A hand cover apparatus with a tensioning mechanism that tensions a portion of the apparatus such that it is urged to retract to an open position, freeing a portion of the user's hand. Said system has one stationary piece and at least one additional piece that moves relative to it and can be triggered to free the hand by using only the hand to which it is mounted.

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.

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.

A resistance kickboard attachment is disclosed. When attached to a kickboard, the resistance kickboard attachment adds resistance while swimming with the kickboard. The resistance kickboard attachment includes a resistance pocket, with variable resistance provided by an adjustment of a rear aperture of the resistance pocket. The resistance kickboard attachment attaches to the kickboard with a transverse and a longitudinal strap. The transverse strap includes an adjustment on either side of the longitudinal strap which allows the longitudinal strap to be centered on the kickboard.

Embodiments of footwear to optimize propulsion while swimming in the water and walking on land, in particular, amphibious footwear capable of duty on land and in the water as well as versions that are optimized for predominantly use in the water for swimming. The exoskeleton amphibious footwear reduces metabolic demand of walking and swimming while also improving gait speed and swim speed. This is accomplished by assisting plantar flexion during land mode, and assisting dorsiflexion in water mode.

The present disclosure provides aqueous propulsion devices for prostheses. An aqueous propulsion device may comprise at least one substantially flat protruding extension member configured to extend from an outer surface of a lower-limb prosthesis. In some aspects, the aqueous propulsion device may be configured to be at least temporarily secured to a lower-limb prosthesis via one or more attachment mechanisms. In some implementations, the aqueous propulsion device may comprise a plurality of protruding extension members. In some embodiments, the aqueous propulsion device may comprise two protruding extension members configured on opposing lateral sides of the aqueous propulsion device. In some aspects, securing the aqueous propulsion device to a lower-limb prosthesis may enable a user to swim or otherwise move through a body of water by exerting a pushing force on the water that propels the user in a desired direction when the user kicks or engages in a similar movement.

The present disclosure provides aqueous propulsion devices for prostheses. An aqueous propulsion device may comprise at least one substantially flat protruding extension member configured to extend from an outer surface of a lower-limb prosthesis. In some aspects, the aqueous propulsion device may be configured to be at least temporarily secured to a lower-limb prosthesis via one or more attachment mechanisms. In some implementations, the aqueous propulsion device may comprise a plurality of protruding extension members. In some embodiments, the aqueous propulsion device may comprise two protruding extension members configured on opposing lateral sides of the aqueous propulsion device. In some aspects, securing the aqueous propulsion device to a lower-limb prosthesis may enable a user to swim or otherwise move through a body of water by exerting a pushing force on the water that propels the user in a desired direction when the user kicks or engages in a similar movement.

The swimming fin for the disabled includes a flipper pivotally attached to a lower end of a post, the post having a handle on the end opposite the flipper. A strap is pivotally attached to a middle section of the post for securing the post to a user's leg. A user attaches the device to themselves by inserting their foot in the flipper, connecting the strap to their leg, and gripping the handle. When in the water, pushing the handle out from a user's chest and then pulling the handle back to the chest will cause a motion in the user's leg similar to a leg kick, thus allowing a user with limited or no function in their legs to propel him/herself in the water.

The swimming fin for the disabled includes a flipper pivotally attached to a lower end of a post, the post having a handle on the end opposite the flipper. A strap is pivotally attached to a middle section of the post for securing the post to a user's leg. A user attaches the device to themselves by inserting their foot in the flipper, connecting the strap to their leg, and gripping the handle. When in the water, pushing the handle out from a user's chest and then pulling the handle back to the chest will cause a motion in the user's leg similar to a leg kick, thus allowing a user with limited or no function in their legs to propel him/herself in the water.

A flotation device, particularly suitable for use as a pull buoy or a kickboard is described. The flotation device can include a flotation element and a stem element, which extends from an inner surface of the flotation element. A holding mechanism can be located adjacent to the second end of the stem element. The stem element and holding mechanism can be configured to enable a user to hold onto the flotation device at a point below the surface of the water for use as a kickboard or enable a user to secure the stem element of the flotation device between his/her legs for use as a pull buoy. An embodiment of the stem element can be tapered, which can create forces that assist the user in using the flotation device as either a pull buoy or a kickboard.