Abstract: A ball bat includes an outer shell and an insert positioned in a ball striking area of the outer shell. The insert may include a tube element and one or more spacer elements positioned to form a gap between the tube element and the outer shell along at least a portion of a length of the tube element. In some embodiments, the insert or the gap may extend along only the length of the ball striking area. The outer shell may provide some compliance during a hit to create a trampoline effect, while the insert may provide a backstop to limit radial deflection of the outer shell.

Abstract: An interchangeable golf club grip assembly is disclosed that includes a cylindrical inner sleeve member and an outer sleeve member, wherein the inner sleeve member is configured to couple and fasten with a shaft of a golf club and includes a threaded aperture and a plurality of alignment and retention ribs thereon. The outer sleeve member is disposed over the inner sleeve member in a retained configuration using the plurality of ribs and also includes a threaded aperture. The inner and outer sleeve member are fastened together with a fastener that prevents longitudinal movement of the outer sleeve member with respect to the inner sleeve member.

Abstract: Grip with electronic system and exterior venting. In an embodiment, the grip comprises a main body comprising a shaft cavity extending from an open first end to a second end. The grip also comprises an end cap that is attached to the second end of the main body. The end cap comprises a base adjacent to the second end of the main body, which comprises one or more vent openings to one or more vent paths. The end cap also comprises a side wall extending from the base and defining an interior cavity. The end cap further comprises one or more vent paths. Each vent path provides fluid communication between at least one of the vent opening(s) and at least one of one or more vent holes in an exterior surface of the side wall. An electronic system is positioned within the interior cavity of the end cap.

Abstract: A ball racket includes a head frame for racket stringing, a shaft unit including first and second tubes non-rotatably fitted to each other to be moved relative to each other along an axis, an actuator disposed within the first tube and having an actuating end and a shank body, an expandable shell disposed between the actuating end and the first tube, and a force transmitting mechanism disposed between the expandable shell and the first tube. Counterclockwise rotation of the actuating end causes the expandable shell and thus the first tube to expand radially so as to generate increased friction between the first and second tubes to thereby guard against relative axial movement between the first and second tubes. Clockwise rotation of the actuating end permits the first tube to axially move relative to the second tube so as to adjust the length of the shaft unit.

Abstract: Hand interfaces (11), (111), (188), (201a), (201b), (202a), (202b), (204), (211), (311), (411), (511), (611), (711), (811), and (911), which improve the performance of many items including: racquets for tennis and other sports; rotary hand tools such as screwdrivers; hockey sticks; and kayak oars. Relative rotation between one of the hand interfaces and a corresponding implement is selectively stopped, and torque is selectively transmitted between the hand interface and the implement, when a user squeezes the implement's handle. The hand interface can be rotated in either direction on the implement, and relative movement stopped at an infinite number of positions. The hand interface amplifies the opposing effects of either a firm grasp or a relaxed grasp.

Abstract: A slip control article including a backing layer having a first surface with an array of at least 100 upstanding stems per square inch and a second surface. At least a portion of the upstanding stems is an elastomeric material and the stems have an aspect ratio of at least 1.25. The first surface has a static coefficient of friction when dry of at least 0.6 and a static coefficient of friction when wet within 20% of the static coefficient of friction when dry. The first surface has a peel strength and a tensile strength of substantially zero when engaged with another slip control article. The first surface has a relatively high shear strength when engaged with another slip control article. The high shear forces are due primarily to the frictional properties of the elastomeric materials, not a mechanical interlock of the stems, such as on a mechanical fastener.

Abstract: A game racket handle is adjustable in length and is composed of a main body, a jacket, and a bolt. The main body is fastened at one end thereof with a game racket shaft and provided at other end thereof with a threaded hole. The jacket has a closed end and an open end. The closed end is provided with a through hole. The jacket is movably fitted over the main body such that the jacket can displace along the direction of the longitudinal axis of the main body. The bolt is fastened pivotally with the closed end of the jacket and engaged with the threaded hole of the main body for regulating the position adjustment of the jacket in relation to the main body.

Abstract: The games racket comprises a head (1) and a shaft (2), the shaft being fitted with a separable extension module (8) bearing a hand grip. The two components (2, 8) are locked rigidly together by a wedging action. Preferably the shaft (2) is provided at its free end with legs (4, 5) defining a slot (6) which has wedge profiles (7) formed in it. The extension module (8) is push fitted over the legs (4, 5) and a locking device (12, 13) is inserted into the slot (6), the locking device having a wedging element (13) which bears against the wedge profiles (7). Various extension modules (8) can be stocked at the point of sale of the racket in order to provide rackets of differing lengths and/or grip sizes.

Abstract: A game stick, such as a hockey stick, has a configured and adjustable grip. The configured grip has a triangular cross section with three sides and three edges. The grip is oriented with respect to a striking portion of the stick. The stick may also have a configured handle. The grip and handle may have different configurations and different orientations with respect to the striking portion. The grip and handle are detachably or adjustably coupled to the striking portion so that the orientation of the grip and/or handle may be reversed or changed.

Abstract: A light-weight handle is disclosed for use on new or existing golf clubs regardless of their shaft material. The handle comprises an elongated tubular member having a radially expanded gripping surface and a way for attaching the handle to a golf club shaft.

Abstract: An adjustable apparatus handle having a shaft, a grip sleeved onto the shaft, and a butt cap fixedly fastened to one end of the grip, wherein the shaft has a front part of polygonal cross section, a rear part of reduced diameter, and a piston endpiece at one end of the rear part remote from the front part; the grip has a front part fitting over the front part of the shaft, a rear part fitting over the rear part of the shaft and defining an air chamber between the piston endpiece of the shaft and the butt cap; the butt cap having an air hole disposed in communication between the air chamber and the atmosphere, and a control valve moved in the air hole between a first position where the air hole is closed and the air chamber is maintained in an air tight status to stop the shaft from an axial movement in the grip, and a second position where the air hole is opened and air is allowed to pass between the air chamber and the atmosphere, permitting the shaft to be moved axially in the grip.

Abstract: A hockey stick with a handle that will permit rotation of its shaft to angularly orient its blade relative to a playing surface for elevational control over a hockey puck. All hockey players have different wrist, arm and shoulder variables. In order to align the stick to the player for more natural and even wrist rotation from the 12 o'clock position. It tailors the grip of the handle to the individual's actual anatomy. By using a ratchet system, it enables the handle to rotate to the lie of the player's wrist before being closed and locked into place.

Abstract: A racket having a handle with a substantially planar striking surface, a neck having one end connected to the substantially planar striking surface. The racket further comprising a handle connected to another end of the neck, wherein the handle is rotatable about an axis to one or more predetermined positions.

Abstract: A racket having a handle with a substantially planar striking surface, a neck having one end connected to the substantially planar striking surface. The racket further comprising a handle connected to another end of the neck, wherein the handle is rotatable about an axis to one or more predetermined positions.

Abstract: An improved gripping sleeve for enhancing a hand grip of a shank portion of an object, which provides a tube member having interior and exterior wall surfaces in which the interior wall surface is for engaging the shank portion of the object and an abrasive surface disposed on the interior wall surface of said tube member; including a method for gripping a shank portion of an object having the steps of providing a gripping sleeve (10) comprising a tube member having interior and exterior wall surfaces and having an abrasive surface disposed on said interior wall surface, engaging the interior wall surface of said tube member to the shank portion of the object and gripping the exterior wall surface (20) of the tube member to exert a force (F) onto the shank portion of the object through the interior wall surface of the tube member.