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
Application number
FR7320234A
Other languages
French (fr)
Other versions
FR2231910A1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GRIFFET ETS M
Original Assignee
GRIFFET ETS M
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GRIFFET ETS M filed Critical GRIFFET ETS M
Priority to FR7320234A priority Critical patent/FR2231910A1/en
Priority to IT2544673A priority patent/IT989217B/en
Priority to ES415981A priority patent/ES415981A1/en
Publication of FR2231910A1 publication Critical patent/FR2231910A1/en
Application granted granted Critical
Publication of FR2231910B1 publication Critical patent/FR2231910B1/fr
Granted legal-status Critical Current

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)
FR7320234A 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 Granted FR2231910A1 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
ES415981A1 (en) 1976-05-16
FR2231910A1 (en) 1974-12-27
IT989217B (en) 1975-05-20

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Legal Events

Date Code Title Description
ST Notification of lapse