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: A ball striking device, such as a golf club head, has a head that includes a face configured for striking a ball and a body connected to the face, the body being adapted for connection of a shaft proximate a heel thereof. The face has a thickened portion including an annular tapered area that tapers in thickness between an upper boundary and a lower boundary and encloses an elevated area bounded by the upper boundary. The upper and/or lower boundary defines a shape having two lobes, each with an outer edge with a convex profile, and a connecting portion extending between the lobes, such that the connecting portion is defined by two outer edges extending between the outer edges of the lobes, wherein at least one of the outer edges of the connecting portion has a concave outer profile.

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: A ball striking device includes a ball striking plate having a front surface configured to strike a ball and a rear surface opposite the front surface. The ball striking plate has a desired-contact region and a perimeter. One or more spoke-like reinforcement ribs may be located on the rear surface and may radiate away from the desired-contact region toward the perimeter. At least one of the spoke-like reinforcement ribs may be located in an upper-toe quadrant or in an upper-heel quadrant of the rear surface. One or more encircling reinforcement ribs may be located on the rear surface. The one or more encircling reinforcement ribs may be at least partially encircling the desired-contact region. A thickened portion of the ball striking plate may be positioned behind the desired-contact region of the ball striking plate. The ball striking device may be a golf club head.

Abstract: A ball striking device, such as a golf club, includes a head that includes a face having a ball striking surface configured for striking a ball and a body connected to the face and extending rearward from the face. A face member formed primarily of a metallic material forms the face, and a body member is connected to the face member and extends rearward from the face member to form at least a portion of the body. The body member is formed at least partially of a polymer material, and has a doped portion containing a doping material dispersed within the polymer material. The doping material may have a different density than the polymer material, such that the doped portion has a different density than the portions of the body member not containing the doping material. A co-molding method may be used to form the ball striking device.

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 present invention addresses the development of software applications for multiple domains and users. The application framework of the present invention includes a collection of mutually compatible software components, technologies and capabilities that can be assembled using object-oriented techniques to build custom software applications.

Abstract: A golf club sleeve for use with various golf club structures is presented. The golf club sleeve may have an airfoil shaped cross section and may extend over at least a portion of the shaft of the golf club to reduce drag associated with the shaft during a golf swing, thereby increasing swing speed. The golf club sleeve may be rotatable relative to the shaft of the golf club to orient itself during a swing in order to improve air flow over the sleeve.

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 present invention addresses the development of software applications for multiple domains and users. The application framework of the present invention includes a collection of mutually compatible software components, technologies and capabilities that can be assembled using object-oriented techniques to build custom software applications.

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 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: A ball striking device, such as a golf club head, has a head that includes a face configured for striking a ball and a body connected to the face, the body being adapted for connection of a shaft proximate a heel thereof. The face has a thickened portion including an annular tapered area that tapers in thickness between an upper boundary and a lower boundary and encloses an elevated area bounded by the upper boundary. The upper and/or lower boundary defines a shape having two lobes, each with an outer edge with a convex profile, and a connecting portion extending between the lobes, such that the connecting portion is defined by two outer edges extending between the outer edges of the lobes, wherein at least one of the outer edges of the connecting portion has a concave outer profile.

Abstract: A golf club sleeve for use with various golf club structures is presented. The golf club sleeve may have an airfoil shaped cross section and may extend over at least a portion of the shaft of the golf club to reduce drag associated with the shaft during a golf swing, thereby increasing swing speed. The golf club sleeve may be rotatable relative to the shaft of the golf club to orient itself during a swing in order to improve air flow over the sleeve.

Abstract: A golf club sleeve for use with various golf club structures is presented. The golf club sleeve may have an airfoil shaped cross section and may extend over at least a portion of the shaft of the golf club to reduce drag associated with the shaft during a golf swing, thereby increasing swing speed. The golf club sleeve may be rotatable relative to the shaft of the golf club to orient itself during a swing in order to improve air flow over the sleeve.

Abstract: A golf club sleeve for use with various golf club structures is presented. The golf club sleeve may have an airfoil shaped cross section and may extend over at least a portion of the shaft of the golf club to reduce drag associated with the shaft during a golf swing, thereby increasing swing speed. The golf club sleeve may be rotatable relative to the shaft of the golf club to orient itself during a swing in order to improve air flow over the sleeve.

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 present invention addresses the development of software applications for multiple domains and users. The application framework of the present invention includes a collection of mutually compatible software components, technologies and capabilities that can be assembled using object-oriented techniques to build custom software applications.