FR2526091B1 - - Google Patents

Info

Publication number
FR2526091B1
FR2526091B1 FR8306930A FR8306930A FR2526091B1 FR 2526091 B1 FR2526091 B1 FR 2526091B1 FR 8306930 A FR8306930 A FR 8306930A FR 8306930 A FR8306930 A FR 8306930A FR 2526091 B1 FR2526091 B1 FR 2526091B1
Authority
FR
France
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
FR8306930A
Other languages
French (fr)
Other versions
FR2526091A1 (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.)
Gewerkschaft Eisenhutte Westfalia GmbH
Original Assignee
Gewerkschaft Eisenhutte Westfalia 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 Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Publication of FR2526091A1 publication Critical patent/FR2526091A1/fr
Application granted granted Critical
Publication of FR2526091B1 publication Critical patent/FR2526091B1/fr
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50—Component parts or details of props
    • E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
    • E21D15/517—Extension elements
    • 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)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Press Drives And Press Lines (AREA)
  • Actuator (AREA)
FR8306930A 1982-04-28 1983-04-27 Verin hydraulique de poussee pour mecanisme de foncage horizontal Granted FR2526091A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19828212164 DE8212164U1 (de) 1982-04-28 1982-04-28 Hydraulischer presszylinder fuer den rohrvorpressbetrieb

Publications (2)

Publication Number Publication Date
FR2526091A1 FR2526091A1 (fr) 1983-11-04
FR2526091B1 true FR2526091B1 (enrdf_load_stackoverflow) 1985-04-26

Family

ID=6739520

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8306930A Granted FR2526091A1 (fr) 1982-04-28 1983-04-27 Verin hydraulique de poussee pour mecanisme de foncage horizontal

Country Status (3)

Country Link
AU (1) AU559835B2 (enrdf_load_stackoverflow)
DE (1) DE8212164U1 (enrdf_load_stackoverflow)
FR (1) FR2526091A1 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3622424A1 (de) * 1986-07-03 1988-01-14 Montan Hydraulik Gmbh & Co Kg Zweistufiger teleskopzylinder
DE3829646A1 (de) * 1988-09-01 1990-03-15 Teves Gmbh Alfred Reservoir fuer einen druckmittelkreis, insbesondere flugzeughydraulikkreis

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB954676A (en) * 1960-12-22 1964-04-08 Dowty Mining Equipment Ltd Telescopic hydraulic props
FR1366520A (fr) * 1962-08-21 1964-07-10 Electro Hydraulics Ltd Dispositifs de soutènement pour exploitations minières
FR1431566A (fr) * 1965-04-23 1966-03-11 Gewerk Eisenhuette Westfalia étançon à semelle amovible, utilisable notamment dans les mines
US3610100A (en) * 1969-06-12 1971-10-05 Koehring Co Telescopic actuator
DE2941168A1 (de) * 1979-10-11 1981-04-23 Thyssen Industrie Ag, 4300 Essen Hydraulisch betaetigbares schubkolbengetriebe, vornehmlich zur verwendung im bergbau

Also Published As

Publication number Publication date
DE8212164U1 (de) 1982-08-12
FR2526091A1 (fr) 1983-11-04
AU559835B2 (en) 1987-03-19
AU1393183A (en) 1983-11-03

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Legal Events

Date Code Title Description
ST Notification of lapse