NO822479L - Hydraulisk jekk. - Google Patents

Hydraulisk jekk.

Info

Publication number: NO822479L
Authority: NO; Norway
Prior art keywords: fluid; passage; valve; chamber; pressure
Prior art date: 1981-11-16

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.)

1981-11-16

Filing date

1982-07-16

Publication date

1983-05-18

1982-07-16 Application filed by Hydra Jack Inc filed Critical Hydra Jack Inc

1983-05-18 Publication of NO822479L publication Critical patent/NO822479L/no

Links

239000012530 fluid Substances 0.000 claims description 78
238000007789 sealing Methods 0.000 claims description 3
230000036461 convulsion Effects 0.000 claims 1
230000008878 coupling Effects 0.000 description 3
238000010168 coupling process Methods 0.000 description 3
238000005859 coupling reaction Methods 0.000 description 3
230000000694 effects Effects 0.000 description 2
238000006073 displacement reaction Methods 0.000 description 1
230000002441 reversible effect Effects 0.000 description 1

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)
Lubricants (AREA)
Vehicle Body Suspensions (AREA)
Percussive Tools And Related Accessories (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 (da)
EP (1)	EP0081909A1 (da)
JP (1)	JPS5889596A (da)
DK (1)	DK509482A (da)
NO (1)	NO822479L (da)
SE (1)	SE8204075L (da)
ZA (1)	ZA824452B (da)

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
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
DE2952609A1 (de) *	1979-12-28	1981-07-02	Etablissements Henrion, Camon-Amiens	Doppeltwirkende hydraulische hubvorrichtung

1981
- 1981-11-16 US US06/321,802 patent/US4445666A/en not_active Expired - Fee Related
1982
- 1982-06-23 ZA ZA824452A patent/ZA824452B/xx unknown
- 1982-07-01 SE SE8204075A patent/SE8204075L/ not_active Application Discontinuation
- 1982-07-15 JP JP57123759A patent/JPS5889596A/ja active Pending
- 1982-07-16 NO NO822479A patent/NO822479L/no unknown
- 1982-11-12 EP EP82306051A patent/EP0081909A1/en not_active Withdrawn
- 1982-11-16 DK DK509482A patent/DK509482A/da not_active Application Discontinuation

Also Published As

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

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