| DYNO NOBEL INC. Patent applications |
| Patent application number | Title | Published |
|---|
| 20120079956 | DETONATOR IGNITION PROTECTION CIRCUIT - An ignition circuit for a detonator is disclosed. The circuit includes an igniter, a transient voltage suppressor (TVS), an energy source and a switch, all electrically connected in series with each other. Current flow through the igniter sufficient to ignite the igniter is prevented until an ignition voltage is applied across the TVS that is equal to or greater than the breakdown voltage of the TVS. | 04-05-2012 |
| 20110247517 | METHOD AND SYSTEM FOR COMMUNICATING AND CONTROLLING ELECTRIC DETONATORS - A blasting control system includes a detonator module, and a blasting machine interface configured for serial communication between a blasting machine and the detonator module. The detonator module includes a detonator, a unique electronic ID, a switch configured to enable/disable the detonator in response to verification of the unique electronic ID, a communication device configured for communication with the blasting machine interface, and a processor responsive to instructions from the communication device. The blasting machine interface includes an I/O device, a communication device, and a processor responsive to the I/O device and the communication device. Upon verification of the unique electronic ID via communication from a user via the blasting machine interface, a state of the switch associated with the detonator is placed in an unlocked mode so as to enable activation of the associated detonator upon a fire signal from the blasting machine via the blasting machine interface. | 10-13-2011 |
| 20110083574 | LOGGER DEVICE FOR BLASTING OPERATIONS AND METHOD OF USE - An electrical interface apparatus includes two electrical input terminals, a microprocessor disposed in electrical communication with the two electrical input terminals, and a connector disposed in electrical communication with the microprocessor. The two input terminals are disposed and configured to be releasably connected to two detonator leg wires of a detonator, the microprocessor is configured to receive an input signal from the two detonator leg wires when a voltage reference is injected into the two detonator leg wires via the two electrical input terminals, and the connector is disposed and configured to be releasably connected to a handheld computer. | 04-14-2011 |
| 20080223241 | DETONATOR IGNITION PROTECTION CIRCUIT - An ignition circuit for a detonator is disclosed. The circuit includes; an igniter having a first terminal and an opposing second terminal, a first diode electrically connected in series with the igniter at the first terminal, and a second diode electrically connected in series with the igniter at the second terminal. The first and second diodes each have an anode terminal and a cathode terminal, wherein like terminals of the first and second diodes are electrically connected to the igniter, thereby defining proximal terminals proximate the igniter and distal terminals on an opposing side of each respective diode. An energy source and a switch are electrically connected in series with each other, and are electrically connected across the distal terminals. Current flow through the igniter sufficient to ignite the igniter is prevented until an ignition voltage is applied to the distal terminals that is equal to or greater than the reverse breakdown voltage of the first diode or the second diode. | 09-18-2008 |
