Abstract: A specialized recoil absorber mounted to a gun dampens and absorbs the recoil force of a gun during the firing thereof. The recoil absorber includes a closed, fluid filled cylinder having a first end and a second end. A piston closely fits within the cylinder and slides therein along the cylinders longitudinal axis and a spring is compressed between the piston and the first end. The cylinder defines channels at an outer diametrical surface thereof, the channels having a helical twist centered on the longitudinal axis, whereby the piston rotates as it translates.

Abstract: Disclosed is a flash suppressor for guns which controlledly vents ignited high pressure gas exiting a gun muzzle. The gas is vented essentially radially outward through coils or rings of the suppressor in a 360 flow degree pattern away from a longitudinal axis of the suppressor.

Abstract: Disclosed is an improved design for individual flechettes, a multiplicity of which are arrayed in an ammunition cartridge for a gun. The flechettes have elongate solid bodies centered about a longitudinal axis, the bodies tapering from a waist to both forward end and rearward end. The waists of the flechettes are closer to the forward end than to the rearward end so that the flechettes' centers of gravity are closer to the forward ends than the rearward ends. The flechettes may have regular polygonal cross sections or essentially regular polygonal cross sections wherein the flechettes define fins along their bodies. Packing arrangements of the flechettes within ammunition cartridges are also shown.

Abstract: Disclosed is a flash suppressor for guns which controlledly vents ignited gh pressure gas exiting a gun muzzle. The gas is vented essentially radially outward through coils or rings of the suppressor in a 360 flow degree pattern away from a longitudinal axis of the suppressor.

Abstract: The invention is a nonmetallic gun barrel having a a longitudinally rigid tubular exterior capable of radial elastic deformation upon passage of a projectile therethrough. Liner segments fixed at the inner diameter of the barrel exterior are abutted end to end and form spiraled rifling structures comprised of shallow channels and ridges between the channels. Radial gaps between sides of the liners can be partly filled by radial projections of elastomeric material of the barrel exterior. The radial projections expand inwardly to seal against a projectile bearing against the inner periphery of the barrel as the projectile is fired from the barrel.

Abstract: The invention is a nonmetallic gun barrel having a a longitudinally rigid tubular exterior capable of radial elastic deformation upon passage of a projectile therethrough. Linear segments fixed at the inner diameter of the barrel exterior are abutted end to end and form spiraled rifling structures comprised of shallow channels and ridges between the channels. Radial gaps between sides of the liners can be partly filled by radial projections of elastomeric material of the barrel exterior. The radial projections expand inwardly to seal against a projectile bearing against the inner periphery of the barrel as the projectile is fired from the barrel.

Abstract: The invention is an improved partially jacketed projectile intended for small arms use. The projectile includes a central stem integral with a rear wall of the projectile, the rear wall in turn being integral with the partial jacket. A core surrounding the stem and encased by the jacket is softer than the material forming the stem, rear wall and jacket. The jacket retards core petalling during initial projectile impact whereas the rear wall configuration enhances petalling when the projectile achieves subsequent target penetration.

Abstract: The invention is a nonmetallic gun barrel having a longitudinally rigid tubular exterior capable of radial elastic deformation upon passage of a projectile therethrough. Liner segments fixed at the inner diameter of the barrel exterior are abutted end to end and form spiraled rifling structures comprised of shallow channels and ridges between the channels. Radial gaps between sides of the liners can be partly filled by radial projections of elastomeric material of the barrel exterior. The radial projections expand inwardly to seal against a projectile bearing against the inner periphery of the barrel as the projectile is fired from the barrel.

Abstract: The invention is a jacketed projectile for a round of ammunition wherein the jacket is deformed at least partially elastically when the projectile is driven through the barrel of a gun, the core of the projectile remaining undeformed.

Abstract: The invention is a firearms projectile having an improved petalling action upon impacting a target. The projectile includes a slug whose head is separated into petalling elements by fins of a softer material than that of the slug, the head defining a central recess from which the fins radiate. The slug has a core therein which is forwardly and rearwardly tapered and is configured to assist the outward movement of the petalling elements after the projectile impacts. The cylindrical walls of the projectile provide a limited, controlled degree of longitudinal support to the petalling elements and the projectile includes means to force the cylindrical walls outward and away from the petalling elements once impact begins.

Abstract: The invention is a jacketed projectile for a round of ammunition wherein the jacket is deformed at least partially elastically when the projectile is driven through the barrel of a gun, the core of the projectile remaining undeformed.

Abstract: The invention is a jacketed projectile for a round of ammunition wherein the jacket is deformed at least partially elastically when the projectile is driven through the barrel of a gun, the core of the projectile remaining undeformed.

Abstract: A multi purpose bayonet including a combat knife and scabbard is disclosed. The system can be used to sever wire and the like using one hand.

Abstract: A low temperature curing polyurethane coating system of high solids content at any given viscosity is provided which enables the deposition of adherent corrosion resistant coatings having a desirable balance of hardness and flexibility by using a mixture of (1) a solution copolymer consisting essentially of from 55-85% styrene and monoethylenically unsaturated hydroxy functional monomer, the copolymer being in solution in a mixture of (A) inert water-free volatile organic solvent and (B) a bisphenol-based polyhydric alcohol, and (2) an organic polyisocyanate. The polyisocyanate is kept separate from the copolymer solution until the desired liquid mixture is formed and used.

Abstract: A low temperature curing polyurethane coating system is provided which enables the deposition of adherent corrosion resistant coatings having a desirable balance of hardness and flexibility by using a mixture of a solution copolymer of from 55-85% styrene with the balance of the copolymer consisting essentially of monoethylenically unsaturated hydroxy functional monomer, the copolymer being in solution in inert organic solvent, and an organic polyisocyanate. The polyisocyanate is kept separate from the copolymer solution until the desired liquid mixture is formed and used. Steel substrates coated with this coating system are cured without exceeding 250.degree. F.

Abstract: A low temperature curing polyurethane coating system is provided which enables the deposition of adherent corrosion resistant coatings having a desirable balance of hardness and flexibility by using a mixture of a solution copolymer of from 55-85% styrene with the balance of the copolymer consisting essentially of monoethylenically unsaturated hydroxy functional monomer, the copolymer being in solution in inert organic solvent, and an organic polyisocyanate. The polyisocyanate is kept separate from the copolymer solution until the desired liquid mixture is formed and used.