ALEXANDRIA, Va., June 16 -- United States Patent no. 12,656,090, issued on June 16.

"Propellant charge and cannon shell therewith" was invented by David Cohen (Herzliya, Israel).

According to the abstract* released by the U.S. Patent & Trademark Office: "A propellant mechanism for launching a projectile comprises a propellant with a detonation point at which said propellant is initially detonated which is at one end in a forward direction closest to said projectile, such that the detonation proceeds through the propellant in a backwards direction away from the projectile. A reflecting surface is provided away from said projectile for reflecting the detonation into the forward direction towards the projectile."

The patent was filed on Mar...