Abstract: This invention concerns a baseball batting training device comprised of a weight sized for positioning in co-axial assembly with a knob of a baseball bat. The weight has an internally threaded nut secured in fixed assembly therewith. A threaded bolt bore extends through the weight and is co-axially aligned with the threaded bore defined by the internally threaded nut. A jam nut is threadingly engaged to the bolt. The bolt has external threads and is threadingly engaged through the threaded bore of the internally threaded nut. A pair of annular members are attached to the weight. The annular members are extended away from the weight in a crossed pattern and are positioned in engagement with axially facing remote surface areas of said knob of the baseball bat. The bolt when adjusted exerts a pulling force against the pair of annular members engaged against the axially facing remote surface areas of the knob to hold the baseball batting training device in fixed assembly with the knob of the baseball bat.

Abstract: A baseball bat is provided which is sized and configured to conform to official baseball bat regulations and standards for use of the baseball bat in official baseball games which is connectable in combination with a practice device for use in training. The baseball bat has a knob end disposed at one end of the bat adjacent to a cyclindrically shaped handle portion of the bat. The knob end has a socket hole with internal threads in axial alignment with the bat. The socket hole and internal threads are formed integral with the knob end of the bat so that the bat conforms to official baseball bat regulations and standard when the baseball bat is used without the practice device. The practice device includes a weight structure having a weight sized for positioning in coaxial engagement with the knob end of the baseball bat.

Abstract: A baseball bat is provided which sized and configured for use in a baseball game by itself and in combination with a practice device for use in training. The baseball bat has a knob end disposed at one end of the bat adjacent to a cylindrically shaped handle portion of the bat. The knob end has a socket hole in axial alignment with the bat. The practice device including a weight structure having a weight sized for positioning in coaxial engagement with the knob end of the baseball bat. The weight has a mass in the range of one to forty-eight ounces. The weight structure has a connecting structure projecting outwardly from the weight structure for disengageable connection within the socket hole to secure the practice device in fixed position with the knob end of the baseball bat for use in training.

Abstract: A baseball bat practice device is provided for connection to a baseball bat with a knob at one end. The device includes a weight sized for positioning in co-axial assembly with the knob of the baseball bat. A plate member having an axial bore is provided. A bolt threadingly engages the bore of the plate member. A pair of annular members are attached to the plate member with the annular members extending away from the plate member in a crossed pattern and being positioned in engagement with axially facing surface areas of said knob of the baseball bat. The weight being removably connected to the bolt so that a user may selectively practice with a weight having a desired mass. The bolt, when rotated, exerting a pulling force against the pair of annular members engaged against the axially facing surface areas of the knob to hold the baseball batting training device in fixed engagement with the knob of said baseball bat.