An over-the-counter, free-standing, water purification system including a pressure vessel that encloses a reverse-osmosis separator. Tap water at a pressure of between approximately 20 and 100 psig is introduced into the pressure vessel and a portion of the water is forced through the reverse-osmosi
An over-the-counter, free-standing, water purification system including a pressure vessel that encloses a reverse-osmosis separator. Tap water at a pressure of between approximately 20 and 100 psig is introduced into the pressure vessel and a portion of the water is forced through the reverse-osmosis separator, while the remaining water is discharged from the pressure vessel along with the pollutants that are too large to penetrate the membrane of the reverse-osmosis separator. The product water passes through the reverse-osmosis separator at a rate of between approximately 5 to 100 milliliters per minute and is then post-filtered at a slow rate through a large amount of activated carbon, between approximately 10 and 1,000 grams, contained within the housing for the purification system. The product water has a contact time of residence time with the activated carbon of between approximately 15 to 30 minutes, which ensures that any odor, taste, color organic waste or chlorine passing through the reverse-osmosis separator are adsorbed by the activated carbon. After passing through the activated carbon, the purified water is discharged from the pressure vessel into, e.g., a container in which it is stored until needed.
대표청구항▼
A self-contained water purification device having an integral, free-standing housing, including a base for supporting the device, comprising, in combination, a pressure vessel supported in the housing and including first tubing means for receiving supply water at a pressure beteen approximately 20 a
A self-contained water purification device having an integral, free-standing housing, including a base for supporting the device, comprising, in combination, a pressure vessel supported in the housing and including first tubing means for receiving supply water at a pressure beteen approximately 20 and 100 psig, a reverse-osmosis filter element having a semipermeable membrane with a surface area of at least 2 sq. cm per cu. cm of volume of the reverse-osmosis filter element supported within the pressure vessel, means for discharging from the pressure vessel a portion of the supply water and impurities unable to pass through the reverse-osmosis filter element, second tubing means for receiving product water that has passed through the reverse-osmosis filter element, second tubing means exiting from the pressure vessel and terminating at an inlet to a carbon unit located within the base containing between approximately 10 and 1,000 grams of activated carbon, within which the product water has a residence time of between approximately 5 and 30 minutes, a flow passage within the base causing the product water to flow through the activated carbon, and third tubing means receiving the product water after it has flowed through the activated carbon, the third tubing means terminating in a region exterior of the housing. A continuous method of purifying tap water comprising passing tap water at a pressure of between approximately 20 and 100 psig through a reverse-osmosis filter membrane, flowing the filtered water at a rate of between approximately 5 and 100 milliliters per minute through between approximately 10 and 1,000 grams of activated carbon, maintaining the filtered water in contact with the activated carbon between approximately 15 and 30 minutes, and flowing the water out of the activated carbon for use.
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이 특허에 인용된 특허 (3)
Harris ; Jr. Robert M. (Reseda CA), Method and apparatus utilizing staged reverse osmosis units for purifying and dispensing water.
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Giordano Edward C. ; Graves Thomas W. ; Jennings James M. ; Vander Berg Mark ; Storer William James A. ; Gibbs Douglas R. ; Lonsinger Douglas A., Water treatment device with volumetric and time monitoring features.
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Giordano Edward C. ; Graves Thomas W. ; Jennings James M. ; Vander Berg Mark ; Storer William James A. ; Gibbs Douglas R. ; Lonsinger Douglas A., Water treatment device with volumetric and time monitoring features.
Giordano, Edward C.; Graves, Thomas W.; Jennings, James M.; Vander Berg, Mark; Storer, William James A.; Gibbs, Douglas R.; Lonsinger, Douglas A., Water treatment device with volumetric and time monitoring features.
Giordano, Edward C.; Graves, Thomas W.; Jennings, James M.; Vander Berg, Mark; Storer, William James A.; Gibbs, Douglas R.; Lonsinger, Douglas A., Water treatment device with volumetric and time monitoring features.
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