Membrane
AssigneeSensor (UK) Ltd
InventorJon Crowther
Life of this patent
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Abstract
A membrane 10 is a geomembrane 10, which takes the form of a non-conductive sheet 11. A conductive layer 13 is printed on to the sheet 11, in this instance in a geometric pattern of a rectangular grid. The lines of the grid 13 are conductive and connected to each other, with non-conductive gaps 15 disposed between the grid lines. Accordingly, a conductive linear network is formed, which has the requisite conductivity for leak detection.
Claims19
A membrane comprising a non-conductive layer comprising a plastic material, and a first printed conductive layer formed on a first surface of the non-conductive layer, the non-conductive layer and the first printed conductive layer forming a sheet of the membrane,
- wherein the first printed conductive layer comprises a plurality of electrically isolated conductive regions isolated from each other by a non-conductive region of the first printed conductive layer disposed between each of the electrically isolated conductive regions, and
- wherein the non-conductive layer comprises a non-conductive border region between the first printed conductive layer and at least one edge of the membrane, the non-conductive border region allowing the sheet of the membrane and another sheet of the membrane to be welded together without interfering with conductivity of the respective sheet of the membrane and the another sheet of the membrane.
A method of manufacturing a membrane comprising the steps of forming a non-conductive layer and printing a first conductive layer on a first surface of the non-conductive layer,
- wherein the first printed conductive layer comprises a plurality of electrically isolated conductive regions isolated from each other by a non-conductive region of the first printed conductive layer disposed between each of the electrically isolated conductive regions, and
- wherein the membrane comprises a non-conductive border region disposed between the first printed conductive layer and at least one edge of the membrane.
Dependencies are inferred from the claim text.