DE3274669D1 - Jacking apparatus and methods of effecting repositioning strokes thereof - Google Patents

Jacking apparatus and methods of effecting repositioning strokes thereof

Info

Publication number
DE3274669D1
DE3274669D1 DE8282306714T DE3274669T DE3274669D1 DE 3274669 D1 DE3274669 D1 DE 3274669D1 DE 8282306714 T DE8282306714 T DE 8282306714T DE 3274669 T DE3274669 T DE 3274669T DE 3274669 D1 DE3274669 D1 DE 3274669D1
Authority
DE
Germany
Prior art keywords
strokes
methods
jacking apparatus
repositioning
effecting
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
DE8282306714T
Other languages
German (de)
English (en)
Inventor
Michael J Leglue
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.)
McDermott Inc
Original Assignee
McDermott Inc
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 McDermott Inc filed Critical McDermott Inc
Application granted granted Critical
Publication of DE3274669D1 publication Critical patent/DE3274669D1/de
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C3/00—Launching or hauling-out by landborne slipways; Slipways
    • B63C3/08—Tracks on slipways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F1/00—Devices, e.g. jacks, for lifting loads in predetermined steps
    • B66F1/02—Devices, e.g. jacks, for lifting loads in predetermined steps with locking elements, e.g. washers, co-operating with posts
    • B66F1/04—Devices, e.g. jacks, for lifting loads in predetermined steps with locking elements, e.g. washers, co-operating with posts the posts being toothed
    • B66F1/08—Devices, e.g. jacks, for lifting loads in predetermined steps with locking elements, e.g. washers, co-operating with posts the posts being toothed and the devices being operated by fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/26—Adaptations or arrangements of pistons
    • 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
    • F15B11/00—Servomotor systems without provision for follow-up action ; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or the actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or the actuating force of an output member for controlling the actuating force
    • F15B11/036—Systems essentially incorporating special features for controlling the speed or the actuating force of an output member for controlling the actuating force by means of servomotors having a plurality of working chambers
    • F15B11/0365—Tandem constructions
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20538—Type of pump constant capacity
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F15B2211/30565—Assemblies of multiple valves having multiple valves for a single output member, e.g. for creating higher valve function by use of multiple valves like two 2/2-valves replacing a 5/3-valve
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3122—Special positions other than the pump port being connected to working ports or the working ports being connected to the return line
    • 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
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7055—Linear output members having more than two chambers
    • F15B2211/7056—Tandem cylinders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Engineering & Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Actuator (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Waveguide Aerials (AREA)
  • Making Paper Articles (AREA)
  • Dowels (AREA)
  • Centrifugal Separators (AREA)
DE8282306714T 1981-12-17 1982-12-16 Jacking apparatus and methods of effecting repositioning strokes thereof Expired DE3274669D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/331,737 US4506867A (en) 1981-12-17 1981-12-17 Jacking apparatus having a fast repositioning stroke

Publications (1)

Publication Number Publication Date
DE3274669D1 true DE3274669D1 (en) 1987-01-22

Family

ID=23295167

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282306714T Expired DE3274669D1 (en) 1981-12-17 1982-12-16 Jacking apparatus and methods of effecting repositioning strokes thereof

Country Status (8)

Country Link
US (1) US4506867A (enExample)
EP (1) EP0082676B1 (enExample)
JP (1) JPS58109395A (enExample)
KR (1) KR860000172B1 (enExample)
AU (1) AU554581B2 (enExample)
DE (1) DE3274669D1 (enExample)
IN (1) IN157339B (enExample)
NO (1) NO824239L (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60148707U (ja) * 1984-03-10 1985-10-02 日本鉱機株式会社 重量物移動装置
DE3523944A1 (de) * 1985-07-04 1987-01-15 Dyckerhoff & Widmann Ag Einrichtung zum bewegen schwerer lasten, z. b. baukoerper, gerueste oder dergleichen
US5098065A (en) * 1987-12-22 1992-03-24 Aldo Beletich Mine extraction device and method
GB8905202D0 (en) * 1989-03-08 1989-04-19 Qualter Hall & Co Ltd Power operated device
US5114861A (en) * 1990-09-14 1992-05-19 General Electric Company Detecting the endpoint in interfacial aromatic polycarbonate polymerization reactions
CA2185378A1 (en) * 1995-09-29 1997-03-30 Joseph E. O'brien Actuator for forming a flange on a wheelhouse
FI100677B (fi) 1996-09-13 1998-01-30 Multilift Oy Menetelmä hydraulisesti käytetyn koneen liikenopeuden ohjaamiseksi, hy draulisesti käytetyn koneen käyttöjärjestelmä ja ohjauslaitteisto
US6572080B1 (en) 2001-06-15 2003-06-03 Chris A. Delikatzis Dual hydraulic jack system
JP5714341B2 (ja) * 2011-01-19 2015-05-07 ナブテスコ株式会社 航空機用アクチュエータ
US20150217938A1 (en) * 2014-02-05 2015-08-06 Ventura Hydraulic & Machine Works, Inc. Hydraulic Device With Heating Element
WO2016080874A1 (en) 2014-11-19 2016-05-26 Saab Ab A fluid actuator arrangement
US11286965B2 (en) 2016-05-19 2022-03-29 Saab Ab Fluid actuator arrangement and a method for control of a fluid actuator arrangement

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
US2962001A (en) * 1958-11-07 1960-11-29 Hartford Special Machinery Co Hydro-pneumatic power mechanism
US3170379A (en) * 1962-02-13 1965-02-23 Dempster Brothers Inc Hydraulic system
US3680713A (en) * 1970-11-09 1972-08-01 Snorkel Fire Equipment Co Fluid power device
US4024794A (en) * 1973-02-02 1977-05-24 Amp Incorporated Pneumatically operated cable-slitting tool
FR2309430A1 (fr) * 1975-05-02 1976-11-26 Union Ind Entreprise Dispositif de manutention destine au ripage de lourdes charges
US4007915A (en) * 1975-12-15 1977-02-15 Hydranautics Jacking apparatus
GB1568086A (en) * 1976-03-05 1980-05-21 Kosmala R Hydraulic devices
US4296677A (en) * 1979-06-25 1981-10-27 Mcdonnell Douglas Corporation Tandem hydraulic actuator

Also Published As

Publication number Publication date
US4506867A (en) 1985-03-26
EP0082676A2 (en) 1983-06-29
AU554581B2 (en) 1986-08-28
AU9156082A (en) 1983-06-23
JPS58109395A (ja) 1983-06-29
NO824239L (no) 1983-06-20
EP0082676A3 (en) 1983-11-30
EP0082676B1 (en) 1986-12-10
KR860000172B1 (ko) 1986-02-28
KR840002734A (ko) 1984-07-16
IN157339B (enExample) 1986-03-01

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee