NO822479L - Hydraulisk jekk. - Google Patents

Hydraulisk jekk.

Info

Publication number
NO822479L
NO822479L NO822479A NO822479A NO822479L NO 822479 L NO822479 L NO 822479L NO 822479 A NO822479 A NO 822479A NO 822479 A NO822479 A NO 822479A NO 822479 L NO822479 L NO 822479L
Authority
NO
Norway
Prior art keywords
fluid
passage
valve
chamber
pressure
Prior art date
Application number
NO822479A
Other languages
English (en)
Norwegian (no)
Inventor
Hugh L Mcdermott
Original Assignee
Hydra Jack 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 Hydra Jack Inc filed Critical Hydra Jack Inc
Publication of NO822479L publication Critical patent/NO822479L/no

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Vehicle Body Suspensions (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Lubricants (AREA)
  • Actuator (AREA)
NO822479A 1981-11-16 1982-07-16 Hydraulisk jekk. NO822479L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/321,802 US4445666A (en) 1981-11-16 1981-11-16 Hydraulic jack device

Publications (1)

Publication Number Publication Date
NO822479L true NO822479L (no) 1983-05-18

Family

ID=23252090

Family Applications (1)

Application Number Title Priority Date Filing Date
NO822479A NO822479L (no) 1981-11-16 1982-07-16 Hydraulisk jekk.

Country Status (7)

Country Link
US (1) US4445666A (sv)
EP (1) EP0081909A1 (sv)
JP (1) JPS5889596A (sv)
DK (1) DK509482A (sv)
NO (1) NO822479L (sv)
SE (1) SE8204075L (sv)
ZA (1) ZA824452B (sv)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4838532A (en) * 1987-08-10 1989-06-13 Aladdin Engineering & Mfg., Inc. Fluid operated clamping device including fluid pressure locking means
US5524868A (en) * 1993-08-26 1996-06-11 Templeton, Kenly & Co., Inc. Hydraulic toe jack
US20080099748A1 (en) * 2006-10-31 2008-05-01 Arzouman Harry H Commercial lifting device-handle controls
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

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2483312A (en) * 1944-08-02 1949-09-27 Bendix Aviat Corp Valve
US2467509A (en) * 1944-11-28 1949-04-19 Bendix Aviat Corp Hydraulic system
GB745600A (en) * 1953-11-17 1956-02-29 Dowty Hydraulic Units Ltd Improvements in manually operable hydraulic actuators
US3349671A (en) * 1965-10-21 1967-10-31 Benton Harbor Engineering Work Holding valve with thermal relief
US3890684A (en) * 1974-05-09 1975-06-24 Erven Tallman Method of making a hydraulic jack
US3974742A (en) * 1974-10-31 1976-08-17 Caterpillar Tractor Co. Lock valve assembly
US4174095A (en) * 1978-02-17 1979-11-13 General Electric Company Hydraulic jack
US4192338A (en) * 1978-05-15 1980-03-11 Gerulis Benedict R Hydraulic lock-out device
WO1981000600A1 (en) * 1979-08-30 1981-03-05 Caterpillar Tractor Co Lock valve with variable length piston and hydraulic system for a work implement using the same
DE2952609A1 (de) * 1979-12-28 1981-07-02 Etablissements Henrion, Camon-Amiens Doppeltwirkende hydraulische hubvorrichtung

Also Published As

Publication number Publication date
US4445666A (en) 1984-05-01
ZA824452B (en) 1984-04-25
SE8204075L (sv) 1983-05-17
JPS5889596A (ja) 1983-05-27
EP0081909A1 (en) 1983-06-22
SE8204075D0 (sv) 1982-07-01
DK509482A (da) 1983-05-17

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