Bat for baseball or softball

A bat for sporting games, comprising:

• a first hollow tubular member having opposite first and second ends, the first member first end being located at a first, butt end of the bat, the first member extending from said butt end to form a handle region of a first diameter;
• a second member having opposite first and second ends, the second member first end being located at an opposite, barrel end of the bat, the second member extending from said barrel end to form a barrel region of a second, larger diameter;
• said first and second members extending beyond said handle and barrel regions, respectively, and the second end of said first member extending telescopically into the second end of said first member to form a telescopically overlapping region between said handle and barrel regions;
• the second member which is outermost in said overlapping region being shaped to form a tapered transition zone extending between said different diameter handle and barrel regions;
• the members being secured together in said overlapping region;
• the first member extending over only said butt region and tapered transition zone and terminating short of the barrel end of the bat;
• and
• the second member extending over only said barrel region and tapered transition zone and terminating short of the handle end of the bat.

A bat for sporting games, comprising:

• a first member having opposite outer and inner ends, the first member outer end being located at a first, butt end of the bat, the first member extending from said butt end to form a handle region of a first diameter having an inner end spaced from said butt end;
• a second member having opposite outer and inner ends, the second member outer end being located at the opposite, barrel end of the bat, the second member extending from said barrel end to form a barrel region of a second, larger diameter having an inner end spaced from said barrel end;
• at least the second member being a hollow tubular member and the inner end of said first member extending telescopically into the inner end of the second, tubular member to form a telescopically overlapping region;
• the second member being shaped to form a tapered transition zone extending between the inner ends of said different diameter handle and barrel regions, and said members being secured together along the length of the overlap;
• the first and second members being formed of different materials, the material forming said first member having a higher longitudinal flex modulus than that forming said second member;
• and
• the first member extending the entire length of said bat to form an inner layer in said transition zone and barrel region, and said second member comprising a protective sleeve extending over the first member in the barrel and transition region and terminating approximately at the inner end of said handle region.

A bat for sporting games, comprising:

• a first hollow tubular member having opposite outer and inner ends, the first member outer end being located at a first, butt end of the bat, the first tubular member extending from said butt end to form a handle region of a first diameter;
• a second hollow tubular member having opposite outer and inner ends, the second member outer end being located at the opposite, barrel end of the bat, the second tubular member extending from said barrel end to form a barrel region of a second, larger diameter;
• the inner end of one of said first and second members extending telescopically into the inner end of the other said member to form a telescopically overlapping region extending at least along a mid-section of the bat extending between said barrel and handle regions;
• the other said member which is outermost in said mid-section being shaped to form a tapered transition zone between said different diameter handle and barrel regions, and said members being secured together along the length of the overlap;
• the first and second members being formed of different reinforced, thermoplastic materials, the material forming said first member having a higher longitudinal flex modulus than that forming said second member;
• and
• the first and second tubular members each being of injection molded thermoplastic, the second tubular member being injection molded over the first tubular member along the length of the overlap to form a bond.

A bat for sporting games, comprising:

• a first hollow tubular member having opposite outer and inner ends, the first member outer end being located at a first, butt end of the bat, the first tubular member extending from said butt end to form a handle region of a first diameter;
• a second hollow tubular member having opposite outer and inner ends, the second member outer end being located at the opposite, barrel end of the bat, the second tubular member extending from said barrel end to form a barrel region of a second, larger diameter;
• the first member extending partially into the inner end of the second member to form a telescopically overlapping region extending at least along a mid-section of the bat extending between said barrel and handle regions;
• the second member which is outermost in said mid-section being shaped to form a tapered transition zone between said different diameter handle and barrel regions, and said members being secured together along the length of the overlap;
• the first and second members being formed of different materials, the material forming said first member having a higher longitudinal flex modulus than that forming said second member;
• and
• the wall thickness of said first tubular member varying along its length, the thickness being at a maximum in an area extending from said handle region into said transition zone, the wall thickness tapering from said maximum thickness area towards said first end of the bat.