George S Chryssomallis

52312429, Jul 27, 1993

Nov 18, 1991

7/794110

George S. Chryssomallis - Golden Valley MN
James P. Warren - Coon Rapids MN
Dennis Borgwarth - Anoka MN

FMC Corporation - Chicago IL

F41B 600

89 8

The apparatus disclosed herein relates to plasma injection and distribution systems which release high energy plasma into a combustible mass to promote efficient combustion and maximize the muzzle velocity of a projectile. The devices inject plasma streams into a combustible mass in a coherent and directed manner such that pressure peaks and the resultant thermal and dynamic stresses are eliminated. Particularly, strategically positioned outlet orifices and nozzles enable the invasion of a propellant mass by plasma jet streams to create controllable uniform ignition and combustion therein.

47111542, Dec 8, 1987

Oct 31, 1985

6/795033

George Chryssomallis - Golden Valley MN
Robert S. Griffing - Andover MN

FMC Corporation - Chicago IL

F41F 104

89 7

A propulsion device uses an electrically driven plasma injector to feed combustible fuel into a chamber prefilled with an oxidizer. A reaction between the two constituents augments the electrical power input to produce amplified pressure for the acceleration of projectiles.

48950629, Jan 23, 1990

Apr 18, 1988

7/182683

George S. Chryssomallis - Golden Valley MN
Chris S. Sorenson - Edina MN
Stephen F. Mulich - Blaine MN
Charalampos D. Marinos - Brooklyn Park MN

FMC Corporation - Chicago IL

F41F 104

89 7

Apparatus for providing a controlled increase in muzzle velocity of a projectile while reducing peak value of gas pressure inside a gun barrel. A cartridge includes an elongated body having a central bore divided into three chambers, with a fuel chamber separated from an oxidizer chamber and an elongated capillary chamber by a plurality of membranes. A fuse wire and a power supply vaporize a plasma base in the capillary chamber and provide a controlled jet to provide combustion between a second fuel in the fuel chamber and an oxidizer material in the oxidizer chamber. The power supply controls the fuel-oxidizer combustion rate to obtain a relatively steady pressure of long duration against the projectile which results in high projectile velocity with relatively low peak values of pressure in the gun barrel.