DE4035874C2 - - Google Patents
Info
- Publication number
- DE4035874C2 DE4035874C2 DE19904035874 DE4035874A DE4035874C2 DE 4035874 C2 DE4035874 C2 DE 4035874C2 DE 19904035874 DE19904035874 DE 19904035874 DE 4035874 A DE4035874 A DE 4035874A DE 4035874 C2 DE4035874 C2 DE 4035874C2
- Authority
- DE
- Germany
- Prior art keywords
- valve
- stamp
- spring
- head
- stamp according
- 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
- 239000004809 Teflon Substances 0.000 claims description 7
- 229920006362 Teflon® Polymers 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000005065 mining Methods 0.000 claims description 3
- 230000005641 tunneling Effects 0.000 claims description 2
- 238000007789 sealing Methods 0.000 description 27
- 239000012530 fluid Substances 0.000 description 9
- 230000006378 damage Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012549 training Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007762 w/o emulsion Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000002783 friction material Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 244000062645 predators Species 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004575 stone Substances 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 (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904035874 DE4035874A1 (de) | 1990-06-29 | 1990-11-12 | Ausbaustempel mit in dem stempelkopf integriertem druckbegrenzungsventil |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4020774 | 1990-06-29 | ||
DE19904035874 DE4035874A1 (de) | 1990-06-29 | 1990-11-12 | Ausbaustempel mit in dem stempelkopf integriertem druckbegrenzungsventil |
Publications (2)
Publication Number | Publication Date |
---|---|
DE4035874A1 DE4035874A1 (de) | 1992-01-02 |
DE4035874C2 true DE4035874C2 (enrdf_load_stackoverflow) | 1993-07-22 |
Family
ID=25894595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19904035874 Granted DE4035874A1 (de) | 1990-06-29 | 1990-11-12 | Ausbaustempel mit in dem stempelkopf integriertem druckbegrenzungsventil |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4035874A1 (enrdf_load_stackoverflow) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4323462C2 (de) * | 1993-07-14 | 1995-05-04 | Vos Richard Grubenausbau Gmbh | Ausbaustempel für den Untertageeinsatz mit integriertem Druckbegrenzungsventil |
DE4401480C2 (de) * | 1993-07-14 | 1996-03-21 | Vos Richard Grubenausbau Gmbh | Ausbaustempel mit integrierter Ventilhülse für ein Druckbegrenzungsventil |
CN100439653C (zh) * | 2006-04-30 | 2008-12-03 | 王洁 | 赋能活塞杆密封手把 |
CN103174442B (zh) * | 2013-03-30 | 2016-12-14 | 淮北安来机电装备有限公司 | 矿用单体液压支柱的可换式三用阀筒座 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2149451C2 (de) * | 1971-10-04 | 1974-09-19 | Hemscheidt Maschf Hermann | Gebirgsschlagventilanordnung fuer einen hydraulischen Grubenstempel |
DE8423530U1 (de) * | 1984-08-08 | 1984-11-08 | GAT Grubenausbau GmbH, 5840 Schwerte | Ausbaustempel mit einsetzbarem druckbegrenzungsventil |
-
1990
- 1990-11-12 DE DE19904035874 patent/DE4035874A1/de active Granted
Also Published As
Publication number | Publication date |
---|---|
DE4035874A1 (de) | 1992-01-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |