-19 | 1986-05-21 | Allied Steel & Tractor Products, Inc. | Reversible underground piercing device |
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