VACUUM NOZZLE FOR HYDROMASSAGE Russian patent published in 2019 - IPC A61H9/00 

FIELD: satisfaction of human vital needs.

SUBSTANCE: vacuum nozzle is intended for underwater vacuum-vortex massage and comprises housing (1), inside which there is open on one side cavity (2), limited by bottom (3) on opposite side and side surface (4), which is surface of rotation with generatrix in the form of a parabola. Cavity (2) in the direction from bottom (3) to its open side contains series-arranged tapered part (5) forming vortex chamber (6), and expanding part (7) forming an outlet neck. Through channel (1) passes channel (8) passing into vortex chamber (6) for supply of water jet into vortex chamber at a tangent to its surface. From bottom (3) of cavity (2) coaxial surface (4) of rotation protrusion (10) in form of a hemisphere, height (H) which is greater than distance (h) in axial direction from bottom (3) of cavity to center of channel (8) in point of its outlet into vortex chamber (6).

EFFECT: high efficiency of packing due to uniform outflow of water in all directions due to under nozzles and increasing vacuum created at operation at preset water pressure.

5 cl, 2 dwg