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US 4,080,902 AGranted
High speed igniter device
AssigneeTeledyne McCormick Selph
InventorsTerrence P. Goddard, Samuel D. Webb, Donald N. Thatcher
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AssigneeTeledyne McCormick Selph
InventorsTerrence P. Goddard, Samuel D. Webb, Donald N. Thatcher
Estimating the term…
An ignition device in the form of a linear member which has an internal linear propagation characteristic of a detonation, but a radial heat and gas evolution characteristic of a very fast deflagrating pyrotechnic material not accompanied by a shock or detonation wave. The device uses a central core containing an encapsulated explosive with a surrounding layer, or discrete layers, of a metal-clad pyrotechnic material that is significantly characterized by a class of compounds that are specific simple decahydrodecaborate salts containing the common anion B.sub.10 H.sub.10.sup.-2. The outer cladding materials themselves do not functionally ensure a radial deflagration; rather the specific pyrotechnic materials employed ensure a radial deflagration. There are taught specific relationships for components, and a necessary radial compaction.
In an igniter device comprising a centrally disposed high explosive which is linearly encapsulated, the improvement comprising a linear distribution of metal cladded pyrotechnic material about said encapsulation and in intimate contact therewith, wherein said pyrotechnic material includes an oxidizing agent combined with a simple decahydrodecaborate salt, having the common anion B.sub.10 H.sub.10.sup.-2 wherein the cation is selected from the group consisting of:
In an igniter device comprising a centrally disposed high explosive which is linearly encapsulated, the improvement comprising a linear distribution of metal cladded pyrotechnic material about said encapsulation and in intimate contact therewith, wherein said pyrotechnic material includes an oxidizing agent combined with a simple decahydrodecaborate salt, having the common anion B.sub.10 H.sub.10.sup.-2 wherein the cation is selected from the group consisting of:
In an igniter device comprising a centrally disposed high explosive which is linearly encapsulated, the improvement comprising a linear distribution of metal cladded pyrotechnic material about said encapsulation and in intimate contact therewith, wherein said pyrotechnic material includes an oxidizing agent combined with a simple decahydrodecaborate salt, having the anion B.sub.10 H.sub.10.sup.-2, wherein the cation is guanidinium, and the salt has the formula (C(NH.sub.2).sub.3).sub.2 B.sub.10 H.sub.10.
In an igniter device comprising a centrally disposed high explosive which is linearly encapsulated, the improvement comprising a linear distribution of metal cladded pyrotechnic material about said encapsulation and in intimate contact therewith, wherein said pyrotechnic material includes an oxidizing agent combined with a simple metallic decahydrodecaborate salt, having the common anion B.sub.10 H.sub.10.sup.-2, wherein the cation is selected from the group consisting of:
Dependencies are inferred from the claim text.