Abrégé

An automatic or semiautomatic rifle having a short-stroke action with multiple firing chambers which are arranged radially around an axis of rotation parallel to the firing bore. The multiple firing chambers reciprocate rearward and forward while the assembly is indexed through a loading, firing, and ejection sequence. Ammunition cartridges are inserted into the forward end of the chambers and subsequently positioned against the rear of a barrel of the rifle for firing.

Classes IPC  ?

• F41A 9/22 - Plateaux ou augets mobiles de chargement des munitions, p.ex. pour l'alimentation à partir de chargeurs coulissants, p.ex. à mouvement de va-et-vient dans une direction horizontale
• F41A 19/56 - Allumage d'une charge propulsive par de l'air chauffé par une compression adiabatique
• F41A 9/23 - Plateaux ou augets mobiles de chargement des munitions, p.ex. pour l'alimentation à partir de chargeurs coulissants, p.ex. à mouvement de va-et-vient montés dans une arme individuelle
• F41A 9/44 - Pistons-refouloirs utilisant un fluide

Abrégé

An ammunition cartridge having a cup-shaped casing. The cup-shaped casing has a closed reward end with a rearward diameter and an open forward end having a forward diameter that is larger than the rearward diameter. A sidewall extends between the peripheries of the rearward end and the top end of the casing. The sidewall tapers from the smaller rearward diameter to the larger forward diameter along a length of a hollow interior of the casing that holds a propellant charge.

Classes IPC  ?

• F42B 5/26 - Douilles
• F42B 5/02 - Cartouches, c. à d. projectile et douille avec charge propulsive formant un tout

Abrégé

The present disclosure relates to forming a dispersion of metamaterial particles in an atmosphere. The metamaterial particles can be dispersed into the atmosphere, for example, from an aircraft or another type of platform, to form the dispersion. The resulting dispersion can interact with electromagnetic signals in the atmosphere. The particles may strongly interact with both the magnetic and electric field components of the electromagnetic signals. In some implementations, the dispersion absorbs electromagnetic signals in a frequency range. In some implementations, the dispersion modifies electromagnetic signals in a frequency range, for example, by applying a phase shift, a polarization shift, a frequency shift, or a reflection angle to the electromagnetic signals.

Classes IPC  ?

• G02B 27/00 - Systèmes ou appareils optiques non prévus dans aucun des groupes ,