Abstract: A golf club head includes a body member having a length dimension, a height dimension, a breadth dimension, a center-of-gravity and a face-squared centerline. The body member includes a channel having an inlet, an outlet and a throughbore extending through the body member from the inlet to the outlet. The inlet is located to a heel-side of the centerline of the body member and the outlet is located to a toe-side of the centerline of the body member. A golf club including the golf club head is also provided.

Abstract: Fairway wood-type golf clubs as described herein may include: (a) a club head with a volume of at least 300 cc; (b) a shaft member attached to the club head, wherein the golf club has a length between 37 and 43 inches; and (c) a grip or handle member attached to the shaft member. The club head may further include: (1) a ball striking face, wherein the ball striking face has a loft angle between 12 and 32 degrees; and (2) a club head body engaged or integrally formed with the ball striking face, with a sole portion that includes a ground-engaging surface.

Abstract: The invention relates generally to golf clubs and golf club heads that enable users, club fitters, club manufacturers, and the like to selectively control, change, and customize aspects of the “sound” associated with the golf club and golf club head when it strikes a golf ball. Golf clubs and golf club heads according to this invention may include: a) a club head body; b) a ball striking face engaged with or integrally formed as part of the club head body; c) a hosel member engaged with or integrally formed as at least a portion of the club head; and d) means for changing a sound emanated by the club head when a golf ball contacts the ball striking face. A user may change the vibrational characteristics associated with the club head when a golf ball is struck, thereby changing the sound emanating from the club head when a golf ball is struck.

Abstract: Golf club heads are releasably engaged with shafts so that the club heads and shafts can be readily interchanged and/or so that the shaft position with respect to the club head can be readily changed. Assemblies for connecting the club head and shaft may include: (a) a shaft engaging member including a rotation-inhibiting structure; (b) a club head engaging member including a shaft-receiving chamber and a retaining structure for engaging the rotation-inhibiting structure; and (c) a securing system for releasably securing the shaft engaging member with respect to the club head engaging member. The club head and shaft may be changed by releasing the securing system and exchanging the original parts with different parts. Furthermore, the shaft may be bent or otherwise extend at an angle from the shaft engaging member so as to allow adjustment of the shaft position with respect to the club head.

Abstract: Golf club heads are releasably engaged with shafts so that the club heads and shafts can be readily interchanged and/or so that the shaft position with respect to the club head can be readily changed. Assemblies for connecting the club head and shaft may include: a shaft adapter, a shaft retainer, and a club head having an interior chamber. The club head and shaft may be changed by releasing the securing system and exchanging the original parts with different parts. Furthermore, the shaft may be bent or otherwise extend at an angle from the shaft adapter so as to allow adjustment of the shaft position with respect to the club head.

Abstract: Golf club heads having sensors configured to measure one or more swing parameters are provided. The golf club head may include several gyroscopes and accelerometers. In one embodiment, the club head contains three gyroscopes that measure angular rate data along different orthogonal axes. At least one gyroscope may an analog gyroscope. Accelerometers may provide data regarding the three orthogonal axes associated with the gyroscopes. The club head may further include software and/or hardware that perform computer-executed methods for determining one or more swing parameters. Exemplary club heads may include a display device for displaying an output of the swing parameter(s). Further aspects of the invention relate to novel methods and algorithms for calculating measurements relating to the swing parameters.

Abstract: The invention relates generally to golf clubs and golf club heads that enable users, club fitters, club manufacturers, and the like to selectively control, change, and customize aspects of the “sound” associated with the golf club and golf club head when it strikes a golf ball. Golf clubs and golf club heads according to this invention may include: a) a club head body; b) a ball striking face engaged with or integrally formed as part of the club head body; c) a hosel member engaged with or integrally formed as at least a portion of the club head; and d) means for changing a sound emanated by the club head when a golf ball contacts the ball striking face. A user may change the vibrational characteristics associated with the club head when a golf ball is struck, thereby changing the sound emanating from the club head when a golf ball is struck.

Abstract: Golf club heads having sensors configured to measure one or more swing parameters are provided. The golf club head may include several gyroscopes and accelerometers. In one embodiment, the club head contains three gyroscopes that measure angular rate data along different orthogonal axes. At least one gyroscope may an analog gyroscope. Accelerometers may provide data regarding the three orthogonal axes associated with the gyroscopes. The club head may further include software and/or hardware that perform computer-executed methods for determining one or more swing parameters. Exemplary club heads may include a display device for displaying an output of the swing parameter(s). Further aspects of the invention relate to novel methods and algorithms for calculating measurements relating to the swing parameters.

Abstract: Wood-type golf clubs as described herein may include: (a) a hosel to receive a golf club shaft; (b) a club head; and (c) a ball striking face. The club head include may include: a plurality of weights, a plurality of tubes, and an exterior cover structure (e.g., an exterior skin) that covers at least a portion of the plurality of weights and at least a portion of the plurality of tubes, and wherein the exterior cover structure defines the shape of the club head. Additionally, the ball striking face may be engaged with at least two of the plurality of weights and/or at least two of the tubes. The plurality of weights may include a first weight, a second weight, a third weight, and a fourth weight that are all engaged with the striking face.

Abstract: Golf club heads are releasably engaged with shafts so they may be readily interchanged and/or so that the shaft orientation with respect to the club head can be readily changed. Assemblies for connecting the club head and shaft may include a shaft adapter and a head adapter. The shaft adapter may have an exterior surface extending along a first axis and a bore having a cross-sectional shape along a second axis configured to attach to a shaft member. The second end of the shaft adapter has a cross-sectional shape of a regular polygon. The head adapter has a first end and a second end along a first axis and a bore having a shape of a regular polygon along a second axis that is shaped to receive the second end of the shaft adapter in a plurality of orientations.

Abstract: Golf clubs and golf club heads having a weight member that is configurable in multiple positions to alter the performance characteristics of the golf club head are presented. In some examples, the weight member may be arranged in a sole of the golf club head and may include ends having different weighting characteristics. For instance, one end may be heavier or denser than another end of the weight member. The difference in weight characteristics may be due to different materials used to form the different ends, different construction of the ends, and the like. The position of the weight member may be adjusted to alter the performance characteristics of the golf club head. For instance, the weight member may be removed and rotated to position a heavier end where a lighter end was previously positioned.

Abstract: A ball striking device, such as a golf club, includes a head with a face having the ball striking surface located at a front of the head and a plurality of parallel face grooves extending laterally across at least a portion of the ball striking surface, a body connected to the face and extending rearward from the face, and an indicator on the ball striking surface of the face. The indicator is located in an area between the face grooves and proximate a lateral center of the ball striking surface, and includes at least one indent in the ball striking surface. The indent has a depth that is substantially less than a depth of any of the face grooves. Methods associated with such ball striking devices are also provided.

Abstract: Golf club heads are releasably engaged with shafts so that the club heads and shafts can be readily interchanged and/or so that the shaft position with respect to the club head can be readily changed. Assemblies for connecting the club head and shaft may include: a shaft adapter, a shaft retainer, and a club head having an interior chamber. The club head and shaft may be changed by releasing the securing system and exchanging the original parts with different parts. Furthermore, the shaft may be bent or otherwise extend at an angle from the shaft adapter so as to allow adjustment of the shaft position with respect to the club head.

Abstract: Golf club heads having sensors configured to measure one or more swing parameters are provided. The golf club head may include several gyroscopes and accelerometers. In one embodiment, the club head contains three gyroscopes that measure angular rate data along different orthogonal axes. At least one gyroscope may an analog gyroscope. Accelerometers may provide data regarding the three orthogonal axes associated with the gyroscopes. The club head may further include software and/or hardware that perform computer-executed methods for determining one or more swing parameters. Exemplary club heads may include a display device for displaying an output of the swing parameter(s). Further aspects of the invention relate to novel methods and algorithms for calculating measurements relating to the swing parameters.

Abstract: Golf club heads are releasably engaged with shafts so that the club heads and shafts can be readily interchanged and/or so that the shaft position with respect to the club head can be readily changed. Assemblies for connecting the club head and shaft may include: (a) a shaft engaging member including a rotation-inhibiting structure; (b) a club head engaging member including a shaft-receiving chamber and a retaining structure for engaging the rotation-inhibiting structure; and (c) a securing system for releasably securing the shaft engaging member with respect to the club head engaging member. The club head and shaft may be changed by releasing the securing system and exchanging the original parts with different parts. Furthermore, the shaft may be bent or otherwise extend at an angle from the shaft engaging member so as to allow adjustment of the shaft position with respect to the club head.

Abstract: A fitting system cart is provided for golf club heads and shafts which have releasable connections between the golf club head and the shaft. The fitting system cart includes a base with a back panel, two side panels, and a top panel which all define an interior portion, a shaft container, and a set of golf club head cases. The fitting system cart may include two door panels connected to the base and movable between an open and closed position. The fitting system cart may include a set of cases for carrying golf club heads. The cases may have a bottom portion for holding golf club heads and a top portion connected to the bottom portion, wherein the top portion rotates between an open and a closed position. The shaft container may have a configuration wherein the shaft container is closed, and a configuration wherein the shaft container is open.

Abstract: Fairway wood-type golf clubs as described herein may include: (a) a club head with a volume of at least 300 cc; (b) a shaft member attached to the club head, wherein the golf club has a length between 37 and 43 inches; and (c) a grip or handle member attached to the shaft member. The club head may further include: (1) a ball striking face, wherein the ball striking face has a loft angle between 12 and 32 degrees; and (2) a club head body engaged or integrally formed with the ball striking face, with a sole portion that includes a ground-engaging surface.

Abstract: A golf club head includes a body member having a length dimension, a height dimension, a breadth dimension, a center-of-gravity and a face-squared centerline. The body member includes a channel having an inlet, an outlet and a throughbore extending through the body member from the inlet to the outlet. The inlet is located to a heel-side of the centerline of the body member and the outlet is located to a toe-side of the centerline of the body member. A golf club including the golf club head is also provided.

Abstract: A ball striking device, such as a golf club, includes a head with a face having a ball-striking surface configured for striking a ball, a body connected to the face, and at least one weight element connected to the body. The head has a total weight that is higher than a target weight of the head, and the at least one weight element is configured to be at least partially removed by a material removal technique to lower the total weight of the head to approximately equal the target weight. The at least one weight element may be integrally connected to the body, such as being integrally formed with at least a portion of the body. The material removal technique may constitute milling, machining, or other material removal techniques or combination of such techniques.

Abstract: Golf club heads are releasably engaged with shafts so that the club heads and shafts can be readily interchanged and/or so that the shaft position with respect to the club head can be readily changed. Assemblies for connecting the club head and shaft may include: a shaft adapter, a shaft retainer, and a club head having an interior chamber. The club head and shaft may be changed by releasing the securing system and exchanging the original parts with different parts. Furthermore, the shaft may be bent or otherwise extend at an angle from the shaft adapter so as to allow adjustment of the shaft position with respect to the club head.