The present invention relates to two integrated billiard balls for training, which include an image ball and an object ball assembled together by a connecting means and integrated through spherical contact therebetween so that, at the time of billiard training, a trainee can figure out a situation in which the trainee can hit the object ball coupled to the image ball of the training billiard balls, with a predetermined thickness, just by accurately hitting a cue ball while aiming the center of the image ball. Therefore, the present invention enables a trainee to easily practice thickness adjustment of an object ball and thus improve his or her billiard capability.

Provided is a ball that includes a plurality of panels attached together to form a hollow structure. The hollow structure includes a head portion at a first end and a tail portion at a second end. The hollow structure is also characterized by a tapered profile in a longitudinal direction, such that a diameter of the head portion is greater than a diameter of the tail portion. The ball also includes a tubular duct (i) integrated within a center of the hollow structure and (ii) extending along a length of the hollow structure.

A pivoting abdominal exercise machine is used to exercise and strengthen core muscles. The machine includes a hinged frame, a plurality of back supports, and a base stand. The plurality of back supports is connected along the hinged frame. Together, the hinged frame and the plurality of back supports are used to interact with and brace portions of the user's back as the user performs an exercise. The plurality of back supports may either be cushioned pads or rollers. The base stand is mounted to the hinged frame through an elastic pivot resistor. The elastic pivot resistor allows the user to rock, tilt, or twist about the base stand. A frame-grasping assembly is mounted to the hinged frame. The frame-grasping assembly allows the user to hold onto the device and maintain stability while performing exercises.

A sports ball (10), such as a football (12), has outer panels (14) of leather. The outer panels (14) have embossed pebbles (16) to enhance grip. Each outer panel (14) is formed by embossing the pebbles (16) on a segment (54) forming one or more of the outer panels (14) after the segment (54) has been cut from the unembossed full hide or half hide from which it comes. This provides great advantages in flexibility and consistency of manufacturing in addition to improved performance such as grip and aerodynamics.

A system and method for measuring motion properties of a movable object, such as a sporting device, wherein the movable object has an embedded magnetized unit creating a magnetic field. A measurement device, having a first magnetic field sensor positioned a known distance away from a second magnetic field sensor, is positioned in the vicinity of the movable object's trajectory, whereby the first and second magnetic field sensors output signals when the movable object passes within their respective proximities. A control module, that is responsive to the output signals created by the magnetic field sensors, is configured to record the times of output signal events. The control module is further configured to calculate motion properties, such as the speed and rate of spin, of the movable object based upon the recorded times of various sensor output events and the known distance between the first and second magnetic field sensors.

A device is provided for receiving projectiles and creating a pattern. The device includes a plurality of hoops arranged in parallel and configured to receive the projectiles. A two-dimensional grid could be providedacross a plurality of channels of the device, or on a display of the devicein order to display the projectiles received by the plurality of hoops. In some examples, projectiles may be received by a plurality of channels, and the pattern is created within the channels and is viewable through apertures across the channels. In other examples, sensors may be used to determine when a projectile has passed through one of the hoops, and indicators may be displayed in corresponding vertical columns of a two-dimensional grid on a display.

A training device for assisting a user in achieving a proper throwing motion of one or more baseball pitch types is provided. The device includes a main body with a central portion and first and second end portions provided on the upper and lower ends of the central portion to define an elongated cylindrical shape. The device can also include a guide strip provided on the exterior surface of the main body and extending vertically along the central portion. The device may by thrown by a user using the same form and mechanics as a traditional baseball and can be used to train proper throwing mechanics by allowing a user to visually identify the rotational axis of the pitch after release. The elongated shape and increased height of the device enables a user to easily identify the rotational axis and make adjustments until proper mechanics are achieved.

A device is provided for receiving projectiles and creating a pattern. The device includes a plurality of hoops arranged in parallel and configured to receive the projectiles. A two-dimensional grid could be providedacross a plurality of channels of the device, or on a display of the devicein order to display the projectiles received by the plurality of hoops. In some examples, projectiles may be received by a plurality of channels, and the pattern is created within the channels and is viewable through apertures across the channels. In other examples, sensors may be used to determine when a projectile has passed through one of the hoops, and indicators may be displayed in corresponding vertical columns of a two-dimensional grid on a display.

Disclosed is a rugby-ball sports speaker that includes a flexible protective sleeve defined with an opening and an accommodating cavity communicating with the opening. The speaker further includes at least one receiving casing defined with a receiving slot, the receiving casing being accommodated inside the accommodating cavity and resisting an inner wall of the flexible protective sleeve. The speak further includes at least one speaker assembly received inside the receiving slot and resisting an inner wall of the receiving casing. The speaker further includes a net cover covering the opening and fixedly connected to the flexible protective sleeve, the net cover sealing the receiving casing within the accommodating cavity. The technical solution of this disclosure is designed to enable the user to simultaneously enjoy the fun of throwing and kicking as well as listening to music relying solely on the rugby ball, thus augmenting the user experience.

A pitch training device used to improve the throwing technique of balls used in sports. The device includes a core and a substantially disk-shaped body that provides immediate visual feedback as to whether the device was properly thrown. The core exhibits a density greater than the density of the body, thereby mimicking the moment of inertia of many sports balls. This, in turn, allows the user of the device to improve the training techniques used to increase spin efficiency of a ball while also helping train and improve other throwing techniques.