FR2043221A5 - - Google Patents
Info
- Publication number
- FR2043221A5 FR2043221A5 FR7013168A FR7013168A FR2043221A5 FR 2043221 A5 FR2043221 A5 FR 2043221A5 FR 7013168 A FR7013168 A FR 7013168A FR 7013168 A FR7013168 A FR 7013168A FR 2043221 A5 FR2043221 A5 FR 2043221A5
- Authority
- FR
- France
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
- E21D23/26—Hydraulic or pneumatic control
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Fluid-Pressure Circuits (AREA)
- Taps Or Cocks (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691920858 DE1920858A1 (de) | 1969-04-24 | 1969-04-24 | Ausgleichs-Steuerventilvorrichtung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2043221A5 true FR2043221A5 (fr) | 1971-02-12 |
Family
ID=5732193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7013168A Expired FR2043221A5 (fr) | 1969-04-24 | 1970-04-13 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1920858A1 (fr) |
| FR (1) | FR2043221A5 (fr) |
| GB (1) | GB1303752A (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2341037A1 (fr) * | 1976-02-13 | 1977-09-09 | Hemscheidt Maschf Hermann | Soupape de commande pour soutenement de taille avancant hydrauliquement |
| DE4321647A1 (de) * | 1993-06-30 | 1995-01-12 | Suspa Compart Ag | Umschalt-Ventil |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2138110A (en) * | 1983-04-13 | 1984-10-17 | Drallim Ind | Improvement in and relating to control valves |
| US5443722A (en) * | 1994-06-01 | 1995-08-22 | Mueller Steam Specialty | Duplex strainer |
| DK177911B1 (en) * | 2013-03-05 | 2014-12-15 | Danfoss As | Heat exchanger valve arrangement |
-
1969
- 1969-04-24 DE DE19691920858 patent/DE1920858A1/de active Pending
-
1970
- 1970-04-13 FR FR7013168A patent/FR2043221A5/fr not_active Expired
- 1970-04-24 GB GB1981070A patent/GB1303752A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2341037A1 (fr) * | 1976-02-13 | 1977-09-09 | Hemscheidt Maschf Hermann | Soupape de commande pour soutenement de taille avancant hydrauliquement |
| DE4321647A1 (de) * | 1993-06-30 | 1995-01-12 | Suspa Compart Ag | Umschalt-Ventil |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1920858A1 (de) | 1970-11-19 |
| GB1303752A (fr) | 1973-01-17 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |