| 摘要 |
A water purification device includes a water collecting device having a surface defining a variable volume and comprising a filter membrane permeable to water. The device includes an expansion device for exerting a force for increasing the volume of the water collecting device and thereby drawing water through the filter membrane into the water collecting device. The expansion device includes a support structure supporting the filter membrane, wherein the support structure can be elastically deformed and is designed to settle or snap, after being deformed, into one of at least two discrete stable configurations, a first one of these stable configurations being a low volume configuration of the support structure, a second one of these stable configurations being a high volume configuration of the support structure. |
| 主权项 |
1. A water purification device, comprising a water collecting device having a surface defining a variable volume, wherein at least part of the surface of the water collecting device comprises a filter membrane, the filter membrane being permeable to water and allowing water to enter the water collecting device, wherein the device comprises an expansion device for exerting a force for increasing the volume of the water collecting device and thereby drawing water through the filter membrane into the water collecting device, wherein the expansion device comprises a support structure supporting the filter membrane, wherein the support structure can be elastically deformed and is designed to settle, after being deformed, into one of at least two discrete stable configurations, a first one of said at least two stable configurations being a low volume configuration of the support structure, a second one of said at least two stable configurations being a high volume configuration of the support structure. |
