FR2205624A1 - - Google Patents
Info
- Publication number
- FR2205624A1 FR2205624A1 FR7239370A FR7239370A FR2205624A1 FR 2205624 A1 FR2205624 A1 FR 2205624A1 FR 7239370 A FR7239370 A FR 7239370A FR 7239370 A FR7239370 A FR 7239370A FR 2205624 A1 FR2205624 A1 FR 2205624A1
- 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.)
- Granted
Links
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/025—Rock drills, i.e. jumbo drills
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/022—Control of the drilling operation; Hydraulic or pneumatic means for activation or operation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B17/00—Combinations of telemotor and servomotor systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
- F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
- F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
- F15B9/10—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor in which the controlling element and the servomotor each controls a separate member, these members influencing different fluid passages or the same passage
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7239370A FR2205624B1 (fr) | 1972-11-07 | 1972-11-07 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7239370A FR2205624B1 (fr) | 1972-11-07 | 1972-11-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2205624A1 true FR2205624A1 (fr) | 1974-05-31 |
FR2205624B1 FR2205624B1 (fr) | 1976-06-04 |
Family
ID=9106761
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7239370A Expired FR2205624B1 (fr) | 1972-11-07 | 1972-11-07 |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2205624B1 (fr) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1204046A (fr) * | 1957-10-12 | 1960-01-22 | Sulzer Ag | Dispositif régulateur à servo-moteur |
FR1340695A (fr) * | 1962-12-07 | 1963-10-18 | Sulzer Ag | Tiroir de distribution pour servo-moteur |
FR1475685A (fr) * | 1965-11-30 | 1967-04-07 | Dispositif de commande d'un moteur hydraulique |
-
1972
- 1972-11-07 FR FR7239370A patent/FR2205624B1/fr not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1204046A (fr) * | 1957-10-12 | 1960-01-22 | Sulzer Ag | Dispositif régulateur à servo-moteur |
FR1340695A (fr) * | 1962-12-07 | 1963-10-18 | Sulzer Ag | Tiroir de distribution pour servo-moteur |
FR1475685A (fr) * | 1965-11-30 | 1967-04-07 | Dispositif de commande d'un moteur hydraulique |
Also Published As
Publication number | Publication date |
---|---|
FR2205624B1 (fr) | 1976-06-04 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |