초록 ▼

The bat of the present invention has a barrel with a thinner outer shell in compressive and/or adhesive engagement with an insert laminate comprised of one or more pieces of a thin metallic (preferably titanium) sheet (or foil) and one or more sheets of a composite material. The titanium portion of

The bat of the present invention has a barrel with a thinner outer shell in compressive and/or adhesive engagement with an insert laminate comprised of one or more pieces of a thin metallic (preferably titanium) sheet (or foil) and one or more sheets of a composite material. The titanium portion of the insert laminate may be on the inner-most portion of the insert, may be on the outer-most portion of the laminate, or may be in the interior of the laminate (that is, with one or more sheets of composite material on either side of it). Alternatively, the bat may simply be provided with only a titanium insert. In yet another set of embodiments, the titanium sheet may be replaced by another suitable metallic sheet. In all embodiments, the reinforcing sleeve allows the barrel portion to deflect farther when impacted by an object such as a ball without detrimental yielding (denting) and increases the rate of return of the barrel wall.

대표청구항 ▼

[ What is claimed:] [1.] A bat, comprising:a tubular outer shell having a handle, a barrel, and a tapered portion therebetween;and an insert laminate at least partially bonded to the interior surface of the barrel,wherein said insert laminate comprises a metallic sheet and two sheets of a composite

[ What is claimed:] [1.] A bat, comprising:a tubular outer shell having a handle, a barrel, and a tapered portion therebetween;and an insert laminate at least partially bonded to the interior surface of the barrel,wherein said insert laminate comprises a metallic sheet and two sheets of a composite material;said insert laminate being formed by bonding at least a portion of the metallic sheet to the interior surface of said outer shell and subsequently bonding the composite materials to the interior surface of the metallic sheet in such a manner as to generate compressive forces between said insert laminate and said outer shell.