EP 3997308 A1 20220518 - NOZZLE, SYSTEM AND METHOD FOR SECURING A BOLT IN A ROCK HOLE
Title (en)
NOZZLE, SYSTEM AND METHOD FOR SECURING A BOLT IN A ROCK HOLE
Title (de)
DÜSE, SYSTEM UND VERFAHREN ZUM BEFESTIGEN EINES BOLZENS IN EINEM GESTEINSLOCH
Title (fr)
BUSE, SYSTÈME ET PROCÉDÉ DE FIXATION D'UN BOULON DANS UN TROU DE ROCHE
Publication
Application
Priority
- SE 1950866 A 20190708
- SE 2020050708 W 20200703
Abstract (en)
[origin: WO2021006802A1] A nozzle (5) for injecting a multi-component mixture into a rock hole, wherein the mixture is adapted for securing a bolt in the rock hole. The nozzle (5) comprises first and second channels (31, 33) adapted to receive a first respective second component of the multi- component mixture, and a third channel (55) adapted to receive a blocking agent (S). The third channel (55) is connected to the first channel (31). Furthermore, the nozzle (5) comprises a mixing member (23) to mix the first and the second component prior to injecting the mixture into the rock hole. The nozzle (5) further comprises an outlet (21) adapted to inject the mixture of the first and the second component directly into the rock hole. A system (1) for securing a bolt in a rock hole and a method for securing a bolt in a rock hole are also described.
IPC 8 full level
E21D 20/02 (2006.01)
CPC (source: CN EP SE)
E21D 20/003 (2013.01 - CN); E21D 20/025 (2013.01 - CN EP SE); E21D 20/028 (2013.01 - CN EP SE); E21D 21/00 (2013.01 - SE)
Citation (search report)
See references of WO 2021006802A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2021006802 A1 20210114; AU 2020309463 A1 20211202; CA 3142250 A1 20210114; CN 114096736 A 20220225; EP 3997308 A1 20220518; SE 1950866 A1 20210109; SE 543524 C2 20210316
DOCDB simple family (application)
SE 2020050708 W 20200703; AU 2020309463 A 20200703; CA 3142250 A 20200703; CN 202080045906 A 20200703; EP 20739790 A 20200703; SE 1950866 A 20190708