Dual redundancy system for electronic detonators
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United States of America Patent
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-
Sep 5, 2006
Grant Date -
Oct 16, 2003
app pub date -
May 18, 2001
filing date -
Jun 2, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A detonator assembly (10) comprising a housing (12) disclosed and claimed. The assembly comprises an main circuit (11) comprising an electrically operable fuse (16) located in the housing. The assembly further comprises at least a first redundancy circuit (13) wherein at least one element of the main circuit is duplicated (18 for 16) also located in the housing. The invention also includes within its scope an initiation system (42) comprising at least one level of redundancy which may be in one or more or all of a blast controller (24), a harness (40) and detonator assemblies 10.1 to 10.n forming part of the system.
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