FR2121777A1 - - Google Patents

Info

Publication number
FR2121777A1
FR2121777A1 FR7200915A FR7200915A FR2121777A1 FR 2121777 A1 FR2121777 A1 FR 2121777A1 FR 7200915 A FR7200915 A FR 7200915A FR 7200915 A FR7200915 A FR 7200915A FR 2121777 A1 FR2121777 A1 FR 2121777A1
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.)
Granted
Application number
FR7200915A
Other languages
French (fr)
Other versions
FR2121777B1 (OSRAM
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.)
Rheinstahl AG
Original Assignee
Rheinstahl AG
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 Rheinstahl AG filed Critical Rheinstahl AG
Publication of FR2121777A1 publication Critical patent/FR2121777A1/fr
Application granted granted Critical
Publication of FR2121777B1 publication Critical patent/FR2121777B1/fr
Expired 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
    • E21D15/14—Telescopic props
    • E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props

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)
  • Forging (AREA)
FR7200915A 1971-01-14 1972-01-12 Expired FR2121777B1 (OSRAM)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712101475 DE2101475A1 (de) 1971-01-14 1971-01-14 Hydraulischer Grubenstempel

Publications (2)

Publication Number Publication Date
FR2121777A1 true FR2121777A1 (OSRAM) 1972-08-25
FR2121777B1 FR2121777B1 (OSRAM) 1974-06-21

Family

ID=5795796

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7200915A Expired FR2121777B1 (OSRAM) 1971-01-14 1972-01-12

Country Status (4)

Country Link
AT (1) AT310698B (OSRAM)
BE (1) BE775745A (OSRAM)
DE (1) DE2101475A1 (OSRAM)
FR (1) FR2121777B1 (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2603978C3 (de) * 1976-02-03 1982-10-14 Thyssen Industrie Ag, 4300 Essen Gebirgsschlagventilanordnung in einem hydraulischen Grubenstempel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
AT310698B (de) 1973-10-10
BE775745A (fr) 1972-03-16
DE2101475A1 (de) 1972-08-03
FR2121777B1 (OSRAM) 1974-06-21

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Legal Events

Date Code Title Description
ST Notification of lapse