JPS5054778A - - Google Patents

Info

Publication number
JPS5054778A
JPS5054778A JP49027289A JP2728974A JPS5054778A JP S5054778 A JPS5054778 A JP S5054778A JP 49027289 A JP49027289 A JP 49027289A JP 2728974 A JP2728974 A JP 2728974A JP S5054778 A JPS5054778 A JP S5054778A
Authority
JP
Japan
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
Application number
JP49027289A
Other languages
Japanese (ja)
Other versions
JPS5535563B2 (en
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 filed Critical
Publication of JPS5054778A publication Critical patent/JPS5054778A/ja
Publication of JPS5535563B2 publication Critical patent/JPS5535563B2/ja
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
JP2728974A 1973-09-10 1974-03-11 Expired JPS5535563B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US395647A US3908515A (en) 1973-09-10 1973-09-10 Hydraulic circuit with selectively actuatable float control

Publications (2)

Publication Number Publication Date
JPS5054778A true JPS5054778A (en) 1975-05-14
JPS5535563B2 JPS5535563B2 (en) 1980-09-16

Family

ID=23563901

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2728974A Expired JPS5535563B2 (en) 1973-09-10 1974-03-11

Country Status (6)

Country Link
US (1) US3908515A (en)
JP (1) JPS5535563B2 (en)
BE (1) BE819721A (en)
BR (1) BR7406750D0 (en)
CA (1) CA1025326A (en)
ZA (1) ZA744408B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008138870A (en) * 2006-11-29 2008-06-19 Volvo Construction Equipment Ab Double check valve with floating function

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4018350A (en) * 1975-03-17 1977-04-19 Pettibone Corporation Hydraulic cyliner systems with safeguarded float action
US4128047A (en) * 1975-08-14 1978-12-05 Textron Inc. Actuator with locking valves
FR2360801A1 (en) * 1976-04-30 1978-03-03 Ppm Sa DEVICE FOR CONTROLLING THE COMMUNICATION OF TWO SPEAKERS AND VEHICLE SUSPENSION BY APPLYING
US4039085A (en) * 1976-06-10 1977-08-02 Koehring Company Crane with a pivoted boom and a float valve therefor
US4167892A (en) * 1977-04-07 1979-09-18 Caterpillar Tractor Co. Load check with mechanical venting means
US4130049A (en) * 1977-04-07 1978-12-19 Caterpillar Tractor Co. Vent control for cylinder mounted load check valves
US4165675A (en) * 1977-04-07 1979-08-28 Caterpillar Tractor Co. Load check valve cylinder mounted
US4170246A (en) * 1977-05-23 1979-10-09 Sta-Rite Industries, Inc. Pilot operator valve
JPS56501057A (en) * 1979-08-30 1981-07-30
FI60429C (en) * 1980-06-05 1982-01-11 Tampella Oy Ab HYDRAULIC KOLVCYLINDERANORDNING MED SITT VENTILORGAN
US4417502A (en) * 1980-11-17 1983-11-29 Dresser Industries, Inc. Load supporting hydraulic circuit with emergency automatic load restraint
US4367673A (en) * 1981-01-09 1983-01-11 Dresser Industries, Inc. System and method for controlling the elevation of a boom hoist device
DE3225536A1 (en) * 1982-07-08 1984-01-12 Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover PNEUMATIC DOOR ACTUATOR
WO1993013319A1 (en) * 1982-10-25 1993-07-08 Blake William W Fluid control for two independent actuators
US4761953A (en) * 1984-04-18 1988-08-09 Dynamic Hydraulic Systems, Inc. Hydraulic elevator mechanism
DE3611212C1 (en) * 1986-04-04 1987-06-11 Ernst Dipl-Ing Korthaus Control for hydraulic cylinders as drives for piston pumps
DE3613747A1 (en) * 1986-04-23 1987-10-29 Concordia Fluidtechnik Gmbh 5/3 VALVE
US4761954A (en) * 1987-03-16 1988-08-09 Dynamic Hydraulic Systems, Inc. Fork-lift system
DE3739525A1 (en) * 1987-11-21 1989-06-01 Orenstein & Koppel Ag PLANING VEHICLE
AT388483B (en) * 1988-03-30 1989-06-26 Steyr Daimler Puch Ag LIFTING ROD TO CONNECT THE LIFTING ARMS TO THE LOWER ARMS IN A HYDRAULIC TRACTOR LIFT
JPH0454352Y2 (en) * 1989-08-29 1992-12-21
DE9005983U1 (en) * 1990-05-26 1991-09-19 Robert Bosch Gmbh, 7000 Stuttgart Control device for a working cylinder
AT402334B (en) * 1991-03-20 1997-04-25 Hoerbiger Gmbh HYDRAULIC CYLINDER / PISTON ARRANGEMENT
FR2684066B1 (en) * 1991-11-26 1994-01-07 Messier Bugatti ACTUATOR ACTUATION SYSTEM FOR AN AIRCRAFT LANDING GEAR.
DE59305912D1 (en) * 1993-02-02 1997-04-24 Putzmeister Maschf METHOD FOR CONVEYING PRE-CRUSHED METAL SCRAP OR THE SAME SOLID CONTAINING SOLIDS
NL9500181A (en) * 1995-02-01 1996-09-02 Applied Power Inc Control and operating system, in particular for a hydraulic drive element of a folding roof installation of a vehicle.
JP3778634B2 (en) * 1996-11-22 2006-05-24 Ｓｍｃ株式会社 Speed controller with pilot check valve
US6293181B1 (en) 1998-04-16 2001-09-25 Caterpillar Inc. Control system providing a float condition for a hydraulic cylinder
DE19919014C2 (en) * 1999-04-27 2001-03-01 Danfoss Fluid Power As Nordbor Hydraulic valve with a locking and a floating function
US6691604B1 (en) * 1999-09-28 2004-02-17 Caterpillar Inc Hydraulic system with an actuator having independent meter-in meter-out control
US6477937B1 (en) * 1999-12-13 2002-11-12 Aladdin Engineering & Manufacturing Valve arrangement including release valve
DE20118067U1 (en) * 2001-11-08 2002-01-17 Knopff Dieter Check valve arrangement and control valve with such a check valve arrangement
DE102007032415B3 (en) * 2007-07-12 2009-04-02 Sauer-Danfoss Aps Hydraulic valve arrangement
KR100915206B1 (en) * 2007-09-20 2009-09-02 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 double check valve with floating function
FR2933471B1 (en) * 2008-07-03 2013-02-15 Vianney Rabhi BALANCED ELECTRO-HYDRAULIC VALVE FOR A VARIABLE COMPRESSION RATE MOTOR HYDRAULIC CONTROL UNIT
US8333218B2 (en) * 2010-01-27 2012-12-18 Mac Valves, Inc. Proportional pressure controller
KR101737902B1 (en) * 2010-05-18 2017-05-22 볼보 컨스트럭션 이큅먼트 에이비 Double check valve for construction equipment
US20120152629A1 (en) * 2010-12-15 2012-06-21 Mather Daniel T Hydraulic system having load lock valve
US9429174B1 (en) * 2013-03-15 2016-08-30 Clark Equipment Company Enabling valve having separate float and lift down positions
IT201900005056A1 (en) * 2019-04-04 2020-10-04 Nem S R L HYDRAULIC DRIVE CIRCUIT FOR OPERATING MACHINE WITH MECHANICAL ARTICULATION EQUIPPED WITH FLOATING FUNCTION.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4423873Y1 (en) * 1965-05-12 1969-10-08

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2517164A (en) * 1947-02-19 1950-08-01 Bruno F Arps Two-speed hydraulic ram
US3381587A (en) * 1965-09-10 1968-05-07 Deere & Co Hydraulic control system
US3274902A (en) * 1965-10-22 1966-09-27 Deere & Co Hydraulic control system
CH492885A (en) * 1968-08-17 1970-06-30 Herion Werke Kg Safety control, in particular a press drive
US3558102A (en) * 1969-01-10 1971-01-26 William M Cruse Theater stage set control system
US3543647A (en) * 1969-05-02 1970-12-01 Deere & Co Control valve means for a two-way hydraulic cylinder
US3608431A (en) * 1969-07-14 1971-09-28 Lummus Industries Control system for the ram of vertically disposed fluid pressure cylinders
DE2048421C3 (en) * 1970-10-02 1979-08-09 Danfoss A/S, Nordborg (Daenemark) Valve arrangement for hydraulic steering devices

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4423873Y1 (en) * 1965-05-12 1969-10-08

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008138870A (en) * 2006-11-29 2008-06-19 Volvo Construction Equipment Ab Double check valve with floating function

Also Published As

Publication number Publication date
JPS5535563B2 (en) 1980-09-16
AU7175074A (en) 1976-01-29
CA1025326A (en) 1978-01-31
ZA744408B (en) 1975-08-27
BR7406750D0 (en) 1975-09-09
BE819721A (en) 1975-03-10
US3908515A (en) 1975-09-30

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