CS28291A2 - Valve for post against shock bumps - Google Patents
Valve for post against shock bumpsInfo
- Publication number
- CS28291A2 CS28291A2 CS91282A CS28291A CS28291A2 CS 28291 A2 CS28291 A2 CS 28291A2 CS 91282 A CS91282 A CS 91282A CS 28291 A CS28291 A CS 28291A CS 28291 A2 CS28291 A2 CS 28291A2
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- valve
- against shock
- post against
- shock bumps
- bumps
- Prior art date
Links
- 230000035939 shock Effects 0.000 title 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)
- Lift Valve (AREA)
- Check Valves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4003465A DE4003465A1 (de) | 1990-02-06 | 1990-02-06 | Gebirgsschlagventil |
Publications (1)
Publication Number | Publication Date |
---|---|
CS28291A2 true CS28291A2 (en) | 1991-09-15 |
Family
ID=6399521
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CS91282A CS28291A2 (en) | 1990-02-06 | 1991-02-06 | Valve for post against shock bumps |
Country Status (5)
Country | Link |
---|---|
CS (1) | CS28291A2 (cs) |
DE (1) | DE4003465A1 (cs) |
HU (1) | HUT56607A (cs) |
PL (1) | PL164702B1 (cs) |
ZA (1) | ZA91893B (cs) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103953370B (zh) * | 2012-07-04 | 2016-01-27 | 巨隆集团芜湖兴隆液压有限公司 | 一种供煤矿综采液压支架使用的氮气安全阀 |
CN105065735A (zh) * | 2015-07-16 | 2015-11-18 | 苏州华达仪器设备有限公司 | 一种智能化压力调节阀 |
CN112576565B (zh) * | 2020-11-27 | 2023-08-22 | 北京天玛智控科技股份有限公司 | 充气式安全阀 |
-
1990
- 1990-02-06 DE DE4003465A patent/DE4003465A1/de not_active Withdrawn
-
1991
- 1991-02-04 PL PL91288947A patent/PL164702B1/pl unknown
- 1991-02-04 HU HU91376A patent/HUT56607A/hu unknown
- 1991-02-06 ZA ZA91893A patent/ZA91893B/xx unknown
- 1991-02-06 CS CS91282A patent/CS28291A2/cs unknown
Also Published As
Publication number | Publication date |
---|---|
PL288947A1 (en) | 1991-12-02 |
HUT56607A (en) | 1991-09-30 |
ZA91893B (en) | 1991-10-30 |
PL164702B1 (pl) | 1994-10-31 |
DE4003465A1 (de) | 1991-08-08 |
HU910376D0 (en) | 1991-08-28 |
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