The present invention relates to a ball game racket frame with improved torsional behavior.

Provided is a system for robotic collaboration. A first robotic device includes a tangible, non-transitory, machine readable medium storing instructions that when executed by a processor of the first robotic device effectuates first operations including: receiving first information from a processor of a second robotic device; actuating the first robotic device to execute a first action based on the first information; and transmitting second information to the processor of the second robotic device. The second robotic device includes a tangible, non-transitory, machine readable medium storing instructions that when executed by the processor of the second robotic device effectuates second operations including: receiving the second information transmitted from the processor of the first robotic device; actuating the second robotic device to execute a second action based on the second information; and transmitting third information to the processor of the first robotic device.

A ball collection apparatus constituted of: a control circuitry; a body; motors; wheels arranged to rotate responsive to the motors, the body arranged to move along a surface responsive to the rotation of the plurality of wheels; a collection compartment arranged to maintain a ball within a predetermined area in relation to the body; a ball input port in communication with the collection compartment; and a ball ejector arranged to eject the ball from the collection compartment, wherein the control circuitry is arranged to: receive information regarding the location of the ball; responsive to the received information, control the at least one motor to advance the body towards the location of the ball, the collection compartment arranged to collect the ball through the ball input port; and control the ball ejector to eject the ball from the collection compartment and propel the ejected ball towards a predetermined target area.

A tennis ball target device is provided that may provide for at least one target element having lettering, a design, or other such visual indicia that may indicate where a user might strike the target with a tennis ball. In some embodiments, the target element may be hingedly connected at its base to a weighted base element, which in some embodiments provides the counter-force to the impact created by the tennis ball. In some embodiments, different weighted bases may be provided or associated with the present invention.

The invention refers to the equipment of the training rink for floorball, manufacturing of exerciser structural element, applying concept of tennis racket stringing. Proposed design of subsidiary element for floorball rink arrangement characterised with that it is made as latticework formed by: two parallel end plates; several threaded rods as stiffening members; two elastic string structures disposed in two parallel planes, at that each of it presents one side of mentioned latticework and provided with: —holes for fastening threaded rods which assure rigidity and load bearing capacity of the subsidiary element frame structure; —holes for criss-cross stringing in two parallel planes and string fastening at mentioned end plates independently one from another.

A ball assembly for a swing trainer that withstands repeated hits with forces applied by professional athletes. The ball assembly comprises a ball, a wire rope, a ball stud swaged to one end of the wire rope and a connector sleeve swaged to the other end of the wire rope. A whole is drilled through the exact center of the ball and wire threaded therethrough. After the ball stud and connector sleeves are swaged to the ends of the wire rope, the ball stud is pressed into the hole in the ball. The wire rope may be coated to extend life.

A shoe has a sensor system operably connected to a communication port. Performance data is collected by the system and can be transferred for further use via the communication port. The shoe may contain an electronic module configured to gather data from the sensors. The module may also transmit the data to an external device for further processing. Users can use the collected data for a variety of different uses or applications.

A cart assembly that is designed to hold and transport one or more ball hoppers. The ball hoppers have baskets that are supported by legs. The baskets are configured to hold some type of ball, such as a tennis ball or a golf ball. The cart assembly can transport the ball hoppers as they are standing on legs. The cart assembly has a platform that is supported by wheels. The wheels provide the platform with the ability to roll. Receptacles are present on the platform. The receptacles are sized, shaped and positioned to receive the legs of a ball hopper when the ball hopper is placed on the platform. Once a ball hopper is attached to the platform, the ball hopper becomes part of the cart assembly and can roll with the cart assembly from point to point.

A shock absorbing structure of a racket contains: a head and an absorption member matingly contacting with an internal fence of the head. The absorption member is a hollowly tubular structure and covers the internal fence totally. When the head is made of carbon-fiber composite material, the absorption member is made of any one of Thermoplastic Elastomer (TPE), Thermoplastic Rubber (TPR), rubber, Hydrogel, and Thermoplastic Polyurethane (TPU). When the head is made of metal or aluminum alloy, the absorption member is made of any one of Thermosetting Elastomers, Thermoplastic Elastomer (TPE), Thermoplastic Rubber (TPR), rubber, Hydrogel, and Thermoplastic Polyurethane (TPU). When the head and the absorption member are made of different materials, an amplitude of the head is different from an amplitude of the absorption member, and the head interferes the absorption member, thus absorbing vibration.

An active suspension orthotic support system is disclosed. The suspension orthotic support system comprises at least one variable resistance beam extending from a heel section to a mid-arch section of the footwear, wherein rotation of the variable resistance beam from a first position to a second position causes a resistance provided by the variable resistance beam to vary between a minimum resistance to a maximum resistance.