초록 ▼

A cased telescoped ammunition round includes a propellant charge disposed in a tubular case. The case is composed of a skin tube and end caps on opposite ends of the tube. The case defines a chamber that contains the propellant charge. The charge has an axial bore containing a control tube at least

A cased telescoped ammunition round includes a propellant charge disposed in a tubular case. The case is composed of a skin tube and end caps on opposite ends of the tube. The case defines a chamber that contains the propellant charge. The charge has an axial bore containing a control tube at least at an aft portion of the bore. The control tube is attached at least at its aft end to the aft one of the case end caps. A projectile is housed within a forward portion of the axial bore of the propellant charge, and a primer is disposed within an aft portion of the control tube. The primer is actuatable for igniting the propellant charge to cause firing of the projectile forwardly from the case. Features are provides for locking the end caps onto the opposite ends of the skin tube of the round case and for permitting elongation of the skin tube in response to increased internal pressure while causing contraction of the tube upon relief of the pressure to ensure partial dimensional recovery of the tubular case after firing of the projectile so that the case can be ejected from the gun chamber.

대표청구항 ▼

In a cased telescoped ammunition round, the combination comprising: (a) an elongated propellant charge having an axial bore therethrough; (b) an elongated tubular case composed of a skin tube having opposite ends terminating in edges and end caps on said opposite ends of the tube, said case defining

In a cased telescoped ammunition round, the combination comprising: (a) an elongated propellant charge having an axial bore therethrough; (b) an elongated tubular case composed of a skin tube having opposite ends terminating in edges and end caps on said opposite ends of the tube, said case defining a chamber that contains said propellant charge; (c) tubular means disposed in said case extending at least partially through said axial bore of said propellant charge at an aft portion thereof and attached at least at its aft end to said aft end of said case; (d) a projectile housed within a forward portion of said axial bore of said propellant charge; (e) a primer positioned within an aft portion of said tubular means and being actuatable for igniting said propellant charge to cause firing of said projectile forwardly from said case; and (f) attachment means for locking said end caps onto said opposite ends of said skin tube of said case, said attachment means including (i) a plurality of inclined spring fingers formed from said skin tube adjacent each of said opposite ends thereof, said spring fingers at each skin tube end having inner free ends and being bent to project in an inclined fashion away from said skin tube and toward the opposite tube end, and (ii) an annular recess defined in each of said end caps, said recess having an outboard shoulder and an inboard end spaced from said shoulder, said recess also slanting at a slight angle to said skin tube so as to complement the inclination of said spring fingers for seating one of said skin tube ends and said inclined spring fingers projecting therefrom in locking relation in said slanting recess with said edge of said one skin tube end abutting said outboard shoulder of said recess and said free ends of said inclined spring fingers on said one skin tube end abutting said inboard end of said recess.