EP0352327A4 - Pneumatically-operated percussion device - Google Patents
Pneumatically-operated percussion deviceInfo
- Publication number
- EP0352327A4 EP0352327A4 EP19880908419 EP88908419A EP0352327A4 EP 0352327 A4 EP0352327 A4 EP 0352327A4 EP 19880908419 EP19880908419 EP 19880908419 EP 88908419 A EP88908419 A EP 88908419A EP 0352327 A4 EP0352327 A4 EP 0352327A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- air
- shock
- chamber
- communicated
- camera
- 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.)
- Withdrawn
Links
- 238000009527 percussion Methods 0.000 title 1
- 230000035939 shock Effects 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 5
- 239000006096 absorbing agent Substances 0.000 claims 1
- 230000033001 locomotion Effects 0.000 description 14
- 230000007423 decrease Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 206010049119 Emotional distress Diseases 0.000 description 1
- UOACKFBJUYNSLK-XRKIENNPSA-N Estradiol Cypionate Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H](C4=CC=C(O)C=C4CC3)CC[C@@]21C)C(=O)CCC1CCCC1 UOACKFBJUYNSLK-XRKIENNPSA-N 0.000 description 1
- 241001122767 Theaceae Species 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000009429 distress Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000036651 mood Effects 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 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
Definitions
- the outlet section is open and fully open
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Percussive Tools And Related Accessories (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Reciprocating Pumps (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU4300605/03A SU1678100A1 (ru) | 1987-09-02 | 1987-09-02 | Пневматическое устройство ударного действия |
SU4300605 | 1987-09-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0352327A1 EP0352327A1 (de) | 1990-01-31 |
EP0352327A4 true EP0352327A4 (en) | 1991-07-31 |
Family
ID=21325658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19880908419 Withdrawn EP0352327A4 (en) | 1987-09-02 | 1988-08-30 | Pneumatically-operated percussion device |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0352327A4 (de) |
AU (1) | AU603015B2 (de) |
CA (1) | CA1308314C (de) |
ES (1) | ES2010343A6 (de) |
FI (1) | FI893122A0 (de) |
HU (1) | HU885510D0 (de) |
SU (1) | SU1678100A1 (de) |
WO (1) | WO1989002011A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6129761A (en) | 1995-06-07 | 2000-10-10 | Reprogenesis, Inc. | Injectable hydrogel compositions |
CN102012339B (zh) * | 2010-12-15 | 2012-06-27 | 山东大学 | 适用于地质力学模型试验的超薄柔性均布压力加载装置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3974885A (en) * | 1972-07-10 | 1976-08-17 | Boris Vasilievich Sudnishnikov | Pneumatic percussive power tool |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2634066C3 (de) * | 1976-07-29 | 1984-09-20 | Paul 5940 Lennestadt Schmidt | Vorrichtung für den Vor- und Rücklauf von selbstangetriebenen, pneumatischen Rammbohrgeräten |
-
1987
- 1987-09-02 SU SU4300605/03A patent/SU1678100A1/ru active
-
1988
- 1988-08-18 CA CA000575043A patent/CA1308314C/en not_active Expired - Lifetime
- 1988-08-30 HU HU885510A patent/HU885510D0/hu unknown
- 1988-08-30 WO PCT/SU1988/000175 patent/WO1989002011A1/ru not_active Application Discontinuation
- 1988-08-30 AU AU24246/88A patent/AU603015B2/en not_active Ceased
- 1988-08-30 EP EP19880908419 patent/EP0352327A4/de not_active Withdrawn
- 1988-09-01 ES ES8802697A patent/ES2010343A6/es not_active Expired
-
1989
- 1989-06-27 FI FI893122A patent/FI893122A0/fi not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3974885A (en) * | 1972-07-10 | 1976-08-17 | Boris Vasilievich Sudnishnikov | Pneumatic percussive power tool |
Non-Patent Citations (1)
Title |
---|
See also references of WO8902011A1 * |
Also Published As
Publication number | Publication date |
---|---|
HU885510D0 (de) | 1990-02-28 |
AU2424688A (en) | 1989-03-31 |
FI893122A (fi) | 1989-06-27 |
FI893122A0 (fi) | 1989-06-27 |
AU603015B2 (en) | 1990-11-01 |
WO1989002011A1 (en) | 1989-03-09 |
CA1308314C (en) | 1992-10-06 |
SU1678100A1 (ru) | 2000-02-20 |
ES2010343A6 (es) | 1989-11-01 |
EP0352327A1 (de) | 1990-01-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19890517 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE DE FR GB IT NL SE |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 19910607 |
|
AK | Designated contracting states |
Kind code of ref document: A4 Designated state(s): AT BE DE FR GB IT NL SE |
|
17Q | First examination report despatched |
Effective date: 19920824 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19930105 |