FR1092484A - Expandable Shell Anchor Device - Google Patents

Expandable Shell Anchor Device

Info

Publication number
FR1092484A
FR1092484A FR1092484DA FR1092484A FR 1092484 A FR1092484 A FR 1092484A FR 1092484D A FR1092484D A FR 1092484DA FR 1092484 A FR1092484 A FR 1092484A
Authority
FR
France
Prior art keywords
anchor device
expandable shell
shell anchor
expandable
shell
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
Henri-Charles Prieur
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 FR1092484A publication Critical patent/FR1092484A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
FR1092484D 1953-10-26 1953-10-26 Expandable Shell Anchor Device Expired FR1092484A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1092484T 1953-10-26

Publications (1)

Publication Number Publication Date
FR1092484A true FR1092484A (en) 1955-04-21

Family

ID=9616040

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1092484D Expired FR1092484A (en) 1953-10-26 1953-10-26 Expandable Shell Anchor Device

Country Status (1)

Country Link
FR (1) FR1092484A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247754A (en) * 1963-08-08 1966-04-26 Dennis W Bieser Self-drilling anchor bolt
DE1240019B (en) * 1957-08-14 1967-05-11 Chester I Williams Rock bolts for gallery ceilings, tunnels or the like.
US4883394A (en) * 1987-10-07 1989-11-28 Polyco, Inc. Cover with integral fastening means
US5039263A (en) * 1987-10-07 1991-08-13 Polyco Inc. Cover with integral fastening means

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1240019B (en) * 1957-08-14 1967-05-11 Chester I Williams Rock bolts for gallery ceilings, tunnels or the like.
US3247754A (en) * 1963-08-08 1966-04-26 Dennis W Bieser Self-drilling anchor bolt
US4883394A (en) * 1987-10-07 1989-11-28 Polyco, Inc. Cover with integral fastening means
US5039263A (en) * 1987-10-07 1991-08-13 Polyco Inc. Cover with integral fastening means

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