Jet units for whirlpool-bath systems

Details Jet units for whirlpool-bath systems Jet units for whirlpool-bath systems

A - Human Necessities

61

H

A61H 33/02 (2006.01) A47K 3/10 (2006.01)

Patent

CA 2059646

The fixed-direction jet units (1) of a whirlpool-bath system (Figures 1 and 2) each include a nozzle (18) for sup- plying water under pressure from a tube-section (17) to an outlet (12) across an air gap (20) within a chamber (19). The unit (1) is clamped to the bath-wall (14) between a flange (16) of the outlet (12) and the unit housing (15). Issue of wa- ter from the nozzle (18) across the gap (20) into the axially- aligned stem (13) of the outlet (12), draws air into the cham- ber. (19) from an inlet pipe (21) that is coupled to a distribu- tion manifold (7) of an air-supply controller (9) (Figures 1 and 2) by an individual supply tube (8). A circumferential skirt (22) projects backwardly from the stem (13) to shroud the gap (20) over a frusto-conical nose-part (23) of the noz- zle (18), so that air is constricted to enter the gap (20) through the annular space (24) between them: The constric- tion evens out air flow around the stream of water from the nozzle (18), enhancing small-babble distribution in the stream and the consequent foaming and turbulence of the jet discharge from the outlet (12). The cross-sectional area of the pathway for air between the nozzle nose-part (23) and the skirt (22) increases towards the gag (20), but may be sub- stantially uniform.

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