Other

Davey Bickford

Davey Bickford Usa, Inc.

Advanced Initiation Systems, Inc.

Raphael Trousselle

Claude Pathe

Franck Guyon

Robert McClure

Arthur Poudre

Philippe Clot

Eric Fivaz

Robert Mcclure

A system for programming and lighting electronic detonators () each having an identifier (ID) associated therewith, includes: a programming unit () arranged to determine the identifiers of the detonators () and to associate the detonators individually, in memory, with a lighting time delay (T) in order to form a blasting pattern (PT); a blasting unit () arranged to recover the blasting pattern (PT) from the memory () of the programming unit (), and to control a blasting sequence of the detonators according to the recovered blasting pattern; and the programming unit () includes: a passive RFID tag () provided with a chip () acting as a memory for storing the blasting pattern (PT), and a radiofrequency reader () arranged such as to read/write passive tags. A corresponding method is also described.

System for programming and lighting electronic detonators and associated method

A pyroelectronic detonator () includes an electronic circuit for at least controlling the detonator ignition by supplying igniting current to an electrothermal bridge () and at least one electronic shunting element () directly connected to the bridge (), wherein the shunting element () is controllable between the closed low-electric resistance state of the shunt and the open high electric resistance state thereof and the electronic circuit () controls the states. The shunt is constructed in such a way that it can be monostable and bistable.

Pyroelectronic detonator provided with a circuit for shunting an electrothermal bridge

A blasting system facilitates the actuation of a plurality of programmable detonators according to a desired blasting pattern, to cause the discharge of a plurality of associated charges, by downloading to the detonators blasting information that can be automatically determined by a portable handheld unit that incorporates a positional detecting device, such as a GPS device. The blasting information for any given detonator can be determined by the handheld unit as a function of the distance and the direction of the movement of the unit to the detonator, and/or by the actual GPS location while at the site of the detonator. This automatic determination of blasting information, and particularly the delay times, based on the movement of the unit to the detonator, eliminates error prone human calculations of the delay times needed for multiple detonators at a blasting site. This simplifies the operations and procedures needed for achieving a desired blasting pattern, without sacrificing safety or quality.

Positional blasting system

A control method for detonators (,) fitted with an electronic ignition module (,). Each module (,) is associated with specific parameters including at least one identification parameter and one explosion delay time, and includes a firing capacitor and a rudimentary internal clock. The modules (,) are capable of establishing a dialogue with a firing control unit (,) fitted with a reference time basis. The identification parameters are stored in the modules using a programming unit (,); the specific parameters are stored in the firing control unit (,); for each successive module, its internal clock is calibrated using the firing control unit and the associated delay time is sent to the module; the modules are ordered to load the firing capacitors; and a firing order is sent to the modules using the firing control unit, triggering off eventual resetting of the internal clocks as well as a firing sequence.

Method of detonator control with electronic ignition module, coded blast controlling unit and ignition module for its implementation

Vehicle safety device

Electro-pyrotechnic initiator, method for making same, and vehicle

Growing community of inventors

Auxerre, France

Raphael Trousselle