Kenneth W Saunders

US Patent:

D3573028, Apr 11, 1995

Filed:

Mar 12, 1993

Appl. No.:

D/005787

Inventors:

Anthony M. Colangelo - San Diego CA
Kenneth N. Saunders - San Marcos CA

Assignee:

Nimbus Water Systems, Inc. - San Marcos CA

US Classification:

D23207

US Patent:

52961486, Mar 22, 1994

Filed:

Mar 16, 1993

Appl. No.:

8/032142

Inventors:

Anthony M. Colangelo - San Diego CA
Kenneth N. Saunders - San Marcos CA

Assignee:

Nimbus Water Systems, Inc. - San Marcos CA

International Classification:

B01D 6112

US Classification:

210642

Abstract:

A water purification apparatus utilizing a reverse osmosis cartridge which supplies a measured amount of potable water to substantially fill an open top pitcher of known desired size. This free-standing apparatus includes an electric pump which withdraws water from an overhead reservoir and pumps it through prefilters and the reverse osmosis cartridge, from which a brine stream returns to the reservoir and a product water stream discharges from an overhead outlet above the pitcher. Control means monitors the level and quality of water in the reservoir and halts the operation of the pump as soon as the water level falls below a lower predetermined level which is set so that the desired measured quantity will have been delivered to the pitcher from a full reservoir. The control means also halts operation when the total dissolved solids content in the reservoir reaches a preset upper limit. The quality of the product water is also monitored and compared with the quality of the water being pumped to the reverse osmosis cartridge; a "service" indicator light is illuminated when the desired percentage of total dissolved solids is not being removed by the reverse osmosis cartridge.