DEVICE FOR PROPULSION OF SWIMMER UNDER WATER Russian patent published in 2007 - IPC A63B35/10 

FIELD: sport arrangements.

SUBSTANCE: device comprises propellers that rotate in opposite directions and actuated by the swimmer. The propellers are axially aligned and arranged on the housing. According to the first version, the gear wheel is connected with the shaft of the propellers and gear rack mounted inside the housing for permitting reciprocation caused by the hand and legs of the swimmer. According to the second version, the gear wheel is connected with the shaft of the propellers and gear racks for the legs and hands. The overrunning clutch is connected with the gear wheel. The housing is provided with means for securing it to the swimmer body.

EFFECT: improved design.

5 cl, 6 dwg