Patent ID: 9581409
Date: 2017-02-28
CPC Classifications: F41B

Claim:
1. A apparatus for accelerating a projectile, comprising: a launcher configured for launching a projectile comprising metallic conductors, wherein said bore comprises a longitudinal axis that is axial with the launch direction of said launcher; a first set of coils configured for immersing, while said projectile is stationary at a first position within said bore, said metallic conductors in an inducing field of magnetic flux for a first finite period of time, wherein said projectile remains stationary relative to said launcher for the entire duration of said first finite period of time, wherein said inducing field is transverse to said longitudinal axis, wherein flux will be trapped within said metallic conductors for a second finite period of time after said first finite period of time has ended; means for terminating immersing said metallic conductors in an inducing field of magnetic flux while said projectile is at said first position and is stationary relative to said launcher; and a second set of coils configured for exposing, while said projectile is at said first location and during said second finite period of time, said projectile to operatively directed currents at 90 degrees to said longitudinal axis to accelerate said projectile down said launcher.