Detonator including a sensing arrangement
AssigneeDetnet South Africa (Pty) Ltd
InventorsDavid Bruce Harding, Albertus Abraham Labuschagne, Andre Louis Koekemoer, Christopher Malcolm Birkin, Craig Charles Schlenter
Life of this patent
Estimating the term…
Abstract
A timing module for use in a detonating system which includes discriminating and validating arrangements which sense and validate at least one characteristic of at least one parameter produced by at least one shock tube event and an electronic timer which executes a timing interval in response thereto.
Claims5
A detonator which includes a sensing arrangement which, in response to sensing a shock tube event, produces an output signal, a programmable timer which, in response to the output signal, completes execution of a predetermined timing interval, an initiating element which is fired after completion of the timing interval, and a communication unit which can communicate with an external controller and thereby vary the duration of the predetermined timing interval.
A detonator which includes a sensing arrangement which senses at least one characteristic of at least one parameter generated by a shock tube event, a programmable timer which is operable in response to the sensing arrangement to complete execution of a timing interval of a predetermined duration, and a memory in which data, selected from the following, is stored:
- timing data, detonator trigger parameters, detonator manufacturing and tracking information, detonator identification data.
A detonator which includes a sensing arrangement which senses at least one characteristic of at least one parameter generated by a shock tube event, a timer which is operable to complete execution of a timing interval of a predetermined duration in response to the sensing arrangement, a first energy source, an initiating element, a second energy source, a power management circuit which transfers electrical energy, derived from the second energy source, into the first energy source at a voltage which is higher than a voltage which is available from the second energy source, and a switching arrangement which, in response to a timing signal produced at an end of the timing interval, is operable to connect the first energy source to the initiating element thereby to cause firing of the initiating element.
A detonator which includes a sensing arrangement which senses at least one characteristic of at least one parameter generated by a shock tube event, a timer which is operable to complete execution of a timing interval of a predetermined duration in response to the sensing arrangement, an energy source, an initiating element, a switching arrangement which, in response to a timing signal produced by the timer, is operable to connect the energy source to the initiating element thereby to cause firing of the initiating element, and a circuit which discharges energy from the energy source if the timing signal is not produced by the timer.
Dependencies are inferred from the claim text.