Olin Corporation

Jack D Dippold

Peter W Robinson

Douglas D Olson

Randant D Huelsmann

David K Schluckebier

Alan J Corzine

Brian Mravic

Howard Muldrow

Morris C Buenemann, Jr

Scott H Mayfield

Melvin Ward Harris

Mark R Miller

Morris C Bueneman

A projectileless ammunition system () includes a metallic case (). A propellant charge () is carried by the case and covered by an over-powder member () in the absence of a separate projectile. The ammunition is advantageously used with an industrial ballistic tool operating so that each spent case serves as the effective projectile to be propelled by firing of the next round of ammunition.

Industrial ammunition

A frangible projectile for expelling from an industrial ballistic tool may be formed by a powder metallurgy process. A preferred embodiment of slug consists essentially of compacted and optionally sintered material and comprises up to 35% ferrotungsten in particulate form, up to 3% lubricant, and the balance iron in particulate form with inevitable impurities.

Slug for industrial ballistic tool

A plated hallow point bullet has a metallic plating which completely encapsulates a metallic core. A core precursor is formed having a nose compartment. A metallic coating is applied to the precursor to completely encapsulate the precursor. The coated precursor is mechanically deformed without breaching the coating.

Bullet

A plated hollow-point bullet has a metallic plating which completely encapsulates a metallic core. A core precursor is formed having a nose compartment with an inwardly extending cavity. A metallic coating is applied to the precursor to completely encapsulate the precursor. The coated precursor is mechanically deformed by grooves formed along a surface of the cavity without breaching the coating.

A projectileless ammunition system ( ) includes a metallic case ( ). A propellant charge ( ) is carried by the case and cover by an over-powder member ( ) in the absence of a separate projectile. The ammunition is advantageously used with an industrial ballistic tool operating so that each spent case serves as the effective projectile to be propelled by firing of the next round of ammunition.

A relatively high carbon, water-atomized, steel shot is softened via annealing to render it suitable for ballistic use. The annealing preferably includes decarburization from a surface layer or throughout and preferably provides the shot with a surface Knoop hardness of less than 250.

Steel ballistic shot and production method

There is provided a powder actuated tool effective to drive a metallic fastener into a workpiece, for example, a nail gun. The pressure to drive the fastener is generated by combustion of an flammable propellant mix that is ignited by a primer flash. The primer flash having been generated by ignition of a combustible gas by discharge of an electric arc in the tool barrel. The combustible gas is lead-free such that the operator and the environment are not exposed to dangerous lead residue during use. The use of a solid propellant generates higher pressure and more effective driving of the metallic fastener than is achieved with powder actuated tools driven solely by combustible gases.

Gas primed powder actuated tool

A projectile for an industrial ballistic tool is formed from zinc or a zinc based alloy. The projectile has symmetry about a longitudinal axis and a rear portion of the projectile engages rifling, either within the barrel of the industrial ballistic tool or in a rifled extension, imparting ballistic stability. The projectile is particularly suited for high temperature industrial applications, such as removal of 'clinkers' from cement kilns or lime kilns or removal of a plug when tapping an electric arc furnace, as used in the manufacture of metallic alloys such as ferrosilicon. The vaporization temperature of the projectile is sufficiently low that after effecting removal of the clinker or plug, the projectile vaporizes and does not contaminate the kiln, furnace or end product such as lime, cement or metallic alloy.

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Edwardsville, IL, United States of America

Jack D Dippold