公开(公告)号：US20250012552A1

公开(公告)日：2025-01-09

申请号：US18713937

申请日：2022-09-26

Applicant: DETNET SOUTH AFRICA (PTY) LTD

Inventor： Marius Christo Botha ,  Abraham Johannes LIEBENBERG

IPC: F42D1/22

Abstract: A device which is used to position a detonator assembly in a borehole. The device has a housing with an open mouth into which one end of the detonator assembly is inserted, formations on the housing which then engage with the detonator assembly, and flexible elements which extend from the housing and which are configured, in use, to engage with a wall of a borehole into which the device and the detonator assembly are inserted.

公开(公告)号：US20240393094A1

公开(公告)日：2024-11-28

申请号：US18694180

申请日：2022-09-08

Applicant: DETNET SOUTH AFRICA (PTY) LTD

Inventor： Michiel Jacobus KRUGER

IPC: F42D1/05 ,  F42B3/22 ,  F42D1/22

Abstract: A detonator assembly which includes a holder, a flexible elongate element which is engaged with the holder, a detonator connected to the element, an energy storage device on the holder and a coil arrangement for charging the energy storage device when the coil arrangement is coupled to a variable electromagnetic field.

公开(公告)号：US20230392913A1

公开(公告)日：2023-12-07

申请号：US18250133

申请日：2021-10-20

Applicant: LUOSSAVAARA KIIRUNAVAARA AB

Inventor： Nikolaos PETROPOULOS

IPC: F42D1/10 ,  F42D1/22 ,  F42B3/087

CPC classification number: F42D1/10 ,  F42D1/22 ,  F42B3/087

Abstract: The present invention concerns an explosive material charging device (1) and a method of positioning the explosive material charging device (1) in a borehole (3). The explosive material charging device (1) comprises a top anchor unit (5) and a bottom anchor unit (7) each configured to engage the borehole wall (8), an expandable tube member (11) arranged between the top anchor unit (5) and the bottom anchor unit (7) and configured to be charged with explosive material (40), the bottom anchor unit (7) comprises a backflow prevention valve device (13) configured to prevent the explosive material (40) to flow out from the expandable tube member (11), wherein the backflow prevention valve device (13) is openable for permitting a charging hose (15) to enter the expandable tube member (11) for reaching the interior of the top anchor unit (5),

公开(公告)号：US11835329B2

公开(公告)日：2023-12-05

申请号：US17982073

申请日：2022-11-07

Applicant: Olitek Pty Ltd

Inventor： James Thomas Oliver ,  Anthony James Sprague

IPC: F42D1/22 ,  E21C37/00 ,  E21C41/30

CPC classification number: F42D1/22 ,  E21C37/00 ,  E21C41/30

Abstract: An explosives delivery vehicle for delivering a booster for initiating an explosion of an explosive material in a hole in a floor of a mine pit to an operative depth in the hole. The vehicle comprises a storage assembly for storing a plurality of the boosters, a booster loading assembly for (i) supporting the booster in a delivery position above the hole and (ii) moving the booster downwardly into the hole and inserting the booster at an operative depth in the hole; and a delivery assembly for transporting the booster from the storage assembly to the loading assembly.

公开(公告)号：US20230280143A1

公开(公告)日：2023-09-07

申请号：US18176866

申请日：2023-03-01

Applicant: Dyno Nobel Asia Pacific Pty Limited

Inventor： Paul Terry

IPC: F42D1/22 ,  F42D1/10

CPC classification number: F42D1/22 ,  F42D1/10

Abstract: The present disclosure describes systems and methods for delivering a primer to an operative depth for initiating an explosion of an explosive material in a blasthole. Systems described herein can include a cap structure providing access into the hole and a separable detonator subassembly that can be deployed to convey a detonator to a priming position. Methods of priming a blasthole can include placing such a system on a blasthole collar and deploying the detonator subassembly in conjunction with loading the blasthole with explosive material.

公开(公告)号：US20230184528A1

公开(公告)日：2023-06-15

申请号：US18106040

申请日：2023-02-06

Applicant: AQUIRIAN TECHNOLOGY PTY LTD

Inventor： Gregory PATCHING

IPC: F42D1/22 ,  F42D3/04

CPC classification number: F42D1/22 ,  F42D3/04

Abstract: The invention provides an apparatus and method for preventing surrounding loose rock fragments from falling or collapsing into a blast hole. The apparatus includes a flexible sheet including a pair of spaced apart longitudinally extending side edges and a pair of spaced apart laterally extending end edges. The sheet has a curved form defining a longitudinal passage extending between openings at longitudinally opposite ends, one end of the curved sheet being insertable into the open end of a blast hole whereby the curved sheet closely faces an internal surface of the blast hole and forms a barrier preventing surrounding loose rock fragments from falling or collapsing into the open end of the blast hole. The invention also provides a bench blasting method and a deployment device for deploying the apparatus into a blast hole.

公开(公告)号：US11598620B2

公开(公告)日：2023-03-07

申请号：US17499088

申请日：2021-10-12

Applicant: TBS MINING SOLUTIONS PTY LTD

Inventor： Gregory Patching

IPC: F42D1/22 ,  F42D3/04

Abstract: The invention provides an apparatus and method for preventing surrounding loose rock fragments from falling or collapsing into a blast hole. The apparatus includes a flexible sheet including a pair of spaced apart longitudinally extending side edges and a pair of spaced apart laterally extending end edges. The sheet has a curved form defining a longitudinal passage extending between openings at longitudinally opposite ends, one end of the curved sheet being insertable into the open end of a blast hole whereby the curved sheet closely faces an internal surface of the blast hole and forms a barrier preventing surrounding loose rock fragments from falling or collapsing into the open end of the blast hole. The invention also provides a bench blasting method and a deployment device for deploying the apparatus into a blast hole.

公开(公告)号：US11566500B2

公开(公告)日：2023-01-31

申请号：US17235616

申请日：2021-04-20

Applicant: Schlumberger Technology Corporation

Inventor： Ashutosh Gupta ,  Stephen D'Mello ,  Andrew Prisbell ,  Hari Prakash Kalakonda ,  Rucha Deshmukh

IPC: E21B43/117 ,  E21B43/119 ,  F42D1/22

Abstract: The present disclosure provides a loading tube to be used in a perforating gun. The loading tube is capable of securely engaging with shaped charges while maintaining the structural integrity and being made by injection molding.

公开(公告)号：US20220412713A1

公开(公告)日：2022-12-29

申请号：US17771411

申请日：2020-10-23

Applicant: Orica International Pte Ltd

Inventor： Francisco SANCHEZ ,  Tom MANNEY ,  Chad CHAFFIN

IPC: F42D1/10 ,  F42B3/103 ,  F42B39/30 ,  F42D1/22 ,  F42D1/045

Abstract: Disclosed is a magazine apparatus including a first magazine and a second magazine. The first magazine is configured for holding, carrying and dispensing first initiation device components. The second magazine is configured for holding, carrying and dispensing second initiation device components. The first magazine and the second magazine are configured to dispense the first initiation device components and the second initiation device components in a corresponding manner such that a dispensed one of the first initiation device components and a correspondingly dispensed one of the second initiation device components can be assembled together to form a structurally complete, unified initiation device for loading into a borehole.

公开(公告)号：US11453569B2

公开(公告)日：2022-09-27

申请号：US16092536

申请日：2017-04-07

Applicant: DETNET SOUTH AFRICA (PTY) LTD

Inventor： Elmar Lennox Muller ,  Michiel Jacobus Kruger ,  Pierre De Vos Mynhardt

IPC: B65H75/44 ,  B65H49/32 ,  F42D1/22 ,  F42D1/04

Abstract: A spool for use in a blasting system which carries a coiled signal-transmitting conductor which is connected at one end to a detonator and at an opposed end to a connector.