FR2231910B1 - - Google Patents
Info
- Publication number
- FR2231910B1 FR2231910B1 FR7320234A FR7320234A FR2231910B1 FR 2231910 B1 FR2231910 B1 FR 2231910B1 FR 7320234 A FR7320234 A FR 7320234A FR 7320234 A FR7320234 A FR 7320234A FR 2231910 B1 FR2231910 B1 FR 2231910B1
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/01—Locking-valves or other detent i.e. load-holding devices
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/01—Locking-valves or other detent i.e. load-holding devices
- F15B13/015—Locking-valves or other detent i.e. load-holding devices using an enclosed pilot flow valve
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Multiple-Way Valves (AREA)
- Fluid-Pressure Circuits (AREA)
- Fluid-Driven Valves (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7320234A FR2231910A1 (en) | 1973-06-04 | 1973-06-04 | Control valve for hydraulic jack of crane jib - has piston operated by low pressure oil to control main oil flow |
IT2544673A IT989217B (en) | 1973-06-04 | 1973-06-15 | SEPARATE PILOTAGE VALVE DEVICE PARTICULARLY FOR THE CONTROL OF LIFTING EQUIPMENT AND SIMILAR |
ES415981A ES415981A1 (en) | 1973-06-04 | 1973-06-16 | Improvements introduced in a separate control valve device for arms of load handling machines. (Machine-translation by Google Translate, not legally binding) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7320234A FR2231910A1 (en) | 1973-06-04 | 1973-06-04 | Control valve for hydraulic jack of crane jib - has piston operated by low pressure oil to control main oil flow |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2231910A1 FR2231910A1 (en) | 1974-12-27 |
FR2231910B1 true FR2231910B1 (en) | 1976-06-11 |
Family
ID=9120466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7320234A Granted FR2231910A1 (en) | 1973-06-04 | 1973-06-04 | Control valve for hydraulic jack of crane jib - has piston operated by low pressure oil to control main oil flow |
Country Status (3)
Country | Link |
---|---|
ES (1) | ES415981A1 (en) |
FR (1) | FR2231910A1 (en) |
IT (1) | IT989217B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2642337C3 (en) * | 1976-09-21 | 1984-01-19 | Danfoss A/S, 6430 Nordborg | Control device for a double-acting hydraulic motor |
DE2735559C2 (en) * | 1977-08-06 | 1986-10-30 | Robert Bosch Gmbh, 7000 Stuttgart | Electro-hydraulic control unit for a hydraulically driven work device |
DE2735558A1 (en) * | 1977-08-06 | 1979-02-15 | Bosch Gmbh Robert | CONTROL UNIT FOR HYDRAULIC WORK EQUIPMENT |
IT1118648B (en) * | 1979-05-18 | 1986-03-03 | Chs Cinotto Giuseppe Hydraulic | SAFETY DEVICE FOR HYDRAULIC CIRCUITS, ESPECIALLY OF LIFT AND SIMILAR EXCAVATORS |
FR2473584A1 (en) * | 1980-01-14 | 1981-07-17 | Missioux Jean Leon | Safety interlock for crane operated mechanical grabs - has jacks with associated valve caps for protection and operated by electromagnetic valve with switch near operator |
FR2485104B1 (en) * | 1980-03-31 | 1986-05-23 | Meca Ind Ind Agricoles Atel | IMPROVEMENTS TO HYDRAULIC SAFETY DEVICES FOR HYDRAULIC MOTORS |
US5381822A (en) * | 1993-11-26 | 1995-01-17 | Dana Corporation | Relief valve with hydraulic fuse |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1240350A (en) * | 1958-11-14 | 1960-09-02 | Thomson Houston Comp Francaise | Improvements to turbine valves |
FR1327214A (en) * | 1962-04-05 | 1963-05-17 | Applic Mach Motrices | Automatic safety controls by double pressure pump |
DE1550454A1 (en) * | 1966-08-11 | 1969-10-09 | Parker Hannifin Corp | Flow control valve, especially for a pressure medium motor |
DE1943693C3 (en) * | 1969-08-28 | 1981-07-16 | Robert Bosch Gmbh, 7000 Stuttgart | Spring loaded check valve |
-
1973
- 1973-06-04 FR FR7320234A patent/FR2231910A1/en active Granted
- 1973-06-15 IT IT2544673A patent/IT989217B/en active
- 1973-06-16 ES ES415981A patent/ES415981A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES415981A1 (en) | 1976-05-16 |
FR2231910A1 (en) | 1974-12-27 |
IT989217B (en) | 1975-05-20 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |