Industrial ammunition
AssigneeOlin Corporation
InventorsDouglas D. Olson, Jack D. Dippold, Randant D. Huelsmann
Life of this patent
Estimating the term…
Abstract
A projectileless ammunition system (20; 320) includes a metallic case (22; 322). A propellant charge (26; 326) is carried by the case and cover by an over-powder member (24; 324) in the absence of a separate projectile. The ammunition is advantageously used with an industrial ballistic tool operating so that each spent case serves as the effective projectile to be propelled by firing of the next round of ammunition.
Claims16
A ammunition in combination with a discharging apparatus for firing such ammunition wherein:
- the discharging apparatus comprises:
- a chamber for receiving the ammunition;
- a muzzle;
- and
- a barrel between the chamber and the muzzle;
- and
- the ammunition extends from a rear end to a front end and comprises:
- a metallic case that:
- extends aft-to-fore from a base at the ammunition rear end to a mouth;
- has interior and exterior surfaces;
- has a central longitudinal channel extending forward from a primer pocket portion at the base to a fore portion proximate the mouth;
- and
- has a length and diameter effective to be initially accommodated within the chamber and then, after firing, to be driven forward into the barrel and discharged therefrom by such firing of a subsequent similar ammunition;
- a cover formed of polymeric resin and extending from a rear rim to a front end at the ammunition front end and having a mass not in excess of a mass of the case and having interior and exterior surfaces;
- a primer mounted within the primer pocket;
- and
- a propellant charge confined within a volume at least partially defined by the central longitudinal channel and the cover interior surface.
Ammunition in combination with a discharging apparatus for firing such ammunition wherein:
- the discharging apparatus comprises:
- a chamber for receiving the ammunition;
- a muzzle;
- and
- a barrel between the chamber and the muzzle;
- and the ammunition extends from a rear end to a front end and comprises:
- a metallic case that extends aft-to-fore from a base at the ammunition rear end to a mouth and has interior and exterior surfaces, the metallic case having a case length and diameter effective to be initially accommodated within the chamber and then, after firing, to be driven forward into the barrel and discharged therefrom by such firing of a subsequent similar ammunition;
- a cover formed of polymeric resin and extending from a rear rim to a front end at the ammunition front end and having a cover length greater than the case length having a mass not in excess of a mass of the case and having interior and exterior surfaces;
- and
- a propellant charge confined within a volume at least partially defined by a combination of said case and said cover.
Ammunition in combination with a discharging apparatus for firing such ammunition wherein:
- the discharging apparatus comprises:
- a chamber for receiving the ammunition;
- a muzzle;
- and
- a barrel between the chamber and the muzzle;
- and the ammunition extends from a rear end to a front end and comprises:
- a metallic case that extends aft-to-fore from a base at the ammunition rear end to a mouth and has interior and exterior surfaces, the metallic case having a length and diameter effective to be initially accommodated within the chamber and then, after firing, to be driven forward into the barrel and discharged therefrom by such firing of a subsequent similar ammunition;
- a cover formed of polymeric resin and extending from a rear rim to a front end at the ammunition front end and having a mass not in excess of a mass of the case and having interior and exterior surfaces, the cover interior surface having a circumferential recess forward of the case and effective to locally weaken the cover sufficiently to permit internal pressure within the cover to sever a portion ahead of the recess from a portion behind the recess while the portion behind remains attached to the case when the ammunition is fired;
- and
- a propellant charge confined within a volume at least partially defined by a combination of said case and said cover.
In an ammunition round for use with a discharging apparatus that includes a chamber for receiving the ammunition, a muzzle and a barrel between the chamber and the muzzle, wherein the case of one round fired by the apparatus serves as a projectile expelled by ignition of the propellant charge contained within the case of the next round, the improvement wherein:
- the case is formed of a cast zinc or a cast zinc-based alloy that extends aft-to-fore from a base to a mouth and has interior and exterior surfaces;
- the primer is mounted in the case;
- and
- a member cooperates with the case to enclose the propellant charge
- the case exterior surface has a plurality of interspersed circumferential grooves and ribs, the ribs having a diameter effective to engage rifling of the barrel.
Dependencies are inferred from the claim text.