Ammunition and explosives – Igniting devices and systems
Patent
1975-10-20
1977-03-15
Brown, David H.
Ammunition and explosives
Igniting devices and systems
89 1C, 102 70R, 166 551, 175 46, F42C 1500
Patent
active
040118150
ABSTRACT:
In the representative embodiments of the safe-handling arming apparatus of the present invention disclosed herein, a spring-biased indicator is cooperatively arranged on an enclosed-carrier perforating gun for visually representing whether an obscured or secluded detonator enclosed within the carrier is either in an ineffectual or "safe" status or is in an effective or "armed" status in readiness for detonating one or more shaped explosive charges in the gun. In one embodiment of the new and improved arming apparatus of the present invention, a unique arrangement is provided for releasably retaining a selectively-movable detonator in either of two predetermined operating locations. In another embodiment of the invention, the detonator is instead fixed and isolated by a selectively-movable barrier whose presence or absence is shown by the indicator.
REFERENCES:
patent: 2641185 (1953-06-01), Lockett
patent: 2655993 (1953-10-01), Spencer
patent: 2883932 (1959-04-01), Caldwell
patent: 2924173 (1960-02-01), Robertson
patent: 2925775 (1960-02-01), McKee
patent: 3052784 (1962-09-01), Ousley
patent: 3157119 (1964-11-01), Porter
patent: 3366179 (1968-01-01), Kinley et al.
patent: 3430568 (1969-03-01), Amster
Archambeau, Jr. Ernest R.
Brown David H.
Moore Stewart F.
Schlumberger Technology Corporation
Sherman William R.
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