Detnet South Africa (pty) Limited

Detnet South Africa (pty) Ltd (za)

Christopher Malcolm Birkin

Andre Louis Koekemoer

Michiel Jacobus Kruger

Richard Joseph Michna

Daniel Auguste Maurissens

Craig Charles Schlenter

Albertus Abraham Labuschagne

Elmar Lennox Muller

Johannes Petrus Kruger

Herman Van Der Walt

David Bruce Harding

Riaan Lingenfelder Van Wyk

Trevor Watt

Mark Ivan Jurras, Iii

Daniel Auguste Maurlssens

A detonator which is responsive to a shock tube event which is validated if a link is fused at a predetermined time interval after a light signal produced by the event is detected and if, at the end of a subsequent time interval, the link is still fused and the light signal is absent.

Method of validating a shock tube event

A detonator assembly method wherein a base charge is placed into a tube to abut a closed end of the tube, an electronic module is positioned inside the tube, a displacement member with a stop formation is used to move the module, against a frictional restraining force, to a location at which the stop formation abuts a rim of the tube and wherein the module is held in position by deforming the tube into engagement with the module.

Method of assembling a detonator

A detonator which includes a housing which has a passage with an inlet and an outlet and which is of reducing cross sectional area from the inlet to the outlet and wherein the inlet is configured to be exposed to an end of a shock tube, and a fusible link is located at the outlet.

Detonator sensing arrangement

A detonator which includes a tube with an open end, a shock tube, secured to a plug which is fixed to an open end of the tube, an electronic module inside the tube, the module including a substrate which carries electronic components, and sensing structure mounted to the substrate spaced from an opposing end of the shock tube.

Detonator construction

Clip for a detonator

Detonator structure

A detonator for use in a detonating system, which detonator includes discriminating and validating arrangements which sense and validate at least one characteristic of at least one parameter produced by at least one of a light, acoustic, vibratory, magnetic or electrical signal event, and an electronic timer which executes a timing interval in response thereto.

Detonator

Detonator module

Detonator module with a clip formation

Detonator module with a friction lock structure

Detonator module with an overmould formation

Detonator module with retention formations

A method of implementing a blasting system wherein positional information relating to a blast site is generated by a device which inputs the information to a processor which generates information pertaining to the location of each potential borehole at the site and that information is used by the device to indicate the location of each borehole to an operator.

Blasting system control

Growing community of inventors

Centurion, South Africa

Christopher Malcolm Birkin