DE9011887U1 - Teleskopförmig längenverstellbarer hydraulischer Grubenstempel - Google Patents
Teleskopförmig längenverstellbarer hydraulischer GrubenstempelInfo
- Publication number
- DE9011887U1 DE9011887U1 DE9011887U DE9011887U DE9011887U1 DE 9011887 U1 DE9011887 U1 DE 9011887U1 DE 9011887 U DE9011887 U DE 9011887U DE 9011887 U DE9011887 U DE 9011887U DE 9011887 U1 DE9011887 U1 DE 9011887U1
- Authority
- DE
- Germany
- Prior art keywords
- valve
- piston
- pressure
- spring
- ing
- 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 - Lifetime
Links
- 239000012530 fluid Substances 0.000 claims description 17
- 244000309464 bull Species 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims 1
- 210000003128 head Anatomy 0.000 description 11
- 238000005553 drilling Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 101150112468 OR51E2 gene Proteins 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004033 diameter control Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 210000001061 forehead Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- E21D15/50—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
- E21D15/512—Arrangement of 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)
- Safety Valves (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9011887U DE9011887U1 (de) | 1990-08-16 | 1990-08-16 | Teleskopförmig längenverstellbarer hydraulischer Grubenstempel |
| EP91104019A EP0471145A1 (de) | 1990-08-16 | 1991-03-15 | Teleskopförmig längenverstellbarer hydraulischer Grubenstempel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE9011887U DE9011887U1 (de) | 1990-08-16 | 1990-08-16 | Teleskopförmig längenverstellbarer hydraulischer Grubenstempel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE9011887U1 true DE9011887U1 (de) | 1990-12-20 |
Family
ID=6856577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE9011887U Expired - Lifetime DE9011887U1 (de) | 1990-08-16 | 1990-08-16 | Teleskopförmig längenverstellbarer hydraulischer Grubenstempel |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0471145A1 (xx) |
| DE (1) | DE9011887U1 (xx) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0629802A1 (de) * | 1993-06-17 | 1994-12-21 | Richard Voss Grubenausbau Gmbh | Druckausgeglichenes Druckbegrenzungsventil |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4221941A1 (de) * | 1992-07-03 | 1994-01-05 | Ruhrkohle Ag | Hydraulischer Grubenstempel |
| GB2359609A (en) * | 2000-01-06 | 2001-08-29 | Renold Plc | A pressure relief valve |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE571005A (xx) * | 1957-09-06 | |||
| DE3314837A1 (de) * | 1982-06-03 | 1983-12-08 | Jörn 4320 Hattingen Dams | Druckbegrenzungsventil |
| DE8437091U1 (de) * | 1984-12-19 | 1985-08-08 | GAT Grubenausbau GmbH, 5840 Schwerte | Druckbegrenzungsventil mit geringen Schließwerten |
| US5180443A (en) * | 1989-05-19 | 1993-01-19 | Richard Voss Grubenausbau Gmbh | Pressure-relief valve with stepped or double piston |
-
1990
- 1990-08-16 DE DE9011887U patent/DE9011887U1/de not_active Expired - Lifetime
-
1991
- 1991-03-15 EP EP91104019A patent/EP0471145A1/de not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0629802A1 (de) * | 1993-06-17 | 1994-12-21 | Richard Voss Grubenausbau Gmbh | Druckausgeglichenes Druckbegrenzungsventil |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0471145A1 (de) | 1992-02-19 |
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