FR2286943B1 - - Google Patents

Info

Publication number
FR2286943B1
FR2286943B1 FR7530004A FR7530004A FR2286943B1 FR 2286943 B1 FR2286943 B1 FR 2286943B1 FR 7530004 A FR7530004 A FR 7530004A FR 7530004 A FR7530004 A FR 7530004A FR 2286943 B1 FR2286943 B1 FR 2286943B1
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
FR7530004A
Other languages
French (fr)
Other versions
FR2286943A1 (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.)
Hemscheidt Hermann Maschinenfabrik GmbH and Co
Original Assignee
Hemscheidt Hermann Maschinenfabrik GmbH and Co
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 Hemscheidt Hermann Maschinenfabrik GmbH and Co filed Critical Hemscheidt Hermann Maschinenfabrik GmbH and Co
Publication of FR2286943A1 publication Critical patent/FR2286943A1/fr
Application granted granted Critical
Publication of FR2286943B1 publication Critical patent/FR2286943B1/fr
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Sliding Valves (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Multiple-Way Valves (AREA)
  • Fluid-Driven Valves (AREA)
FR7530004A 1974-10-04 1975-10-01 Soupape de commande pour un soutenement de taille hydrauliquement marchant Granted FR2286943A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742447425 DE2447425B2 (de) 1974-10-04 1974-10-04 Steuerventil fuer hydraulisch schreitenden strebausbau

Publications (2)

Publication Number Publication Date
FR2286943A1 FR2286943A1 (fr) 1976-04-30
FR2286943B1 true FR2286943B1 (en:Method) 1978-04-07

Family

ID=5927578

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7530004A Granted FR2286943A1 (fr) 1974-10-04 1975-10-01 Soupape de commande pour un soutenement de taille hydrauliquement marchant

Country Status (4)

Country Link
JP (1) JPS5185523A (en:Method)
DE (1) DE2447425B2 (en:Method)
FR (1) FR2286943A1 (en:Method)
ZA (1) ZA756039B (en:Method)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2537715C3 (de) * 1975-08-23 1980-11-06 Saarbergwerke Ag, 6600 Saarbruecken Druckminderventilanordnung und -ausbildung für die Verbindung der beiden Druckräume eines zweistufigen teleskopischen Grubenstempels
DE2738235C2 (de) * 1977-08-25 1982-06-16 Klöckner-Werke AG, 4100 Duisburg Hochdrucksitzventil
DE2743829C2 (de) * 1977-09-29 1984-03-29 Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen Mehrwegeventil
NL8201105A (nl) * 1982-03-17 1983-10-17 Beta Bv Pneumatische schakelaar, bijvoorbeeld voor overdrukbeveiliging.
FR2595770B1 (fr) * 1986-03-13 1989-12-08 Brev Ind Marine Exploit Dispositif d'alimentation en fluide d'une installation hydraulique, pneumatique ou hydro-pneumatique

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1021221B (de) * 1955-11-25 1957-12-19 Franz Clouth Rheinische Gummiw Hilfsgesteuertes Mehrwegeventil

Also Published As

Publication number Publication date
DE2447425B2 (de) 1976-07-29
DE2447425A1 (de) 1976-04-08
JPS5185523A (en:Method) 1976-07-27
ZA756039B (en) 1976-08-25
FR2286943A1 (fr) 1976-04-30

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Legal Events

Date Code Title Description
ST Notification of lapse