Ammunition and explosives – Igniting devices and systems – Fuse cord
Patent
1978-12-18
1981-01-06
Brown, David H.
Ammunition and explosives
Igniting devices and systems
Fuse cord
102245, F42C 102
Patent
active
042429641
ABSTRACT:
A percussion type projectile nose fuse includes a generally conical fuse body having a cavity open only to the base thereof. Disposed within the cavity is a firing pin, a sleeve and a ball igniter. A fuse tip portion is defined by a weakened region, open to the fuse body exterior surface, which ruptures upon tip impact with a target, thereby causing at least partial rearward penetration of the tip into the cavity. Upon such tip penetration, the tip severs a flange on the firing pin by driving it against the sleeve, and propells the firing pin rearwardly along the sleeve and into engagement with the ball igniter. By forming the sleeve substantially longer than the length of the firing pin, a time delay before ignition, equal to the firing pin transit time, is provided. A forward opening recess formed in the apex of the tip, with a thin deformable wall thereabout, provides shock absorption so that accidental rupture of the weakened region does not occur during normal handling and loading of the projectile. The fuse is constructed of an aluminum alloy thereby permitting a relatively long fuse body to enhance the ballistic characteristics of an assembled projectile. The fuse being adapted for use in very high velocity projectiles by applying a thermally ablative material to the tip portion.
REFERENCES:
patent: 1975809 (1934-10-01), Teitscheid
patent: 2054510 (1936-09-01), Remondy
patent: 3143071 (1964-08-01), Arnold et al.
patent: 3177810 (1965-04-01), Kipfer
patent: 3351018 (1967-11-01), Bedall
patent: 3786754 (1974-01-01), Donahue et al.
patent: 3807307 (1974-04-01), Putscher et al.
patent: 3888182 (1975-06-01), Breed
patent: 4013013 (1977-03-01), Davis
Kazanjy Robert P.
Robinson Ernest Y.
Warren John B.
ARES, Inc.
Brown David H.
Fowler Allan R.
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