The present invention discloses a bullet with a negative Poisson's ratio effect and a method of designing thereof. The bullet includes a cylindrical section of the bullet having a negative Poisson's ratio design, and a conical tail of the bullet and a tip of the bullet each with a matching design; the cylindrical section of the bullet is a tubular structure having periodically alternating transverse and vertical holes; the tubular structure includes a plurality of holes, with a center axis of one hole being axially perpendicular to a center axis of another adjacent hole, that is, the axis of each hole being structurally orthogonal to an adjacent hole; and the holes in rows and columns are periodically arranged into the tubular structure, which is a tubular structure having the negative Poisson's ratio effect.

The present invention discloses a bullet with a negative Poisson's ratio effect and a method of designing thereof. The bullet includes a cylindrical section of the bullet having a negative Poisson's ratio design, and a conical tail of the bullet and a tip of the bullet each with a matching design; the cylindrical section of the bullet is a tubular structure having periodically alternating transverse and vertical holes; the tubular structure includes a plurality of holes, with a center axis of one hole being axially perpendicular to a center axis of another adjacent hole, that is, the axis of each hole being structurally orthogonal to an adjacent hole; and the holes in rows and columns are periodically arranged into the tubular structure, which is a tubular structure having the negative Poisson's ratio effect.

A nosecone apparatus for hypersonic aircraft, rocket or missiles using a method for the mitigation of the created the shock front of a rocket or aerospace plane flying at hypersonic speeds by using nosecone splines to create both centripetal and isentropic airflows in conjunction with regeneratively cooling the nosecone structure.

A nosecone apparatus for hypersonic aircraft, rocket or missiles using a method for the mitigation of the created the shock front of a rocket or aerospace plane flying at hypersonic speeds by using nosecone splines to create both centripetal and isentropic airflows in conjunction with regeneratively cooling the nosecone structure.

The inventive subject matter is directed to systems and apparatuses that are designed to work in cooperation with a firearm such that the firearm can fire a less lethal projectile. Systems can include a mounting device that clips onto a firearm, where that mounting device also include mounting posts. The mounting posts protrude from an end of the mounting device, and the mounting posts are designed to couple with mounting holes on an associated slug. Slugs of the inventive subject matter thus feature mounting holes and a center-bored hole that is designed to capture a bullet that is fired from a firearm that the system is coupled to. When a bullet is captured by a slug, an inelastic collision takes place that causes the slug to leave the firearm at around 20% of the bullet's original speed.

The inventive subject matter is directed to systems and apparatuses that are designed to work in cooperation with a firearm such that the firearm can fire a less lethal projectile. Systems can include a mounting device that clips onto a firearm, where that mounting device also include mounting posts. The mounting posts protrude from an end of the mounting device, and the mounting posts are designed to couple with mounting holes on an associated slug. Slugs of the inventive subject matter thus feature mounting holes and a center-bored hole that is designed to capture a bullet that is fired from a firearm that the system is coupled to. When a bullet is captured by a slug, an inelastic collision takes place that causes the slug to leave the firearm at around 20% of the bullet's original speed.

A bullet with controlled fragmentation has a core in the form of a generally cylindrical body having a forward end and a rear end and intermediate side portions extending there between, the forward end of the core defining a cavity, a jacket encompassing the rear end and at least selected portions of the sides of the core, the jacket having a sidewall having a first drive band portion having a first wall thickness, and a second portion immediately forward of the drive band portion having a second thickness less than the first thickness, the exterior of the jacket defining a cannelure groove encircling the bullet, and the cannelure groove being positioned forward of the first drive band portion. The drive band may have forward edge defining a step. The bullet of the present invention may also be received in the case mouth of a rimless case and be partially protruding therefrom.

A bullet with controlled fragmentation has a core in the form of a generally cylindrical body having a forward end and a rear end and intermediate side portions extending there between, the forward end of the core defining a cavity, a jacket encompassing the rear end and at least selected portions of the sides of the core, the jacket having a sidewall having a first drive band portion having a first wall thickness, and a second portion immediately forward of the drive band portion having a second thickness less than the first thickness, the exterior of the jacket defining a cannelure groove encircling the bullet, and the cannelure groove being positioned forward of the first drive band portion. The drive band may have forward edge defining a step. The bullet of the present invention may also be received in the case mouth of a rimless case and be partially protruding therefrom.

The inventive subject matter is directed to systems and apparatuses that are designed to work in cooperation with a firearm such that the firearm can fire a less lethal projectile. Systems can include a mounting device that clips onto a firearm, where that mounting device also include mounting posts. The mounting posts protrude from an end of the mounting device, and the mounting posts are designed to couple with mounting holes on an associated slug. Slugs of the inventive subject matter thus feature mounting holes and a center-bored hole that is designed to capture a bullet that is fired from a firearm that the system is coupled to. When a bullet is captured by a slug, an inelastic collision takes place that causes the slug to leave the firearm at around 20% of the bullet's original speed.

The inventive subject matter is directed to systems and apparatuses that are designed to work in cooperation with a firearm such that the firearm can fire a less lethal projectile. Systems can include a mounting device that clips onto a firearm, where that mounting device also include mounting posts. The mounting posts protrude from an end of the mounting device, and the mounting posts are designed to couple with mounting holes on an associated slug. Slugs of the inventive subject matter thus feature mounting holes and a center-bored hole that is designed to capture a bullet that is fired from a firearm that the system is coupled to. When a bullet is captured by a slug, an inelastic collision takes place that causes the slug to leave the firearm at around 20% of the bullet's original speed.