DE59100809D1 - Hydraulischer stahlgrubenstempel. - Google Patents
Hydraulischer stahlgrubenstempel.Info
- Publication number
- DE59100809D1 DE59100809D1 DE91907416T DE59100809T DE59100809D1 DE 59100809 D1 DE59100809 D1 DE 59100809D1 DE 91907416 T DE91907416 T DE 91907416T DE 59100809 T DE59100809 T DE 59100809T DE 59100809 D1 DE59100809 D1 DE 59100809D1
- Authority
- DE
- Germany
- Prior art keywords
- hydraulic steel
- steel pit
- pit stamp
- stamp
- hydraulic
- 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 - Fee Related
Links
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
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)
- Actuator (AREA)
- Safety Valves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9005343U DE9005343U1 (de) | 1990-05-11 | 1990-05-11 | Hydraulischer Stahlgrubenstempel |
Publications (1)
Publication Number | Publication Date |
---|---|
DE59100809D1 true DE59100809D1 (de) | 1994-02-17 |
Family
ID=6853695
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE9005343U Expired - Lifetime DE9005343U1 (de) | 1990-05-11 | 1990-05-11 | Hydraulischer Stahlgrubenstempel |
DE91907416T Expired - Fee Related DE59100809D1 (de) | 1990-05-11 | 1991-04-13 | Hydraulischer stahlgrubenstempel. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE9005343U Expired - Lifetime DE9005343U1 (de) | 1990-05-11 | 1990-05-11 | Hydraulischer Stahlgrubenstempel |
Country Status (6)
Country | Link |
---|---|
US (1) | US5205676A (de) |
EP (1) | EP0482141B1 (de) |
JP (1) | JPH0650040B2 (de) |
DE (2) | DE9005343U1 (de) |
WO (1) | WO1991018186A1 (de) |
ZA (1) | ZA912821B (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20060113453A1 (en) * | 2004-11-29 | 2006-06-01 | Actuant Corporation | Extendible leg having a rotatable screw |
CN100535394C (zh) * | 2005-10-31 | 2009-09-02 | 中国矿业大学 | 悬浮式液压支柱 |
IT1393381B1 (it) * | 2008-09-19 | 2012-04-20 | Melfer S R L | Metodo per la realizzazione e la posa in opera di una armatura per costruzioni, particolarmente per la costruzione di gallerie stradali o simili, ed armatura cosi' ottenibile |
NL2004931C2 (nl) * | 2010-06-21 | 2011-12-22 | Resqtec Zumro B V | Veiligheidsinrichting. |
US20120148350A1 (en) * | 2010-12-10 | 2012-06-14 | Kenneth Poulson | Mine prop jack and method of prestressing a mine prop |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1579913A (en) * | 1923-12-31 | 1926-04-06 | Harry E Bronson | Hydraulic jack |
BE486663A (de) * | 1948-01-12 | |||
US4255071A (en) * | 1979-08-27 | 1981-03-10 | Bochumer Eisenhutte Heintzmann Gmbh & Co. | Supporting of excavation roofs |
DE8808519U1 (de) * | 1988-07-04 | 1989-11-02 | Heiliger, Martha-Catharina, 5166 Kreuzau | Hydraulischer Stahlgrubenstempel |
US5026218A (en) * | 1989-11-16 | 1991-06-25 | Joy Technologies Inc. | Temporary roof support cylinder |
-
1990
- 1990-05-11 DE DE9005343U patent/DE9005343U1/de not_active Expired - Lifetime
-
1991
- 1991-04-13 WO PCT/EP1991/000706 patent/WO1991018186A1/de active IP Right Grant
- 1991-04-13 US US07/781,223 patent/US5205676A/en not_active Expired - Fee Related
- 1991-04-13 JP JP3506885A patent/JPH0650040B2/ja not_active Expired - Lifetime
- 1991-04-13 EP EP91907416A patent/EP0482141B1/de not_active Expired - Lifetime
- 1991-04-13 DE DE91907416T patent/DE59100809D1/de not_active Expired - Fee Related
- 1991-04-16 ZA ZA912821A patent/ZA912821B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
EP0482141B1 (de) | 1994-01-05 |
WO1991018186A1 (de) | 1991-11-28 |
EP0482141A1 (de) | 1992-04-29 |
ZA912821B (en) | 1992-01-29 |
DE9005343U1 (de) | 1990-08-30 |
JPH0650040B2 (ja) | 1994-06-29 |
JPH04503843A (ja) | 1992-07-09 |
US5205676A (en) | 1993-04-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |