InventorsAssigneeUS Classes137/13, Affecting flow by the addition of material or energy137/827By non-fluid energy field affecting input (e.g., transducer)Attorney, Agent or FirmInternational Classes G05D 7/06 F15C 3/00 Issued Patent Number:7975723
Abstract textA method of controlling fluid through a layer of a soft compressible (e.g., gel) material including an array of fluid flow paths. The fluid flow paths are normally open, allowing fluid flow. An electric field is applied in regions where fluid flow is undesirable. The electric field compresses the material closing the flow path thereby preventing further fluid flow. | 
