Ammunition and explosives – Igniting devices and systems – Initiating devices
Reexamination Certificate
2003-12-01
2010-02-23
Bergin, James S (Department: 3641)
Ammunition and explosives
Igniting devices and systems
Initiating devices
C102S275600, C102S322000, C102S331000
Reexamination Certificate
active
07665401
ABSTRACT:
A shock tube initiator (STI) for allowing the remote and/or manual initiation of at least one shock tube, typically two shock tubes is disclosed. The STI consists of: a) at least one coupling8,connected to a shock tube containing a shot shell primer that upon firing initiates burning of the shock tube, b) a cockable mechanical firing mechanism7adjacent to the coupling8wherein the mechanical firing mechanism7is adapted to strike respective firing pins9within the couplings, c) a safety mechanism15adapted to allow the mechanical firing mechanism7to ignite said explosive charge only when the safety mechanism15is moved from a safe mode position to an armed position, d) a rotary solenoid valve24,electrically connected to and energised by a remote controlled operating system, and e) an actuator10positioned between and engageable with the rotary electro-mechanical energising means24and the firing mechanism7and wherein said actuator10is adapted to be actuated either by the rotary solenoid valve24,when energised, or manually manipulated (13) to allow the cockable mechanical firing mechanism7when cocked, to ignite said shell primer.
REFERENCES:
patent: 4381711 (1983-05-01), Lawrence
patent: 4962708 (1990-10-01), Snyder et al.
patent: 6581519 (2003-06-01), Adams
patent: 7451700 (2008-11-01), Land
patent: 0020821 (2000-04-01), None
patent: WO 2005054073 (2005-06-01), None
Ballantine Roger
Hamilton Dave Norman
Hornbrook Anthony Paul
Moore Ian
Bergin James S
Brooks & Kushman P.C.
Mas Zengrange (NZ) Ltd
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