Abstract: In one aspect, the present disclosure is directed to a method of manufacturing a substance having an improved tensile strength for additive manufacturing. The method can include providing raw material having a first tensile strength. The raw material can include a polymer. The method can include providing a filler material. The filler material can include clay, single wall carbon nanotubes, multi-wall carbon nanotubes, or boron nitride. The method can include cavitating, within a hydrodynamic cavitation chamber, the raw material and the filler material to produce a substance having a second tensile strength greater than the first tensile strength.

Abstract: A cartridge assembly (10) for firearms or weapons, said cartridge assembly including a support body (11) having a central longitudinal channel (16) housing a plurality of projectiles (20, 22, 24) in end-to-end orientation and having a plurality of circumferential chambers (14), wherein each chamber houses (14a, 14b, 14c) at least one propellant charge (12a, 12b, 12c) and is located adjacent to a respective projectile; fluid communication means (18) included in the support body for communicating the products of a gaseous expansion of said propellant from a respective chamber (14) into said central longitudinal channel (16); whereby, upon initiation of a selected propellant charge (12a, 12b, 12c), the communicated products of gaseous expansion from a circumferential chamber force or eject a respective projectile (20, 22, 24) from the cartridge assembly (10). The propellant charges may comprise a volume of propellant material encased in a bag with an igniter.

Abstract: A projectile sealing arrangement for a barrel assembly of a weapon in which a plurality of projectile assemblies are axially disposed in abutting relationship within a barrel. Each projectile assembly is associated with a discrete propellant charge. The sealing arrangement includes a rearward opening communicating with a cavity provided in each projectile assembly for containing the discrete propellant charge, and a forward portion of an abutting projectile assembly arranged for operative sealing engagement with the rearward opening. During application of a compressive load to abutting projectile assemblies, the discrete propellant charge is sealed within the cavity.

Abstract: A cartridge assembly (10) for firearms or weapons, said cartridge assembly including a support body (11) having a central longitudinal channel (16) housing a plurality of projectiles (20, 22, 24) in end-to-end orientation and having a plurality of circumferential chambers (14), wherein each chamber houses (14a, 14b, 14c) at least one propellant charge (12a, 12b, 12c) and is located adjacent to a respective projectile; fluid communication means (18) included in the support body for communicating the products of a gaseous expansion of said propellant from a respective chamber (14) into said central longitudinal channel (16); whereby, upon initiation of a selected propellant charge (12a, 12b, 12c), the communicated products of gaseous expansion from a circumferential chamber force or eject a respective projectile (20, 22, 24) from the cartridge assembly (10). The propellant charges may comprise a volume of propellant material encased in a bag with an igniter.

Abstract: A projectile sealing arrangement for a barrel assembly of a weapon wherein a plurality of projectile assemblies (10) are axially disposed in abutting relationship within a barrel (20), each projectile assembly (10) including a body (11) associated with a discrete propellant charge (15); said sealing arrangement comprising rearward opening (13) communicating with cavity (14) provided in said projectile assembly (10) for retaining the discrete propellant charge (15) and a forward portion (16) of an abutting projectile arranged for operative sealing engagement with a complementary portion (17) of the rearward opening (13). The sealing arrangement suitably includes surface portions of complementary shapes such that, during application of a compressive load (L) to abutting projectile assemblies (10), discrete propellant charge (15) is scaled within the cavity (14). There is also disclosed and claimed a chain of individual projectiles connected head to tail by complementary spigot and socket members.

Abstract: A cartridge assembly (10) for firearms or weapons, said cartridge assembly including a support body (11) having a central longitudinal channel (16) housing a plurality of projectiles (20, 22, 24) in end-to-end orientation and having a plurality of circumferential chambers (14), wherein each chamber houses (14a, 14b, 14c) at least one propellant charge (12a, 12b, 12c) and is located adjacent to a respective projectile; fluid communication means (18) included in the support body for communicating the products of a gaseous expansion of said propellant from a respective chamber (14) into said central longitudinal channel (16); whereby, upon initiation of a selected propellant charge (12a, 12b, 12c), the communicated products of gaseous expansion from a circumferential chamber force or eject a respective projectile (20, 22, 24) from the cartridge assembly (10). The propellant charges may comprise a volume of propellant material encased in a bag with an igniter.

Abstract: A barrel assembly for insertion into a parent barrel of a gun wherein said barrel assembly has a plurality of projectiles axially disposed within at least one barrel of said barrel assembly and associated with discrete selectively ignitable propellant charges for propelling the projectiles from said at least one barrel wherein said barrel assembly includes a parent barrel engaging means. The barrel is suitably provided in a removable rear barrel section having engagement means for operatively aligning the rear barrel section with a forward barrel extension. Spare rear barrel sections may be stored in a stock of the gun and automatically fed into alignment upon exhaustion of the projectiles in the barrel.

Abstract: An extension for a shelf, the shelf having a substantially planar top surface, a plurality of holes in the top surface, and a front edge. The extension includes a substantially planar shelf portion having a front, back, and left and right sides. The front of the planar shelf portion has a curved portion between the left and right sides. A plurality of downward extending tabs are under the planar shelf portion and are arranged in alignment with corresponding holes in a shelf. A lip extends downward from the curved portion of the planar shelf portion. When the extension is installed on a shelf, the tabs engage the holes in the shelf and the planar shelf portion is substantially parallel with and on the planar top surface of the shelf and the lip is positioned in front of the shelf front lip.

Abstract: A barrel assembly (14) for insertion into a parent barrel (13) of a gun (10) wherein said barrel assembly has a plurality of projectiles (16) axially disposed within at least one barrel (15a) of said barrel assembly and associated with discrete selectively ignitable propellant charges for propelling the projectiles from said at least one barrel wherein said barrel assembly (14) includes a parent barrel engaging means. The barrel is suitably provided in a removable rear barrel section (15a) having engagement means (17, 18) for operatively aligning the rear barrel section with a forward barrel extension. Spare rear barrel sections (15b, 15c) may be stored in a stock (11) of the gun (10) and automatically fed into alignment upon exhaustion of the projectiles (16) in the barrel.

Abstract: An extension for a shelf, the shelf having a substantially planar top surface, a plurality of holes in the top surface, and a front edge. The extension includes a substantially planar shelf portion having a front, back, and left and right sides. The front of the planar shelf portion has a curved portion between the left and right sides. A plurality of downward extending tabs are under the planar shelf portion and are arranged in alignment with corresponding holes in a shelf. A lip extends downward from the curved portion of the planar shelf portion. When the extension is installed on a shelf, the tabs engage the holes in the shelf and the planar shelf portion is substantially parallel with and on the planar top surface of the shelf and said lip is positioned in front of the shelf front lip.