Tubular projectile
OwnerDerrick Middletoninventor
Life of this patent
Estimating the term…
Abstract
An improved tubular projectile is described wherein an effective balance has been obtained between the design parameters of reduced mass/reduced aerodynamic drag, flight characteristics, and high energy transfer upon impact. An elongate tubular projectile is provided with an axial passageway, with a central section of generally uniform diameter and flared ends. Slots are cut into the leading end to assist with expansion upon impact. The tubular projectile can be used in sabot type, ammunition, full bore shotgun ammunition, and in conventional case type rifle ammunition.
Claims15
An elongate tubular projectile with a longitudinal centre axis having a generally cylindrical body with an outer diameter D2 having a leading end and a base, said leading end being generally flat with a rounded corner, said body being radially constricted at a transverse plane closer to the base than the leading end, said body having a forward divergent body section, diverging from said transverse plane outwardly and forwardly towards the leading end, and a rearward divergent body section diverging outwardly and rearwardly from said plane towards the base, said forward divergent body section and said rearward divergent body section together extending over a majority of the overall length of said tubular projectile,
- said tubular projectile having an axial passageway having a generally conical forward throat section of decreasing cross-sectional area, a central section with a smooth straight cylindrical inner surface of constant cross-sectional area which defines an inner diameter D1 of the projectile and which extends over a majority of the overall length of said tubular projectile, and a generally conical rearward diffuser section of increasing cross-sectional area, and wherein said throat section commences at the leading end at a point substantially midway between the outer diameter and the inner diameter of said tubular projectile.
A sabot projectile assembly comprising:
- an elongate tubular projectile with a longitudinal centre axis having a generally cylindrical body with an outer diameter D2 having a leading end and a base, said leading end being generally flat with a rounded corner, said body being radially constricted at a transverse plane closer to the base than the leading end, said body having a forward divergent body section, diverging from said transverse plane outwardly and forwardly towards the leading end, and a rearward divergent body section diverging outwardly and rearwardly from said plane towards the base, said forward divergent body section and said rearward divergent body section together extending over a majority of the overall length of said tubular projectile,
- said tubular projectile having an axial passageway having a generally conical forward throat section of decreasing cross-sectional area, a central section with a smooth straight cylindrical inner surface of constant cross-sectional area which defines an inner diameter D1 of the projectile and which extends over a majority of the overall length of said tubular projectile, and a generally conical rearward diffuser section of increasing cross-sectional area, and wherein said throat section commences at the leading end at a point substantially midway between the outer diameter and the inner diameter of said tubular projectile, said sabot projectile assembly further comprising a plurality of sabot segments, said segments generally axially contacting said tubular projectile, said tubular projectile further comprising axially spaced outer surface portions defining at least two axial load receiving means, each of the said segments having axially spaced inner surface portions defining at least two axial load transfer means, said inner and outer surface portions complementary to and contacting with each other to provide for relative wedging movement therebetween, the arrangement being such that the segments will be wedged outwardly from the tubular projectile upon relative rearwardly or forwardly movement between the tubular projectile and segments.
Dependencies are inferred from the claim text.