FR1128024A - Improvements made to expansion bolts, for support or anchoring, especially in mine roofs - Google Patents

Improvements made to expansion bolts, for support or anchoring, especially in mine roofs

Info

Publication number
FR1128024A
FR1128024A FR1128024DA FR1128024A FR 1128024 A FR1128024 A FR 1128024A FR 1128024D A FR1128024D A FR 1128024DA FR 1128024 A FR1128024 A FR 1128024A
Authority
FR
France
Prior art keywords
anchoring
support
improvements made
expansion bolts
mine roofs
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
Other languages
French (fr)
Inventor
Jean Pierrard
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
Application granted granted Critical
Publication of FR1128024A publication Critical patent/FR1128024A/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
    • E21D21/008—Anchoring or tensioning means

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)
FR1128024D 1955-06-18 1955-06-18 Improvements made to expansion bolts, for support or anchoring, especially in mine roofs Expired FR1128024A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1128024T 1955-06-18

Publications (1)

Publication Number Publication Date
FR1128024A true FR1128024A (en) 1957-01-02

Family

ID=9635981

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1128024D Expired FR1128024A (en) 1955-06-18 1955-06-18 Improvements made to expansion bolts, for support or anchoring, especially in mine roofs

Country Status (1)

Country Link
FR (1) FR1128024A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3022700A (en) * 1958-03-14 1962-02-27 Pattin Mfg Company Inc Mine roof bolt assembly with sequential multiple expansion means
US5018908A (en) * 1989-10-31 1991-05-28 American Mining Supply, Inc. Anchor assembly for a mine roof bolt
US5219248A (en) * 1992-05-14 1993-06-15 The Eastern Company Mine roof expansion anchor with improved bore hole engagement means and method of installation thereof
US5344257A (en) * 1992-12-02 1994-09-06 The Eastern Company Mine roof expansion anchor and bail element
TWI682102B (en) * 2014-04-23 2020-01-11 日商豐和股份有限公司 Anchor bolt

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3022700A (en) * 1958-03-14 1962-02-27 Pattin Mfg Company Inc Mine roof bolt assembly with sequential multiple expansion means
US5018908A (en) * 1989-10-31 1991-05-28 American Mining Supply, Inc. Anchor assembly for a mine roof bolt
US5219248A (en) * 1992-05-14 1993-06-15 The Eastern Company Mine roof expansion anchor with improved bore hole engagement means and method of installation thereof
US5344257A (en) * 1992-12-02 1994-09-06 The Eastern Company Mine roof expansion anchor and bail element
AU663157B2 (en) * 1992-12-02 1995-09-28 Eastern Company, The Mine roof expansion anchor and bail element
TWI682102B (en) * 2014-04-23 2020-01-11 日商豐和股份有限公司 Anchor bolt

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