EP2698500A3 - Prop - Google Patents
Prop Download PDFInfo
- Publication number
- EP2698500A3 EP2698500A3 EP13174793.3A EP13174793A EP2698500A3 EP 2698500 A3 EP2698500 A3 EP 2698500A3 EP 13174793 A EP13174793 A EP 13174793A EP 2698500 A3 EP2698500 A3 EP 2698500A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- prop
- water
- members
- yielding
- controls
- 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- Withdrawn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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
- E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Fluid-Damping Devices (AREA)
- Sealing Devices (AREA)
- Multiple-Way Valves (AREA)
Abstract
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA201206199 | 2012-08-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2698500A2 EP2698500A2 (en) | 2014-02-19 |
EP2698500A3 true EP2698500A3 (en) | 2017-06-21 |
Family
ID=48782895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13174793.3A Withdrawn EP2698500A3 (en) | 2012-08-17 | 2013-07-02 | Prop |
Country Status (3)
Country | Link |
---|---|
US (1) | US20140050538A1 (en) |
EP (1) | EP2698500A3 (en) |
AU (1) | AU2013206571A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103912294B (en) * | 2014-03-19 | 2016-05-18 | 北京天地玛珂电液控制***有限公司 | A kind of working surface hydraulic support group linearity control method that uses optical fiber |
CN107905825A (en) * | 2017-10-31 | 2018-04-13 | 山东里能鲁西矿业有限公司 | It is a kind of new for no coal pillar mining and erosion control yield timbering |
CN109057837A (en) * | 2018-09-18 | 2018-12-21 | 安徽宝龙电器有限公司 | A kind of self-adaptive hydraulic struts based on automatic monitoring system |
CN113006837A (en) * | 2021-02-03 | 2021-06-22 | 陕西陕煤韩城矿业有限公司 | Modular single hydraulic prop |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2474464A (en) * | 1947-04-24 | 1949-06-28 | Cable Richard George | Pit prop and the like |
US3281107A (en) * | 1965-12-15 | 1966-10-25 | Ohio Brass Co | Hydraulic support prop |
US5720581A (en) * | 1993-05-07 | 1998-02-24 | Dorbyl Limited | Support prop |
US5921718A (en) * | 1995-04-20 | 1999-07-13 | Kolk; Theodor | Prop for use in underground mining or tunnel construction |
ZA996333B (en) * | 1998-09-25 | 2000-04-10 | Mine Support Products Propriet | Support. |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1765200A (en) * | 1927-11-17 | 1930-06-17 | Bullough Enoch | Pit prop |
SU1735592A1 (en) * | 1986-11-27 | 1992-05-23 | Институт Горного Дела Со Ан Ссср | Hydraulic prop |
ZA956530B (en) | 1994-05-05 | 1996-05-23 | Advanced Mining Software Ltd | Prop |
-
2013
- 2013-06-27 AU AU2013206571A patent/AU2013206571A1/en not_active Abandoned
- 2013-07-02 EP EP13174793.3A patent/EP2698500A3/en not_active Withdrawn
- 2013-08-16 US US13/968,548 patent/US20140050538A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2474464A (en) * | 1947-04-24 | 1949-06-28 | Cable Richard George | Pit prop and the like |
US3281107A (en) * | 1965-12-15 | 1966-10-25 | Ohio Brass Co | Hydraulic support prop |
US5720581A (en) * | 1993-05-07 | 1998-02-24 | Dorbyl Limited | Support prop |
US5921718A (en) * | 1995-04-20 | 1999-07-13 | Kolk; Theodor | Prop for use in underground mining or tunnel construction |
ZA996333B (en) * | 1998-09-25 | 2000-04-10 | Mine Support Products Propriet | Support. |
Also Published As
Publication number | Publication date |
---|---|
US20140050538A1 (en) | 2014-02-20 |
AU2013206571A1 (en) | 2014-03-06 |
EP2698500A2 (en) | 2014-02-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
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 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: NISSEN, CHRISTIAN |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: E21D 15/28 20060101AFI20170516BHEP Ipc: E21D 15/51 20060101ALI20170516BHEP Ipc: E21D 15/44 20060101ALI20170516BHEP |
|
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: 20171222 |