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US 4,305,826 AGranted
Method and apparatus for softening and filtering water
AssigneeUnited Standard Management Corporation
InventorRay E. Moses
Life of this patent
Estimating the term…
Abstract
Method of and a multilayered filter for softening and filtering water. The water to be softened and filtered flows through a first layer of particles of activated carbon, a second layer of beads of an organic ion cation exchange resin, a third layer of granules of sodium aluminium silocate, and a fourth layer of grains of filter sand which layers are arranged vertically in a tank. The filter comprises the four above identified layers of filter materials.
Claims10
The method of softening and filtering water comprising the steps of:
- passing the water through a first layer of particles of activated carbon, the effective size of the particles being substantially 0.87 mm. with a uniformity coefficient of substantially 1.49;
- passing the water through a second layer of beads of an organic cation ion exchange resin, the size of the beads being substantially in the range of from 0.46 to 1.2 mm.;
- passing the water through a third layer of granules of zeolite, the size of the granules being substantially in the range of from 0.4 to 1.2 mm.;
- and
- passing the water through a fourth layer of grains of quartz filtration sand, the effective size of sand grains being substantially 10 mm.
2 more elements
A filter for softening and filtering water comprising:
- a first layer of particles of activated carbon, said particles having an effective size of 0.87 mm. with an uniformity coefficient of 1.49;
- a second layer of beads of an organic ion exchange resin beneath the first layer, the size of the beads being substantially in the range of from 0.46 to 1.2 mm.;
- a third layer of granules of zeolite beneath the second layer, the size of the granules being substantially in the range of from 0.4 to 1.2 mm.;
- and
- a fourth layer of grains of filtration sand beneath the third layer, the effective size of sand grains being substantially 10 mm.
2 more elements
Dependencies are inferred from the claim text.