Ammunition and explosives – Powder form – Having embedded reinforcing or burning control means
Patent
1985-06-19
1986-04-15
Nelson, Peter A.
Ammunition and explosives
Powder form
Having embedded reinforcing or burning control means
102292, 60253, C06B 4500
Patent
active
045819980
ABSTRACT:
The invention is an improved solid propellant grain, wherein the solid prllant grain is structured to provide a programmed method and system for splitting the solid propellant grain at a programmed moment to provide an increase in the burning surface. The programmed-splitting of the solid propellant grain provides improved ballistic performance of guns, which yields a higher muzzle velocity for a given projectile without increasing the maximum pressure exerted on the gun chamber. The improvement consists of embodiments that are a plurality of slits of various configurations through the longitudinal length of each grain of solid propellant. The improvement includes a structure to delay end burning of the grains until the longitudinal exterior surface burns sufficiently to split the grain into a plurality of sections at a programmed moment when the increased burning surface is desired to occur. The improvement also consists of another embodiment wherein the grain is structured in a spiral configuration to provide a similar increased burning surface for a programmed moment when the increased burning surface is desired to occur.
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Horst, Jr. Albert W.
Robbins Frederick W.
Gibson Robert P.
Lane Anthony T.
Nelson Peter A.
Sachs Michael C.
The United States of America as represented by the Secretary of
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