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US 4,220,087 AGranted
Linear ignition fuse
AssigneeExplosive Technology, Inc.
InventorPhilip L. Posson
Life of this patent
Estimating the term…
Abstract
Non-detonative linear ignitor fuse for substantially instantaneous ignition of materials distributed along the exterior length of the fuse. The fuse includes a core of non-detonative, ignitive material encased within an imperforate frangible sheath which is ruptured by combustion of the core material. A gas channel extends longitudinally of the fuse adjacent to the ignitive material. As the ignitive reaction travels along the length of the fuse, the sheath is shattered, and incandescent reaction products are spewed from the fuse in a generally radial direction.
Claims13
In an ignition fuse:
- an elongated core of ignitive, non-detonative material comprising a mixture of particulate fuel having a high heat of combusion and an oxidant, an imperforate frangible sheath encasing the core, and a longitudinally extending gas channel adjacent to the ignitive material of the core for supporting an ignitive reaction which travels along the fuse at a supersonic rate, shattering the sheath and spewing incandescent reaction products from the fuse in a generally radial direction.
In a linear ignition fuse:
- an elongated frangible tubular sheath, a core within the sheath comprising a longitudinally extending strand coated with a non-explosive ignitive material having a high heat of combusion, and a longitudinally extending gas channel adjacent to the ignitive material for supporting an ignitive reaction which travels along the fuse at a supersonic rate, shattering the sheath and spewing incandescent reaction products from the fuse in a generally radial direction.
Dependencies are inferred from the claim text.