The subject disclosure relates to a racket apparatus and method for tuning string tension of the string elements of a racket apparatus. Furthermore, the racket apparatus can be a tunable sport racket in which players can monitor, adjust, and lock a desired string tension without replacing racket strings. In an aspect, the racket apparatus can comprise a throat element through which strings are threaded. Furthermore, the throat element can comprise contact points along an indented track of an outer frame element of the racket apparatus by which a tuning mechanism can be initiated to shift the throat element and adjust a string tension of the racket apparatus.

A golf club has a first shaft coupled to a club head, a second shaft configured to slidably engage a portion of the first shaft, a grip coupled to the second shaft, and an adjustable length shaft assembly received by the second shaft and configured to allow a portion of the first shaft to slide in relation to the second shaft in a first configuration, and to restrict a portion of the first shaft from sliding in relation to the second shaft in a second configuration. The grip is restricted from rotation about the first shaft or the second shaft as the first shaft slides in relation to the second shaft.

A golf club has a first shaft coupled to a club head, a second shaft configured to slidably engage a portion of the first shaft, a grip coupled to the second shaft, and an adjustable length shaft assembly received by the second shaft and configured to allow a portion of the first shaft to slide in relation to the second shaft in a first configuration, and to restrict a portion of the first shaft from sliding in relation to the second shaft in a second configuration. The grip is restricted from rotation about the first shaft or the second shaft as the first shaft slides in relation to the second shaft.

A golf club has a first shaft coupled to a club head, a second shaft configured to slidably engage a portion of the first shaft, a grip coupled to the second shaft, and an adjustable length shaft assembly received by the second shaft and configured to allow a portion of the first shaft to slide in relation to the second shaft in a first configuration, and to restrict a portion of the first shaft from sliding in relation to the second shaft in a second configuration. The grip is restricted from rotation about the first shaft or the second shaft as the first shaft slides in relation to the second shaft.

A golf club has a first shaft coupled to a club head, a second shaft configured to slidably engage a portion of the first shaft, a grip coupled to the second shaft, and an adjustable length shaft assembly received by the second shaft and configured to allow a portion of the first shaft to slide in relation to the second shaft in a first configuration, and to restrict a portion of the first shaft from sliding in relation to the second shaft in a second configuration. The grip is restricted from rotation about the first shaft or the second shaft as the first shaft slides in relation to the second shaft.

The present invention relates to a practice swing bat and, particularly, to a bat which is capable of, during golf swing practice, calculating and displaying swing speed, virtual driving distance of each club, etc., and transmitting the same to a terminal so as to enable management of the same. To this end, the bat of the present invention comprises a swing measurement module.

The present invention relates to a practice swing bat and, particularly, to a bat which is capable of, during golf swing practice, calculating and displaying swing speed, virtual driving distance of each club, etc., and transmitting the same to a terminal so as to enable management of the same. To this end, the bat of the present invention comprises a swing measurement module.

It is disclosed a kit for extending the shaft of a hockey stick comprising a fixing module, at least one extension module and an attachment module. The extension modules are adapted to nest one in the other and are adapted to nest in the top of the fixing module. The attachment module secures the extension modules one to the other and to the fixing module. A method for adjusting the length of a shaft of a hockey stick is also disclosed herein.

It is disclosed a kit for extending the shaft of a hockey stick comprising a fixing module, at least one extension module and an attachment module. The extension modules are adapted to nest one in the other and are adapted to nest in the top of the fixing module. The attachment module secures the extension modules one to the other and to the fixing module. A method for adjusting the length of a shaft of a hockey stick is also disclosed herein.

A device for collecting and storing playing objects is disclosed. The device comprises a handle portion for detachably connecting to a handle. The device also comprises a frame portion comprising an opening for receiving playing objects, a collecting side, a storing side, and a net attached to the frame portion and extending outwardly from the storing side of the frame portion.