US 3,937,124 A · Settable warhead burst range selector

Abstract

A settable warhead burst range selector permits the user of a weapon to rdly change a chambered flechette ejecting projectile from a muzzle-burst mode to an extended-range mode. A slide containing a pyrotechnic delay is held in a neutral, muzzle burst mode, by a slide positioning locking plate. The pyrotechnic slide has flash ports along its length which are designed to cause flechette expulsion in either the muzzle-burst or the extended-range mode. The range mode is selected by twisting a knurled sleeve into a specific camming position. The sleeve is connected to a striker pin which projects into the weapon chamber area. The striker pin is capable of striking and dimpling the round in the chamber. A dimpled round will cause the slide positioning locking plate to detent the pyrotechnic slide so that the round will be in its extendedrange mode. An undimpled round will permit the pyrotechnic slide to move so that the round is in its muzzle-burst mode.

Claims4

Dependent claims

A settable warhead burst range selector for a flechette dispersing round which comprises:

a gun barrel having a chamber wall with a transversely positioned pin bore therein, said pin bore having a first gas seal therein;
a bulkhead section transversely positioned in the wall of said round intermediate a propellant chamber and a payload chamber, an axially positioned slide boss which protrudes from the rear side of said bulkhead into said propellant chamber, said boss having an axial bore and a second gas seal therein, an annularly shaped charge cavity positioned in the front side of said bulkhead, and at least one bore intermediate said charge cavity and said axial bore and communicating therewith;
an expulsion charge positioned in said charge cavity;
delay means for igniting said expulsion charge;
and
detent means for setting said delay so that said round is set in an extended-range mode or in a muzzle-burst mode.

3 more elements

Dependencies are inferred from the claim text.

Settable warhead burst range selector

Life of this patent

Settable warhead burst range selector

Life of this patent

Abstract

Claims4