Blast initiation device
AssigneeOrica Explosives Technology Pty Ltd
InventorsSek K. Chan, Raymond Carriere, John T. Reid
Life of this patent
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Abstract
A detonator device and assembly for the initiating a plurality of signal transmission lines with a pressure impulse. The detonator device comprising a detonator casing having a signal receiving end and a firing end. The firing end of the detonator device being substantially shaped to conform with the pressure impulse initiation therein. The firing end having a contact wall of substantially uniform thickness for contacting a plurality of signal transmission lines in a compatible connector element and transmitting a pressure impulse thereto.
Claims24
A detonator for initiating a plurality of signal transmission lines with a pressure impulse, comprising:
- a detonator casing having a signal receiving end and a firing end, said firing end having a wall of substantially uniform thickness provided with a convex outer surface for contacting a plurality of signal transmission lines and a concave inner surface, said concave inner surface defining an inner region for holding an explosive composition;
- an explosive composition confined within said inner region;
- and
- means for conveying a firing signal received at said firing end to said explosive composition to initiate detonation of said explosive composition.
A detonator assembly for initiating a plurality of signal transmission lines with a pressure impulse, said detonator assembly comprising:
- a detonator having a signal receiving end and a firing end, said firing end having a wall of substantially uniform thickness provided with a convex outer surface for contacting a plurality of signal transmission lines and a concave inner surface, said concave inner surface defining an inner region for holding an explosive composition;
- an explosive composition confined within aid inner region;
- and means for conveying a firing signal received at said firing end to said explosive composition to initiate detonation of said explosive composition;
- and
- a connector element for receiving said detonator and said plurality of signal transmission lines in impulse transmission contact;
- said connector element comprising a conduit having opposing open ends for receiving said detonator;
- and a confining wall extending from one of said opposing ends to define a transverse slot for receiving said plurality of transmission lines therethrough;
- wherein when said detonator is positioned within said conduit said convex outer surface extends into said transverse slot to contact said plurality of signal transmission lines.
A connector element for connecting a detonator having an outer convex surface with a plurality of signal transmission lines, for transmission of a pressure impulse from said concave outer surface to said plurality of signal transmission lines, said connector element comprising:
- a conduit extending through a body portion of said connector element;
- said conduit having opposing open ends;
- and
- a confining wall extending from one of said opposing ends and shaped to define a substantially rounded transverse slot;
- said transverse slot adapted to receive said plurality of signal transmission lines;
- and said conduit adapted to receive said detonator such that said outer convex surface of said detonator extends into said transverse slot to contact said plurality of signal transmission lines;
- wherein when said outer convex surface is positioned in contact with said plurality of signal transmission lines within said transverse slot, each of said plurality of signal transmission lines is uniformly positioned to receive a pressure impulse from said detonator.
Dependencies are inferred from the claim text.