NL6600072A - - Google Patents
Info
- Publication number
- NL6600072A NL6600072A NL6600072A NL6600072A NL6600072A NL 6600072 A NL6600072 A NL 6600072A NL 6600072 A NL6600072 A NL 6600072A NL 6600072 A NL6600072 A NL 6600072A NL 6600072 A NL6600072 A NL 6600072A
- Authority
- NL
- Netherlands
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
- E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
-
- 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
- E21D23/18—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86919—Sequentially closing and opening alternately seating flow controllers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/87169—Supply and exhaust
- Y10T137/87217—Motor
- Y10T137/87225—Fluid motor
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)
- Safety Valves (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6600072A NL6600072A (en) | 1966-01-04 | 1966-01-04 | |
| DE19671533767 DE1533767A1 (en) | 1966-01-04 | 1967-01-02 | Device for pressing an extraction system for raw materials |
| US607059A US3437011A (en) | 1966-01-04 | 1967-01-03 | Installation for controlling a pushing cylinder at a working face with power advanced supports |
| GB362/67A GB1158646A (en) | 1966-01-04 | 1967-01-03 | Hydraulic Ram and Roof Supporting Mechanisms for use in Mechanical Mining |
| FR1585864D FR1585864A (en) | 1966-01-04 | 1967-01-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL6600072A NL6600072A (en) | 1966-01-04 | 1966-01-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6600072A true NL6600072A (en) | 1967-07-05 |
Family
ID=19795381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6600072A NL6600072A (en) | 1966-01-04 | 1966-01-04 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3437011A (en) |
| DE (1) | DE1533767A1 (en) |
| FR (1) | FR1585864A (en) |
| GB (1) | GB1158646A (en) |
| NL (1) | NL6600072A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1187208A (en) * | 1966-05-25 | 1970-04-08 | Dobson Ltd W E & F | Improvements in or relating to a Pilot-operable Hydraulic Valve |
| DE1916334A1 (en) * | 1969-03-29 | 1970-10-08 | Teves Gmbh Alfred | Control valve in the form of a seat valve |
| US4026193A (en) * | 1974-09-19 | 1977-05-31 | Raymond International Inc. | Hydraulically driven hammer system |
| FR2519397B1 (en) * | 1981-12-31 | 1986-09-19 | Herckelbout Jacques | INTERMITTENT DRIVE OF A SHAFT |
| AT391348B (en) * | 1988-12-29 | 1990-09-25 | Boehler Pneumatik Int Gmbh | CONTROL VALVE FOR A COUNTERBACK STITCH HOLE DRILL |
| US20090283160A1 (en) * | 2008-05-02 | 2009-11-19 | James Fishwick | Fluid flow control device and control circuit |
| US8205632B2 (en) * | 2008-05-02 | 2012-06-26 | Bifold Fluidpower Limited | Fluid flow control device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1032021A (en) * | 1964-01-14 | 1966-06-08 | Dowty Mining Equipment Ltd | Advanceable roof support assembly |
| GB1022469A (en) * | 1964-02-11 | 1966-03-16 | Dowty Mining Equipment Ltd | Roof support assembly suitable for use in mines |
-
1966
- 1966-01-04 NL NL6600072A patent/NL6600072A/xx unknown
-
1967
- 1967-01-02 DE DE19671533767 patent/DE1533767A1/en active Pending
- 1967-01-03 GB GB362/67A patent/GB1158646A/en not_active Expired
- 1967-01-03 US US607059A patent/US3437011A/en not_active Expired - Lifetime
- 1967-01-04 FR FR1585864D patent/FR1585864A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1585864A (en) | 1970-02-06 |
| DE1533767A1 (en) | 1970-07-23 |
| GB1158646A (en) | 1969-07-16 |
| US3437011A (en) | 1969-04-08 |