CA2092150A1 - Systeme de soutenement de toit de galerie de mine - Google Patents

Systeme de soutenement de toit de galerie de mine

Info

Publication number
CA2092150A1
CA2092150A1 CA 2092150 CA2092150A CA2092150A1 CA 2092150 A1 CA2092150 A1 CA 2092150A1 CA 2092150 CA2092150 CA 2092150 CA 2092150 A CA2092150 A CA 2092150A CA 2092150 A1 CA2092150 A1 CA 2092150A1
Authority
CA
Canada
Prior art keywords
connector
support system
roof
roof support
mine roof
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.)
Granted
Application number
CA 2092150
Other languages
English (en)
Other versions
CA2092150C (fr
Inventor
Lawrence E. Long
Klaus M. Langeneckert
Gero Herrmann
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.)
Walter Bau AG
Original Assignee
Dyckerhoff and Widmann 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
Priority claimed from US07/928,496 external-priority patent/US5238329A/en
Application filed by Dyckerhoff and Widmann AG filed Critical Dyckerhoff and Widmann AG
Publication of CA2092150A1 publication Critical patent/CA2092150A1/fr
Application granted granted Critical
Publication of CA2092150C publication Critical patent/CA2092150C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
CA 2092150 1992-08-11 1993-03-22 Systeme de soutenement de toit de galerie de mine Expired - Fee Related CA2092150C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/928,496 1992-08-11
US07/928,496 US5238329A (en) 1991-08-23 1992-08-11 Mine roof support system

Publications (2)

Publication Number Publication Date
CA2092150A1 true CA2092150A1 (fr) 1994-02-12
CA2092150C CA2092150C (fr) 1996-09-10

Family

ID=25456317

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2092150 Expired - Fee Related CA2092150C (fr) 1992-08-11 1993-03-22 Systeme de soutenement de toit de galerie de mine

Country Status (1)

Country Link
CA (1) CA2092150C (fr)

Also Published As

Publication number Publication date
CA2092150C (fr) 1996-09-10

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed