Ammunition and explosives – Igniting devices and systems – Accidental fuse ignition prevention means
Patent
1980-04-28
1981-11-10
Nelson, Peter A.
Ammunition and explosives
Igniting devices and systems
Accidental fuse ignition prevention means
F42B 310
Patent
active
042991676
ABSTRACT:
A surface delay device which exhibits good precision in delay timing when it is ignited from the side output of a low-energy detonating cord (LEDC) trunkline and end-initiates an LEDC trunkline or downline has a percussion-sensitive ignition charge wedged between the integrally closed end of a metal shell and the end of a delay capsule, which houses the delay and priming charges. An orifice in the end of the delay capsule between the ignition and delay charges is kept free of the ignition charge, e.g., by providing an axial recess in the end of the shell extending at least as far as the orifice. In the field the end of a cord is fitted into a well which is seated in the main detonating charge, adapted to be initiated by the priming charge; and another cord is positioned transversely against the ignition end of the shell.
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patent: 2652775 (1953-09-01), Swanson
patent: 3106892 (1963-10-01), Miller
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patent: 3709149 (1973-01-01), Driscoll
patent: 3776135 (1973-12-01), Zebree
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patent: 4232606 (1980-11-01), Bryan
patent: 4248152 (1981-02-01), Bryan
Ascani D. C.
E. I. Du Pont de Nemours & Co.
Nelson Peter A.
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