An impulsive noise suppresser and method thereof is provided. This discontinuous stator core structure contains short flux paths and maximum overlap between the rotor poles and stator poles in the stator discontinuous core structures, regardless of the rotor position. The cup holder arrangement includes two removable holder dividers which can be flipped up or down and held into position by a spring-loaded cam arrangement. The first cover covers the upper opening of the casing and includes a recessed portion recessed toward the bottom of the casing and including a first opening at the bottom thereof facing the deflector. The upper hemisphere contains a bore axially located therein for receiving the post of the lower hemisphere upon connection of the lower and upper hemispheres. A reinforcement member is disposed at the handle position to enhance the mechanical strength of the handle while locked.