Closure disk assembly for tracer projectile
AssigneeGeneral Dynamics Ordnance and Tactical Systems - Canada, Inc.
InventorEric Lafortune
Life of this patent
Estimating the term…
Abstract
The tracer projectile having a closure disk assembly is described. The tracer projectile includes a projectile base with a tracer cavity formed therein. A pyrotechnic charge is pressed into the tracer cavity and is ignitable by burning propellant such that a trajectory of the projectile is visible when fired. A closure disk assembly covers and seals the tracer cavity. A crown of the closure disk assembly is supported on a ring flange formed by an annular groove in the projectile base. A sidewall of the closure disk assembly surrounds the ring flange. A retaining element is disposed in the annular groove and engages a rim of the closure disk assembly for securing the closure disk assembly to the projectile base over the tracer cavity.
Claims20
A tracer projectile comprising;
- a projectile having a tracer cavity formed into a projectile base and an annular groove formed into a rear face of the projectile base to provide a ring flange surrounding the tracer cavity;
- a pyrotechnic charge pressed into the tracer cavity, wherein the pyrotechnic charge is ignitable by burning propellant such that a trajectory of the projectile is visible when fired;
- a closure disk assembly having a thin-walled crown covering the tracer cavity, a sidewall extending along an inner surface of the annular groove and a rim extending along an inner face of the annular groove, wherein the ring flange supports the crown on the projectile base such that the burning propellant ruptures the crown when the projectile is fired;
- and
- a retaining element disposed in the annular groove and engaging the rim for securing the closure disk assembly to the projectile base over the tracer cavity.
A tracer projectile comprising;
- a projectile body having a forward section supporting an ogive, a mid-section supporting a driving band and a base section having a tracer cavity formed therein and an annular groove formed into a rear face of the base section to provide a ring flange surrounding the tracer cavity;
- a pyrotechnic charge pressed into the tracer cavity, wherein the pyrotechnic charge is ignitable by burning propellant such that a trajectory of the projectile is visible when fired;
- a closure disk assembly having a thin-walled crown covering the tracer cavity, a sidewall extending along an inner surface of the annular groove and a rim extending along an inner face of the annular groove, wherein the ring flange supports the crown on the base section such that the burning propellant ruptures the crown when the projectile is fired;
- and
- a retaining element disposed in the annular groove and engaging the rim for securing the closure disk assembly to the base section over the tracer cavity.
Dependencies are inferred from the claim text.