The invention relates to a propulsion device, in particular to an underwater propulsion device for divers (1) and swimmers comprising one or several drives (2) provided with electric motors (4) and means (3) for fixing the drives (2) to the legs or arms of the diver (1) or swimmer, wherein the electric motors (4) are provided with a sump cooling, with the electric motors (4) being arranged in waterproof housings (5) and each waterproof housing (5) only being partially filled with a cooling liquid. By arranging the drives (2) on the extremities of the diver (1) or swimmer, the flexibility and mobility are significantly increased; at the same time, the provision of a sump cooling system improves heat dissipation and thus increases the power density.

An apparatus to quickly position a start assist device for backstroke swimmers and remove said start assist device once the apparatus detects or is signaled that the swimmer has left to prevent injuries and obstructions caused by the start assist device. A mechanical embodiment of such an apparatus and a motorized embodiment of such an apparatus with a data input system to position the start assist device according to the individual swimmers needs and means to signal the start event are disclosed.

The present invention is an apparatus for head wear comprising a swimming cap portion that is breathable, and protects the hair and scalp of the user from water and other watery substance(s); and a wig portion that has the versatility/appearance of natural hair, and retains a desired style even after multiple use.

A wave pool and wave generating mechanism are disclosed. The wave pool includes a bathymetry that includes a dynamically shapeable reef along a length or circumference of a channel that defines the wave pool. The wave generating mechanism includes a foil that has a shape for bi-directionality based on an adjustment of a yaw angle of the foil. The foil can be further controlled to increase or decrease certain surface areas or other angles of interacting with water in the wave pool.

A water floating device that offers support for the head or neck of a user when swimming or practicing water exercises. The floating support device includes a unitary piece body made of a floating and waterproof material. The unitary piece body has a U-shape including a curved central section having a first leg on a first end and a second leg on a second end. The first leg and the second leg project from the curved central section. The first leg and the second leg angle inwardly to one another.

Wearable electronic devices that are designed to be worn on the head of a user while the user is swimming can determine swimming strokes and swimming performances of the user accurately using motion sensors. Using a sound speaker, the wearable electronic device can play music and provide audio feedback to the swimmer. By comparing the swimming performance of the swimmer wearing the device with previously recorded swimming data, the wearable electronic device can provide audio comparison results to the swimmer while the swimmer is swimming in water. To improve water resistance, magnetic switches are utilized as selection switches. The wearable electronic device can also support similar functions for other sports and physical activities.

This presently disclosed subject matter is directed to a bi-directional toy configured to be used as a trampoline and further to be used, upon turning said bi-directional toy upside down, in at least one of the following functions: a playpen-like device, a water pool, and a sphere pool. The toy comprises at least a frame with a plurality of legs configured to elevate the trampoline from a base surface; a bounce mat configured to allow usage of the toy as a trampoline; and the encircling member configured to be attached to the legs for creating a delimited area for use in at least one of the functions.

An underwater striking bag device includes a bag having an annular upper compartment disposed in an upper section of the bag and receiving air therein, a neck extending through the upper section and communicating with a lower compartment receiving water therein, a weight in the bottom section, a removable cap connected to the neck, an air valve connected to the annular upper compartment to provide for filling air into the annular upper compartment, at least one handle connected to the bag for assisting in filling and removal of water into the lower compartment as well as exercising by grabbing the handles and pushing, pulling, and lifting the bag during a workout.

An underwater striking bag device includes a bag having an annular upper compartment disposed in an upper section of the bag and receiving air therein, a neck extending through the upper section and communicating with a lower compartment receiving water therein, a weight in the bottom section, a removable cap connected to the neck, an air valve connected to the annular upper compartment to provide for filling air into the annular upper compartment, at least one handle connected to the bag for assisting in filling and removal of water into the lower compartment as well as exercising by grabbing the handles and pushing, pulling, and lifting the bag during a workout.

A sporting equipment is disclosed. The sporting equipment may include a barrel, an action connected to a base end of the barrel, and a stock connected to the action opposite the barrel. At least two of the barrel, the action, and the stock are fabricated from a plurality of fibers.