A bat includes a handle configured to be held by a user having a first end and a second end opposite the first end, the first end includes a knob having a larger diameter than the handle. The bat further includes a barrel extending from the second end of a handle, the barrel configured to strike a ball during play. The barrel includes a first layer primarily composed of a single wall aluminum, a double wall aluminum, a single wall titanium, a double wall titanium, a single wall composite, or a multi wall composite. A second layer is connected to the first layer and configured to support the first layer to prevent the first layer from fatiguing, permanent damage, or exceeding applicable rules limiting the hotness of the bat.

A bat includes a handle configured to be held by a user having a first end and a second end opposite the first end, the first end includes a knob having a larger diameter than the handle. The bat further includes a barrel extending from the second end of a handle, the barrel configured to strike a ball during play. The barrel includes a first layer primarily composed of a single wall aluminum, a double wall aluminum, a single wall titanium, a double wall titanium, a single wall composite, or a multi wall composite. A second layer is connected to the first layer and configured to support the first layer to prevent the first layer from fatiguing, permanent damage, or exceeding applicable rules limiting the hotness of the bat.

A ball bat includes outer shell segments longitudinally spaced apart from each other to form a gap between them. A joint connects the segments. A first outer shell segment may include a barrel portion of the ball bat and at least part of a tapered portion of the ball bat. A second outer shell segment may include at least part of the tapered portion. The joint may include a tubular element having a first portion positioned within the first outer shell segment and at least partially overlapping an interior surface of the first outer shell segment, and a second portion positioned within the second outer shell segment and at least partially overlapping an interior surface of the second outer shell segment. The tubular element may include an elastomeric material. In some embodiments, the joint may be formed by an elastomeric material connecting the outer shell segments in the gap.

A ball bat includes a barrel wall with perforations positioned within a ball striking area of the bat. Perforations may extend through all or part of the barrel wall. In some embodiments, a filler material may be positioned in the perforations, or a cover element may be positioned over the perforations, to form a generally flush surface between the filler material and a surface of the barrel wall. Filler material may be less dense than material forming the remainder of the barrel wall. In some embodiments, a barrel wall may include a plurality of layers of composite laminate material. One or more of the layers may have perforations positioned radially between the other layers. In some embodiments, the perforations in the composite laminate material may be generally aligned to form a larger perforation extending through all or part of the barrel wall.

The present invention discloses a swing training device for enabling a user to learn a proper swing. The swing training device comprising a barrel, a handle having a first handle portion and a second handle portion and an extender device coupling the first handle portion and the second handle portion. The swing training device is configured to enable a user to achieve proper swing mechanics through feedback or diagnosis and correction of an individual user's swing. The swing training device further configured enable the user to establish muscle memory in the correct batting position so that the user would be able to assume the proper position and execute the swing consistently with proper swing mechanics.

The present invention discloses a swing training device for enabling a user to learn a proper swing. The swing training device comprising a barrel, a handle having a first handle portion and a second handle portion and an extender device coupling the first handle portion and the second handle portion. The swing training device is configured to enable a user to achieve proper swing mechanics through feedback or diagnosis and correction of an individual user's swing. The swing training device further configured enable the user to establish muscle memory in the correct batting position so that the user would be able to assume the proper position and execute the swing consistently with proper swing mechanics.

A ball bat includes outer shell segments longitudinally spaced apart from each other to form a gap between them. A joint connects the segments. A first outer shell segment may include a barrel portion of the ball bat and at least part of a tapered portion of the ball bat. A second outer shell segment may include at least part of the tapered portion. The joint may include a tubular element having a first portion positioned within the first outer shell segment and at least partially overlapping an interior surface of the first outer shell segment, and a second portion positioned within the second outer shell segment and at least partially overlapping an interior surface of the second outer shell segment. The tubular element may include an elastomeric material. In some embodiments, the joint may be formed by an elastomeric material connecting the outer shell segments in the gap.

A ball bat includes outer shell segments longitudinally spaced apart from each other to form a gap between them. A joint connects the segments. A first outer shell segment may include a barrel portion of the ball bat and at least part of a tapered portion of the ball bat. A second outer shell segment may include at least part of the tapered portion. The joint may include a tubular element having a first portion positioned within the first outer shell segment and at least partially overlapping an interior surface of the first outer shell segment, and a second portion positioned within the second outer shell segment and at least partially overlapping an interior surface of the second outer shell segment. The tubular element may include an elastomeric material. In some embodiments, the joint may be formed by an elastomeric material connecting the outer shell segments in the gap.

A method of making a ball bat may include forming a bat frame with a handle and an inner barrel structure, providing spacer elements extending radially outwardly from the inner barrel structure, and forming a barrel shell having a main barrel and a tapered section. An inner diameter in the tapered section may be equal to an outer diameter of a first one of the spacer elements. The method may include mechanically locking the barrel shell to the bat frame by passing the handle through the barrel shell and moving the barrel shell toward the inner barrel structure until the barrel shell contacts the first one of the spacer elements. A gap is maintained between an outer diameter of the inner barrel structure and the barrel shell. The barrel shell may deflect during a hit to create a trampoline effect, while the inner barrel structure limits the deflection.

A method of making a ball bat may include forming a bat frame with a handle and an inner barrel structure, providing spacer elements extending radially outwardly from the inner barrel structure, and forming a barrel shell having a main barrel and a tapered section. An inner diameter in the tapered section may be equal to an outer diameter of a first one of the spacer elements. The method may include mechanically locking the barrel shell to the bat frame by passing the handle through the barrel shell and moving the barrel shell toward the inner barrel structure until the barrel shell contacts the first one of the spacer elements. A gap is maintained between an outer diameter of the inner barrel structure and the barrel shell. The barrel shell may deflect during a hit to create a trampoline effect, while the inner barrel structure limits the deflection.