초록 ▼

An end cap for a hollow aluminum bat having a barrel with a substantially constant external diameter area defining a hitting zone. The end cap is constructed of rigid plastic material and includes a reduced diameter inner end which telescopes into the end of the bat. The barrel includes a peripheral

An end cap for a hollow aluminum bat having a barrel with a substantially constant external diameter area defining a hitting zone. The end cap is constructed of rigid plastic material and includes a reduced diameter inner end which telescopes into the end of the bat. The barrel includes a peripheral groove in the internal surface adjacent the end of the bat and the reduced end of the cap includes a peripheral ridge received in the groove to anchor the end cap to the barrel. The distal end of the end cap is constructed with a concave end surface which moves the weight of the end cap axially inwardly in relation to the end of the aluminum bat. The end cap may include a conically shaped solid weight area extending axially inwardly from the inner surface of the end cap to increase the load at the end of the bat and also move the increased load inwardly in relation to the end of the bat.

대표청구항 ▼

An aluminum bat comprising a handle portion and a tubular barrel having a substantially constant external diameter area defining a hitting zone extending to an end remote from the handle portion and an end cap having a short peripheral portion with an external diameter equal to the external diameter

An aluminum bat comprising a handle portion and a tubular barrel having a substantially constant external diameter area defining a hitting zone extending to an end remote from the handle portion and an end cap having a short peripheral portion with an external diameter equal to the external diameter of the barrel, said end cap including a reduced diameter inner end portion telescoped into the end of the barrel for mounting the end cap on the barrel, said tubular barrel including a peripheral groove in the internal surface thereof adjacent said end of the bat remote from said handle portion, said reduced diameter inner end portion of the end cap including a peripheral ridge projecting into said groove for anchoring the end cap to the barrel, said end cap including an end wall with a concave recess extending inwardly from an axial outer surface of the end wall thereby moving the weight center of the end cap axially inwardly in relation to the end of the barrel closer to the handle portion of the bat and closer to the optimum area of the barrel hitting zone to be impacted with a ball.