FR2345644A1 - Soupape de surete - Google Patents

Soupape de surete

Info

Publication number
FR2345644A1
FR2345644A1 FR7707509A FR7707509A FR2345644A1 FR 2345644 A1 FR2345644 A1 FR 2345644A1 FR 7707509 A FR7707509 A FR 7707509A FR 7707509 A FR7707509 A FR 7707509A FR 2345644 A1 FR2345644 A1 FR 2345644A1
Authority
FR
France
Prior art keywords
axial hole
piston unit
porous support
hydraulic piston
pressure limiting
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
FR7707509A
Other languages
English (en)
Other versions
FR2345644B1 (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.)
Bochumer Eisenhuette Heintzmann GmbH and Co KG
Original Assignee
Bochumer Eisenhuette Heintzmann GmbH and Co KG
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 Bochumer Eisenhuette Heintzmann GmbH and Co KG filed Critical Bochumer Eisenhuette Heintzmann GmbH and Co KG
Publication of FR2345644A1 publication Critical patent/FR2345644A1/fr
Application granted granted Critical
Publication of FR2345644B1 publication Critical patent/FR2345644B1/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
    • E21D15/512—Arrangement of valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Safety Valves (AREA)
  • Prostheses (AREA)
FR7707509A 1976-03-26 1977-03-14 Soupape de surete Granted FR2345644A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762612953 DE2612953C3 (de) 1976-03-26 1976-03-26 Druckbegrenzungsventil für hydraulische Grubenstempel

Publications (2)

Publication Number Publication Date
FR2345644A1 true FR2345644A1 (fr) 1977-10-21
FR2345644B1 FR2345644B1 (fr) 1983-03-18

Family

ID=5973535

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7707509A Granted FR2345644A1 (fr) 1976-03-26 1977-03-14 Soupape de surete

Country Status (2)

Country Link
DE (1) DE2612953C3 (fr)
FR (1) FR2345644A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3325580C2 (de) * 1983-07-15 1985-07-18 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Rückschlagventil
DE3426018A1 (de) * 1984-07-14 1986-01-23 GAT Grubenausbau GmbH, 5840 Schwerte Einstellvorrichtung fuer druckbegrenzungsventile
US20150267822A1 (en) * 2014-03-18 2015-09-24 Mine Support Products (Pty) Ltd Valve

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1345970A (fr) * 1963-01-24 1963-12-13 Gullick Ltd Soupape de commande de l'écoulement d'un fluide
FR1515176A (fr) * 1967-01-13 1968-03-01 Bennes Marrel Perfectionnements aux valves de sûreté pour le coulissement des étançons hydrauliques assurant le soutènement dans les mines
FR93020E (fr) * 1967-01-03 1969-01-31 Houilleres Bassin Du Nord Dispositif limiteur de pression a obturateur commandé par fluide.
FR2061188A5 (fr) * 1969-09-13 1971-06-18 Bosch
FR2093305A5 (fr) * 1970-06-10 1972-01-28 Bennes Marrel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1345970A (fr) * 1963-01-24 1963-12-13 Gullick Ltd Soupape de commande de l'écoulement d'un fluide
FR93020E (fr) * 1967-01-03 1969-01-31 Houilleres Bassin Du Nord Dispositif limiteur de pression a obturateur commandé par fluide.
FR1515176A (fr) * 1967-01-13 1968-03-01 Bennes Marrel Perfectionnements aux valves de sûreté pour le coulissement des étançons hydrauliques assurant le soutènement dans les mines
FR2061188A5 (fr) * 1969-09-13 1971-06-18 Bosch
FR2093305A5 (fr) * 1970-06-10 1972-01-28 Bennes Marrel

Also Published As

Publication number Publication date
DE2612953B2 (de) 1979-01-04
DE2612953C3 (de) 1979-08-30
DE2612953A1 (de) 1977-09-29
FR2345644B1 (fr) 1983-03-18

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Legal Events

Date Code Title Description
ST Notification of lapse