DE8912528U1 - - Google Patents

Info

Publication number
DE8912528U1
DE8912528U1 DE8912528U DE8912528U DE8912528U1 DE 8912528 U1 DE8912528 U1 DE 8912528U1 DE 8912528 U DE8912528 U DE 8912528U DE 8912528 U DE8912528 U DE 8912528U DE 8912528 U1 DE8912528 U1 DE 8912528U1
Authority
DE
Germany
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
DE8912528U
Other languages
German (de)
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.)
MASCHINENFABRIK JOERN DAMS 4320 HATTINGEN DE
Original Assignee
MASCHINENFABRIK JOERN DAMS 4320 HATTINGEN DE
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 MASCHINENFABRIK JOERN DAMS 4320 HATTINGEN DE filed Critical MASCHINENFABRIK JOERN DAMS 4320 HATTINGEN DE
Priority to DE8912528U priority Critical patent/DE8912528U1/de
Publication of DE8912528U1 publication Critical patent/DE8912528U1/de
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/60—Devices for withdrawing props or chocks
    • E21D15/603—Devices for withdrawing props or chocks by means of hydraulic devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/58—Devices for setting props or chocks
DE8912528U 1989-10-23 1989-10-23 Expired DE8912528U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8912528U DE8912528U1 (en) 1989-10-23 1989-10-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE8912528U DE8912528U1 (en) 1989-10-23 1989-10-23

Publications (1)

Publication Number Publication Date
DE8912528U1 true DE8912528U1 (en) 1989-12-21

Family

ID=6843922

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8912528U Expired DE8912528U1 (en) 1989-10-23 1989-10-23

Country Status (1)

Country Link
DE (1) DE8912528U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0545023A1 (en) * 1991-12-06 1993-06-09 Richard Voss Grubenausbau Gmbh Hydraulic prop with fill/release valve and recirculation of pressure liquid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0545023A1 (en) * 1991-12-06 1993-06-09 Richard Voss Grubenausbau Gmbh Hydraulic prop with fill/release valve and recirculation of pressure liquid

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