Electric detonator with static electricity suppression
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United States of America Patent
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-
May 24, 1988
Grant Date -
N/A
app pub date -
Sep 26, 1986
filing date -
Sep 26, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A static electricity protection system for use in electric detonators having an electrically conductive housing, and an ignition system contained in the housing. The static electricity protection system includes a pair of electrical conductors for carrying electrical current to the ignition system, with the conductors being generally disposed apart from one another and from the housing walls. A portion of each conductor is positioned adjacent to but not in contact with the housing and adjacent to but not in contact with a portion of the other conductor. This enables the discharge of static charge accumulation on either conductor to the housing with the result that ionization of air takes place to allow further discharge from the other conductor to the housing. In this way, the ignition system is protected from static electricity.
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