Patent ID: 6052844
Filing Date: 2000-04-25
Classification: A61H

Abstract:
A whirlpool bath assembly comprising:a venturi jet unit including a main body having an elongate bore between a water supply inlet and a combined water and air supply outlet, a venturi throat of restricted cross-sectional area within the bore, an air duct feeding between an air inlet and outlet in the venturi throat, venturi mounting means for securing the main body to a bath sidewall, whereby the height of all surfaces contactable by water and over which water would flow on shutting off operation of the assembly reduce continuously in the direction of such flow without forming any water retaining pockets,a pump recirculation unit having an outlet and an inlet the surfaces of the pump being so arranged so that water will flow on shutoff by gravity from outlet to inlet without lodging in any recesses,a system suction pipe having an inlet for mounting in the bath and an outlet for feeding the pump inlet, the pipe sloping downwards from inlet to outlet without the formation of water retaining recesses,a system feed pipe between the water supply inlet of the venturi jet unit and the outlet of the pump recirculation unit, the feed pipe configured to drain into either the venturi unit or the pump recirculation unit on shutting off of the whirlpool assembly, the configuration being such as to further avoid the formation of water retaining recesses,a drain-off valve connected to the pump recirculation unit, anda waste-water pipe connecting the drain off valve to a bath waste-water drain in the waste-water pipe sloping downwardly from the drain-off valve to the bath waste-water drain without the formation of water retaining recesses.