Patent ID: 7506571

Claim:
A gun comprising a breech assembly adapted to receive a caseless charge and a plasma generator cartridge (PGC), and to fire the caseless charge with the aid of the PGC, the breech assembly comprising: a tilting block assembly movable between a sealed position and an open position, and having a sealing side and an opposite rear side, the sealing side being adapted to receive an obturation set and a spindle head which is adapted to receive a PGC for generating plasma, a sliding block and a breech ring for retaining the tilting block assembly in the sealed and open positions, the tilting block assembly being further movable between a PGC firing orientation and a PGC loading/removal orientation, and a crank means for rotating the tilting block assembly from the PGC firing orientation to the PGC loading/removal orientation when the tilting block moves from the sealed position to the open position, wherein the tilting block assembly is pivotally mounted on the crank means, relative to the breech assembly, for rotation about a first axis of rotation, from the sealed position to the open position, and wherein the crank means is pivotally mounted on the breech ring.