FR2246489A1 - Multi-stage non-rotating hydraulic jack - has external key on each section base working in keyway - Google Patents

Multi-stage non-rotating hydraulic jack - has external key on each section base working in keyway

Info

Publication number
FR2246489A1
FR2246489A1 FR7433730A FR7433730A FR2246489A1 FR 2246489 A1 FR2246489 A1 FR 2246489A1 FR 7433730 A FR7433730 A FR 7433730A FR 7433730 A FR7433730 A FR 7433730A FR 2246489 A1 FR2246489 A1 FR 2246489A1
Authority
FR
France
Prior art keywords
keyway
external key
hydraulic jack
cylinder
section base
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.)
Granted
Application number
FR7433730A
Other languages
English (en)
Other versions
FR2246489B1 (fr
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.)
Benteler Deustchland GmbH
Original Assignee
Benteler Deustchland GmbH
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 Benteler Deustchland GmbH filed Critical Benteler Deustchland GmbH
Publication of FR2246489A1 publication Critical patent/FR2246489A1/fr
Application granted granted Critical
Publication of FR2246489B1 publication Critical patent/FR2246489B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B66F3/28—Adaptations or arrangements of pistons telescopic
    • 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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Earth Drilling (AREA)
  • Types And Forms Of Lifts (AREA)
FR7433730A 1973-10-04 1974-10-02 Multi-stage non-rotating hydraulic jack - has external key on each section base working in keyway Granted FR2246489A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732349889 DE2349889A1 (de) 1973-10-04 1973-10-04 Mehrstufige, hydraulische hubvorrichtung mit verdrehsicherung

Publications (2)

Publication Number Publication Date
FR2246489A1 true FR2246489A1 (en) 1975-05-02
FR2246489B1 FR2246489B1 (fr) 1978-06-09

Family

ID=5894530

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7433730A Granted FR2246489A1 (en) 1973-10-04 1974-10-02 Multi-stage non-rotating hydraulic jack - has external key on each section base working in keyway

Country Status (4)

Country Link
CH (1) CH587776A5 (fr)
DE (1) DE2349889A1 (fr)
FR (1) FR2246489A1 (fr)
NL (1) NL7412703A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0139792A1 (fr) * 1983-10-04 1985-05-08 Hudson Machinery Corporation Dispositif pour l'ébarbage
JP2008223845A (ja) * 2007-03-12 2008-09-25 Applied Power Japan Kk 保護カバーを有する目盛り付きジャッキ
DE102008064294B4 (de) * 2008-12-20 2015-06-25 Büter Hebetechnik GmbH Hubvorrichtung für ein Schiffsteuerhaus

Also Published As

Publication number Publication date
CH587776A5 (fr) 1977-05-13
FR2246489B1 (fr) 1978-06-09
NL7412703A (nl) 1975-04-08
DE2349889A1 (de) 1975-04-10

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Legal Events

Date Code Title Description
ST Notification of lapse