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US 4,393,779 AGranted
Electric detonator element
AssigneeDynamit Nobel Aktiengesellschaft
InventorsUwe Brede, Horst Penner
Life of this patent
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Abstract
An electrical detonator element including a support formed of an electrically nonconductive material with an ignition resistance and lead electrodes arranged thereon. An electrical circuit for enabling detonation is formed on the support and includes the ignition resistance and at least one electronic component each separately arranged on the support.
Claims12
An electrical detonator element comprising:
- a support of an electrically nonconductive material;
- an electric circuit provided on the support for enabling detonation, the electric circuit including an ignition resistance with lead electrodes connected thereto and at least one electronic component means, the ignition resistance and the at least one electronic component means being electrically connected in the electrical circuit and each being separately arranged on the support;
- and
- a mechanically firm insulating member contacting the support so as to at least partially cover the at least one electronic component means, the at least one electronic component means being embedded in the insulating member, the insulating member being provided with a recess in the region of the ignition resistance which exposes at least the ignition resistance, the recess extending through the insulating member and being adapted for receiving a primer charge in operative connection with the ignition resistance.
1 more element
Dependencies are inferred from the claim text.