CA1025326A - Hydraulic circuit with selectively actuatable float control - Google Patents

Hydraulic circuit with selectively actuatable float control

Info

Publication number
CA1025326A
CA1025326A CA204,191A CA204191A CA1025326A CA 1025326 A CA1025326 A CA 1025326A CA 204191 A CA204191 A CA 204191A CA 1025326 A CA1025326 A CA 1025326A
Authority
CA
Canada
Prior art keywords
hydraulic circuit
selectively actuatable
float control
float
control
Prior art date
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
CA204,191A
Other languages
English (en)
French (fr)
Other versions
CA204191S (en
Inventor
Howard L. Johnson
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor Co
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 Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Application granted granted Critical
Publication of CA1025326A publication Critical patent/CA1025326A/en
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)
CA204,191A 1973-09-10 1974-07-05 Hydraulic circuit with selectively actuatable float control Expired CA1025326A (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 (1)

Publication Number Publication Date
CA1025326A true CA1025326A (en) 1978-01-31

Family

ID=23563901

Family Applications (1)

Application Number Title Priority Date Filing Date
CA204,191A Expired CA1025326A (en) 1973-09-10 1974-07-05 Hydraulic circuit with selectively actuatable float control

Country Status (6)

Country Link
US (1) US3908515A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5535563B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE819721A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BR (1) BR7406750D0 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1025326A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ZA (1) ZA744408B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (42)

* 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 (fr) * 1976-04-30 1978-03-03 Ppm Sa Dispositif de controle de la mise en communication de deux enceintes et suspension de vehicule en faisant application
US4039085A (en) * 1976-06-10 1977-08-02 Koehring Company Crane with a pivoted boom and a float valve therefor
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
US4167892A (en) * 1977-04-07 1979-09-18 Caterpillar Tractor Co. Load check with mechanical venting means
US4170246A (en) * 1977-05-23 1979-10-09 Sta-Rite Industries, Inc. Pilot operator valve
US4286432A (en) * 1979-08-30 1981-09-01 Caterpillar Tractor Co. Lock valve with variable length piston and hydraulic system for a work implement using the same
FI60429C (fi) * 1980-06-05 1982-01-11 Tampella Oy Ab Hydraulisk 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 (de) * 1982-07-08 1984-01-12 Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover Pneumatische tuerbetaetigungsanlage
US4619187A (en) * 1982-10-25 1986-10-28 Caterpillar Inc. Fluid control for two independent actuators
US4761953A (en) * 1984-04-18 1988-08-09 Dynamic Hydraulic Systems, Inc. Hydraulic elevator mechanism
DE3611212C1 (de) * 1986-04-04 1987-06-11 Ernst Dipl-Ing Korthaus Steuerung fuer Hydraulikzylinder als Antriebe fuer Kolbenpumpen
DE3613747A1 (de) * 1986-04-23 1987-10-29 Concordia Fluidtechnik Gmbh 5/3-ventil
US4761954A (en) * 1987-03-16 1988-08-09 Dynamic Hydraulic Systems, Inc. Fork-lift system
DE3739525A1 (de) * 1987-11-21 1989-06-01 Orenstein & Koppel Ag Planierfahrzeug
AT388483B (de) * 1988-03-30 1989-06-26 Steyr Daimler Puch Ag Hubstange zur verbindung der hubarme mit den unterlenkern bei einem hydraulischen schlepperhubwerk
JPH0454352Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1989-08-29 1992-12-21
DE9005983U1 (de) * 1990-05-26 1991-09-19 Robert Bosch Gmbh, 7000 Stuttgart Steuereinrichtung für einen Arbeitszylinder
AT402334B (de) * 1991-03-20 1997-04-25 Hoerbiger Gmbh Hydraulische zylinder/kolben-anordnung
FR2684066B1 (fr) * 1991-11-26 1994-01-07 Messier Bugatti Systeme d'actionnement du verin de manóoeuvre d'un train d'atterrissage d'avion.
ATE150536T1 (de) * 1993-02-02 1997-04-15 Putzmeister Maschf Verfahren zum fördern von vorzerkleinerten metallschrott oder dergleichen festkörper enthaltenden dickstoffen
NL9500181A (nl) * 1995-02-01 1996-09-02 Applied Power Inc Besturings- en bedieningssysteem, in het bijzonder voor een hydraulische aandrijfelement van een vouwdakinstallatie van een voertuig.
JP3778634B2 (ja) 1996-11-22 2006-05-24 Ｓｍｃ株式会社 パイロットチェック弁付スピードコントローラ
US6293181B1 (en) 1998-04-16 2001-09-25 Caterpillar Inc. Control system providing a float condition for a hydraulic cylinder
DE19919014C2 (de) * 1999-04-27 2001-03-01 Danfoss Fluid Power As Nordbor Hydraulikventil mit einer Verriegelungs- und einer Schwimmfunktion
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 (de) * 2001-11-08 2002-01-17 Knopff, Dieter, 38388 Twieflingen Sperrventilanordnung und Steuerventil mit einer derartigen Sperrventilanordnung
KR100849500B1 (ko) * 2006-11-29 2008-07-31 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 플로팅 기능이 구비된 더블 체크밸브
DE102007032415B3 (de) * 2007-07-12 2009-04-02 Sauer-Danfoss Aps Hydraulische Ventilanordnung
KR100915206B1 (ko) * 2007-09-20 2009-09-02 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 플로팅 기능이 구비된 더블 체크밸브
FR2933471B1 (fr) * 2008-07-03 2013-02-15 Vianney Rabhi Vanne electro-hydraulique a levee de bille pour centrale hydraulique de moteur a taux de compression variable
US8333218B2 (en) * 2010-01-27 2012-12-18 Mac Valves, Inc. Proportional pressure controller
US9068322B2 (en) * 2010-05-18 2015-06-30 Volvo Construction Equipment Ab 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 (it) * 2019-04-04 2020-10-04 Nem S R L Circuito idraulico di azionamento per macchina operatrice con articolazione meccanica dotata di funzione flottante.
US12085099B1 (en) * 2020-06-18 2024-09-10 Vacuworx Global, LLC Flow control block for use with a vacuum material handler

Family Cites Families (9)

* 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
JPS4423873Y1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1965-05-12 1969-10-08
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 (de) * 1968-08-17 1970-06-30 Herion Werke Kg Sicherheitssteuerung, insbesondere eines Pressenantriebes
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 (de) * 1970-10-02 1979-08-09 Danfoss A/S, Nordborg (Daenemark) Ventilanordnung für hydraulische Lenkvorrichtungen

Also Published As

Publication number Publication date
AU7175074A (en) 1976-01-29
JPS5054778A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-05-14
US3908515A (en) 1975-09-30
BR7406750D0 (pt) 1975-09-09
BE819721A (fr) 1975-03-10
JPS5535563B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1980-09-16
ZA744408B (en) 1975-08-27

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