Chemical apparatus and process disinfecting – deodorizing – preser – Physical type apparatus – Means separating or dissolving a material constituent
Patent
1983-04-22
1987-09-08
Straub, Gary P.
Chemical apparatus and process disinfecting, deodorizing, preser
Physical type apparatus
Means separating or dissolving a material constituent
422 14, 239310, 137268, 210749, 210706, C23F 1100, B01D 1102, B01D 3500, C02F 168
Patent
active
046923144
ABSTRACT:
For water-treatment in swimming pools, cooling towers, hot tubs, and other systems, it is desired to feed various chemicals in small quantities but at optimum rates into the system. In several embodiments of the invention the water is recirculated through the system which usually includes a filter. It has been discovered that the chemicals can be fed by enclosing them in generally spherical plastic capsules suggestive of table tennis balls, but about the size of a base ball. The rate of feeding depends upon the size and number of small holes which are provided, or the user pokes through the shell of the capsule, upon the solubility of the chemical, and upon the flow rate of the water through a strainer, skimmer, or other chamber in the system into which the capsule is introduced. The random orientation of the capsule tends to average out variations. In other embodiments, the capsule is weighted to direct the small holes upward as it rests in quiet water, thereby substantially stopping the flow of chemical; but as the water is sloshed about in use, the chemical is dispensed at a rate proportional to the amount of use. Safety, convenience, and economy are among the asserted advantages. Invention is seen in the new use of such capsules for the purposes indicated.
REFERENCES:
patent: 429384 (1890-06-01), Hanwarnig
patent: 2826484 (1958-03-01), Buehler
patent: 3633538 (1972-01-01), Hoeflin
patent: 3677408 (1972-07-01), Dinzo
patent: 3684460 (1972-08-01), Arneson
patent: 3706140 (1972-12-01), Brillond
patent: 3846078 (1974-11-01), Brett
patent: 3924807 (1975-12-01), Morgan
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