The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 18, 1994
Filed:
May. 04, 1992
Charalampos D Marinos, Brooklynn Center, MN (US);
James P Warren, Coon Rapids, MN (US);
Amir Chaboki, Minneapolis, MN (US);
Chris S Sorensen, Edina, MN (US);
Mark E Schneider, Minneapolis, MN (US);
FMC Corporation, Chicago, IL (US);
Abstract
The method and apparatus disclosed herein relates to harnessing plasma to ignite, pressurize and distribute plasma, plasma-ignited chemical fluid and fuel throughout a propellant mass. Particularly, the present invention enables the creation of a progressive burning surface whereby the propellant reaches maximum pressure controllably and losses pressure much more slowly thus creating high piezometric efficiency. More particularly, in gun-charge-projectile systems, by using radial perforations designed to provide a balanced plasma discharge through a capillary wall and by developing forward accelerating thrust components, induced by the plasma pressure on a plasma-ignited chemical fluid and fuel mixture, the propelling charge travels down the gun tube with the projectile thus exerting substantial uniform pressure throughout the tube length and yielding a high ballistic efficiency which results in the attainment of high muzzle velocities.