FR89582E - Further development of support devices for retaining bolts - Google Patents

Further development of support devices for retaining bolts

Info

Publication number
FR89582E
FR89582E FR50391A FR50391A FR89582E FR 89582 E FR89582 E FR 89582E FR 50391 A FR50391 A FR 50391A FR 50391 A FR50391 A FR 50391A FR 89582 E FR89582 E FR 89582E
Authority
FR
France
Prior art keywords
further development
support devices
retaining bolts
bolts
retaining
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.)
Expired
Application number
FR50391A
Other languages
French (fr)
Inventor
Jean-Pierre Willy Bock
Bock
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 filed Critical
Priority to FR50391A priority Critical patent/FR89582E/en
Application granted granted Critical
Publication of FR89582E publication Critical patent/FR89582E/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0086—Bearing plates

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR50391A 1966-02-21 1966-02-21 Further development of support devices for retaining bolts Expired FR89582E (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR50391A FR89582E (en) 1966-02-21 1966-02-21 Further development of support devices for retaining bolts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR50391A FR89582E (en) 1966-02-21 1966-02-21 Further development of support devices for retaining bolts

Publications (1)

Publication Number Publication Date
FR89582E true FR89582E (en) 1967-07-13

Family

ID=8601865

Family Applications (1)

Application Number Title Priority Date Filing Date
FR50391A Expired FR89582E (en) 1966-02-21 1966-02-21 Further development of support devices for retaining bolts

Country Status (1)

Country Link
FR (1) FR89582E (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0094908A2 (en) * 1982-05-14 1983-11-23 H. Weidmann AG Anchor bolt for ground strengthening

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0094908A2 (en) * 1982-05-14 1983-11-23 H. Weidmann AG Anchor bolt for ground strengthening
EP0094908A3 (en) * 1982-05-14 1986-04-02 H. Weidmann Ag Anchor bolt for ground strengthening

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