| Patent application number | Description | Published |
|---|
| 20080203005 | WATER FILTER DEVICE FOR USE WITH INDIVIDUAL CONTAINERS - An apparatus for producing purified drinking water. The apparatus comprises a container top including an ultrafiltration insert. The container top attaches to the opening of a liquid holding container, such that liquid from the container passes through a filter. The device includes a mechanism for back flushing or cleaning the filter. The resulting water is substantially pure, being free of bacteria, to make it safe for drinking. | 08-28-2008 |
| 20080203025 | LOW PRESSURE PRODUCTION OF DRINKING WATER - An apparatus and methods for producing purified drinking water are disclosed. A hand pump is used in a closed system to generate pressure sufficient to pass the untreated water through a system of filters and a reverse osmosis membrane. The system preferably includes an ultrafiltration filter. The resulting water is substantially pure, being free of bacteria and having a significant amount of minerals and salts removed to make it safe for drinking. The system can produce enough potable water to supply the daily needs for a small village. | 08-28-2008 |
| 20090127171 | WATER SUPPLY SYSTEM WITH FILTRATION AND RETROFIT ASSEMBLY - A water supply system in accordance with the invention includes pumping in which there is a mechanical co-dependency between the generations of liquid-draw pressure and filtration-drive pressure, but a hydraulic dependency of the application of the filtration-drive pressure upon release of water from the liquid-draw pressure. In one preferred embodiment, the system is enabled by a retrofit assembly in which a second, filtration-drive pump is mechanically connected to the pump handle of a water intake pump. The retrofit assembly may include multiple arms and hinge points for coupling the second pump to the pump handle, as well as a flow path from the output of the water intake pump to the input of the second pump and a flow path from the second pump to a filtration system. The flow path between the two pumps typically includes an unfiltered water outlet. | 05-21-2009 |
| 20090127199 | METHOD AND DEVICE FOR FLUORIDE REMOVAL FROM DRINKING WATER - A water filtration device and method in which water is pumped through a chamber containing iron oxide particles or material, which allows removal of ionic contaminants, including fluoride. Water is then pumped through a plurality of ultrafilration tubes. The water enters the sides of the tubes into the tube interior and flows out of the open ends of the tubes. The sides and the ends of the tubes are separated by a water impermeable barrier. | 05-21-2009 |
| Patent application number | Description | Published |
|---|
| 20080203005 | WATER FILTER DEVICE FOR USE WITH INDIVIDUAL CONTAINERS - An apparatus for producing purified drinking water. The apparatus comprises a container top including an ultrafiltration insert. The container top attaches to the opening of a liquid holding container, such that liquid from the container passes through a filter. The device includes a mechanism for back flushing or cleaning the filter. The resulting water is substantially pure, being free of bacteria, to make it safe for drinking. | 08-28-2008 |
| 20080203025 | LOW PRESSURE PRODUCTION OF DRINKING WATER - An apparatus and methods for producing purified drinking water are disclosed. A hand pump is used in a closed system to generate pressure sufficient to pass the untreated water through a system of filters and a reverse osmosis membrane. The system preferably includes an ultrafiltration filter. The resulting water is substantially pure, being free of bacteria and having a significant amount of minerals and salts removed to make it safe for drinking. The system can produce enough potable water to supply the daily needs for a small village. | 08-28-2008 |
| 20090127171 | WATER SUPPLY SYSTEM WITH FILTRATION AND RETROFIT ASSEMBLY - A water supply system in accordance with the invention includes pumping in which there is a mechanical co-dependency between the generations of liquid-draw pressure and filtration-drive pressure, but a hydraulic dependency of the application of the filtration-drive pressure upon release of water from the liquid-draw pressure. In one preferred embodiment, the system is enabled by a retrofit assembly in which a second, filtration-drive pump is mechanically connected to the pump handle of a water intake pump. The retrofit assembly may include multiple arms and hinge points for coupling the second pump to the pump handle, as well as a flow path from the output of the water intake pump to the input of the second pump and a flow path from the second pump to a filtration system. The flow path between the two pumps typically includes an unfiltered water outlet. | 05-21-2009 |
| 20090127199 | METHOD AND DEVICE FOR FLUORIDE REMOVAL FROM DRINKING WATER - A water filtration device and method in which water is pumped through a chamber containing iron oxide particles or material, which allows removal of ionic contaminants, including fluoride. Water is then pumped through a plurality of ultrafilration tubes. The water enters the sides of the tubes into the tube interior and flows out of the open ends of the tubes. The sides and the ends of the tubes are separated by a water impermeable barrier. | 05-21-2009 |
