Ammunition and explosives – Igniting devices and systems – Initiating devices
Patent
1995-07-20
1996-11-05
Carone, Michael J.
Ammunition and explosives
Igniting devices and systems
Initiating devices
89 115, 166297, 175 456, C06C 500, E21B 700, E21B 2902
Patent
active
055719864
ABSTRACT:
A method and apparatus of activating electric wireline firing systems in which a firing pin is restrained against movement toward a detonator until application of sufficient voltage to the apparatus. The firing pin is not permitted to move immediately upon application of voltage to the apparatus thereby providing a period during which voltage may be interrupted to prevent detonation of the system. The requisite voltage which must be applied to the apparatus is relatively high thereby ensuring against premature detonation of the system due to high radio frequencies, stray voltages or other electrical influences.
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Andrich Lyle W.
Smith William D.
Snider Philip M.
Wesson David S.
Carone Michael J.
Ebel Jack E.
Hummel Jack L.
Marathon Oil Company
Wesson Theresa M.
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