EP 0020270 B1 19830330 - DEVICE FOR PREPARING AND SETTING BONDING CHARGES
Title (en)
DEVICE FOR PREPARING AND SETTING BONDING CHARGES
Publication
Application
Priority
FR 7914082 A 19790601
Abstract (en)
[origin: US4358227A] The invention relates to a device for the preparation and injection of sealing cement for bolts in propping gallery roofs and walls in mines, quarries or tunnels. The device of the invention comprises a flexible pouch contained in a rigid housing which is connected to a liquid supply system and an injection nozzle that is double-walled along its entire length, the inner nozzle receiving pulverulent cement from the flexible pouch and the outer ring of the nozzle being supplied with water. Thus, the cement and water are separately introduced into a bore for the bolts and the mixing process takes place in the bore.
IPC 1-7
IPC 8 full level
E21D 21/00 (2006.01); B05B 7/14 (2006.01); B05B 7/24 (2006.01); E04G 21/04 (2006.01); E21D 20/00 (2006.01); E21D 20/02 (2006.01)
CPC (source: EP US)
B05B 7/1431 (2013.01 - EP US); B05B 7/1495 (2013.01 - EP US); E04G 21/04 (2013.01 - EP US); E21D 20/021 (2013.01 - EP US); E21D 20/028 (2013.01 - EP US); E04G 2021/049 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0020270 A1 19801210; EP 0020270 B1 19830330; AT E2910 T1 19830415; DE 3062514 D1 19830505; FR 2457721 A1 19801226; FR 2457721 B1 19820521; JP S55161198 A 19801215; US 4358227 A 19821109; ZA 803193 B 19810527
DOCDB simple family (application)
EP 80400761 A 19800529; AT 80400761 T 19800529; DE 3062514 T 19800529; FR 7914082 A 19790601; JP 7411680 A 19800602; US 15523680 A 19800602; ZA 803193 A 19800528