Abstract: 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.

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.

Abstract: 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.

Abstract: A detonator which includes a tubular body within which is located a detonator assembly which comprise a container (20) which houses a set explosive composition element in which is embedded part of a PCB (72, 76) which carries an ignition element (66).

Abstract: A detonator (14) has a printed circuit board (18) with conductive contact pads (26) which are electrically connected to conductors (32, 34) by means of a compression-type fitting. The compression-type fitting includes a cover (40), a seal (46) and a locking member (54) through which the electrical conductors in the form of a cable (12) are slidably threaded in the stated order. The detonator (14) has at its trailing end (24) a wedge-shaped part (28) having a serrated surface (28A). Locking member (54) has a tapered cavity (56) having a serrated surface (56A). Cover (40) is slid along cable (12) to force locking member (54) into locking engagement with wedge-shaped part (28) to hold conductors (32, 34) in contact with contact pads (26).

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.

Abstract: A detonator assembly (10) which includes a housing (16), an explosive (20) in the housing (16), an initiating element (32) exposed to the explosive (20), a circuit for controlling operation of the initiating element (32), and a communication arrangement which can establish communication between the circuit and an external controller (60) at least at one optical frequency.

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.

Abstract: A detonator which includes a tubular body within which is located a detonator assembly which comprise a container (20) which houses a set explosive composition element in which is embedded part of a PCB (72, 76) which carries an ignition element (66).

Abstract: A detonator assembly (10) which includes a housing (16), an explosive (20) in the housing (16), an initiating element (32) exposed to the explosive (20), a circuit for controlling operation of the initiating element (32), and a communication arrangement which can establish communication between the circuit and an external controller (60) at least at one optical frequency.

Abstract: A detonator (120) which has a battery (136) which is movable by a pressure wave from a shock tube (158) to a position at which the battery is placed in electrical contact with a circuit (130) which controls firing of an ignition element (128).

Abstract: A detonator which has a printed circuit board with contact pads which are electrically connected to conductors by means of a compression-type fitting.

Abstract: A detonator (120) which has a battery (136) which is movable by a pressure wave from a shock tube (158) to a position at which the battery is placed in electrical contact with a circuit (130) which controls firing of an ignition element (128).

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.