Smart porous film or material
AssigneeThe Secretary of State for Defense
InventorsColin Dawson, Julian Vincent
Life of this patent
Estimating the term…
Abstract
A smart film or material which automatically controls its porous properties in relation to changes in its local environment thus allowing fluids to pass through the film or material in a controlled fashion.
Claims15
A smart film or material comprising a layer, a surface of which has discrete areas which have fluid absorption properties different to the rest of the layer wherein the discrete areas and the layer which they cover are cut so as to provide a plurality of close fitting flaps through the film or material such that any strain difference between the discrete areas and the layer which they cover, caused by their different fluid absorption properties, will cause the flaps to bend thus providing an opening in the layer.
Dependencies are inferred from the claim text.