US Patent 11602680 Ball bat with handle having lightening structures

A ball bat includes a handle portion with a handle secured in a sleeve in the handle portion. A void is defined within the knob and is not occupied by nor positioned within handle. The void may be defined by a gap between an end of the handle and a base of a sleeve. The gap may be defined by a smaller diameter opening, ribs (integral or separate insert), or protrusions. A void may be defined between an end of the knob and a base of the sleeve and may be occupied by stiffening ribs. The knob may be formed of two parts aligned using one or both of a pin and a locking tab. Parts of the knob extending outwardly from the sleeve may also include a void.