Baths – closets – sinks – and spittoons – Disinfection – Dispensing to air from closet
Patent
1983-10-06
1985-07-23
Artis, Henry K.
Baths, closets, sinks, and spittoons
Disinfection
Dispensing to air from closet
4227, 4222, 2224245, 222425, E03D 902
Patent
active
045301182
ABSTRACT:
A passive dispenser for containing a quality of solution isolated from a body of liquid and for causing a predetermined volume of said solution to issue from the dispenser solely under conditions of gravity flow in response to the level of said body of liquid being lowered from a first elevation to a second elevation, said dispenser adapted for placement at the bottom of said body of liquid, comprising an upper section which is a cuplike member having an open bottom, the lower peripheral edge being an annular channel; a lower section which is a cuplike member having an open top, said cuplike members providing an internal reservoir for storage of cleaning solution formed upon dissolution of a water-soluble cake contained with said reservoir, the top peripheral edge of the lower section being disposed within said annular channel to define a discharge/refill conduit connecting said reservoir with the body of liquid and comprising two chambers in fluid communication with each other, one chamber being adjacent to said reservoir to form an air trap chamber and the other being adjacent to said body of liquid to form an air refill chamber, a transfer port connecting said air trap and air refill chambers, the cross-sectional area of said transfer port normal to fluid flow being smaller than the cross-sectional area of said air trap chamber normal to fluid flow such that air in said conduit is not completely displaced by said liquid when the level of the body of liquid rises from said second elevation to the first elevation, the air being entrapped in said air trap chamber and forming, upon cessation of flow into the reservoir, an air lock in said conduit that substantially isolates said solution from the body of liquid; and vent means above the discharge/refill conduit for air to vent from said reservoir.
REFERENCES:
patent: 668762 (1901-02-01), Thomson
patent: 3781926 (1974-01-01), Levey
patent: 3867101 (1975-02-01), Herring
patent: 4244062 (1981-01-01), Corsette
patent: 4307474 (1981-12-01), Choy
patent: 4365362 (1982-12-01), Corey
patent: 4407779 (1983-10-01), Thompson
patent: 4435858 (1984-03-01), Dolan
Artis Henry K.
The Drackett Company
Zeller Charles
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