Drain valve assembly and method of cleansing

Details Drain valve assembly and method of cleansing Drain valve assembly and method of cleansing

1999-08-16

2000-09-26

Douglas, Steven O.

Baths, closets, sinks, and spittoons

Tubs

Means for agitating or circulating water in a tub

45414, A61H 3306

Patent

active

061227757

ABSTRACT:
A drain valve assembly for use with an air bath including an air distribution system and a method of cleansing channels of an air distribution system for a bath vessel. The drain valve assembly is located within an opening in the bath vessel to control the flow of water from the bath vessel to an effluent drain, to control the flow of air and water from the air distribution system to an effluent drain and to maintain a fluid pressure within the air distribution system. The drain valve assembly includes a valve housing for extending between the bath vessel and a fluid waste pipe connected to the effluent drain. The valve housing has an upper opening for positioning proximate the bath vessel and a lower opening for receiving fluid from the air bath distribution system. The drain valve assembly also includes a stopper having first and second vertically aligned plungers. The stopper is secured within the valve housing and is capable of moving relative thereto. When the stopper is in a closed position and the second plunger is positioned below a lower surface of the lower opening, fluid from the air distribution system is sealed within the valve housing and fluid within the bath vessel is prevented from entering the valve housing. Conversely, fluid from the bath vessel and the air distribution system flows through the valve housing and into the fluid waste pipe when the stopper is in an open position and the second plunger is above a lower surface of the lower opening.

REFERENCES:
patent: 3345982 (1967-10-01), Guiler
patent: 3452370 (1969-07-01), Jacuzzi
patent: 4857112 (1989-08-01), Franninge
patent: 5381831 (1995-01-01), Verland
patent: 5383239 (1995-01-01), Mathis et al.

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