Chemical apparatus and process disinfecting – deodorizing – preser – Physical type apparatus – Means separating or dissolving a material constituent
Patent
1986-06-13
1988-04-19
Lacey, David L.
Chemical apparatus and process disinfecting, deodorizing, preser
Physical type apparatus
Means separating or dissolving a material constituent
422277, 4223, 4231, B01D 1102, E03D 903
Patent
active
047388331
ABSTRACT:
A toilet bowl cleaner dispenser which automatically increases or decreases its liquid volume output respectively in response to an increase or decrease in the concentration of cleaning material dissolved in a liquid solution in a dispenser reservoir, and a method of manufacture thereof. The dispenser, which may be fixed in a toilet tank at a designated position relative to the quiescent water level in the tank, includes an enclosure having an internal cavity containing a solid block of water soluble cleaning agent, the cavity being sealed except for an upper air vent and a lower water inflow and solution outflow opening. The air vent communicates with the exterior of the dispenser through an air inflow and outflow passage having an air opening at a vertical level between the upper air vent and the lower opening. The lower opening communicates with the exterior of the dispenser through a passage having a liquid opening at a vertical level between the air opening and the lower opening. With this structure, the desired volume of solution dispensed at each flush is obtained as a result of changes in the specific gravity of the solution reflecting changes in concentration of the cleaning material therein and causing a corresponding change in the level of the solution in the dispenser. In accordance with one method and structure of the invention, the dispenser is formed from a flexible rectangular sheet having holes prepunched therein and which is formed and sealed using heating techniques.
REFERENCES:
patent: 2802724 (1957-08-01), Johnson
patent: 2874032 (1959-02-01), Kuehner
patent: 4181702 (1980-01-01), Watson
patent: 4212089 (1980-07-01), Lindauer
patent: 4375109 (1983-03-01), Jones
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