Electric mat switch
OwnerNorman K. Millerinventor
Life of this patent
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Abstract
An electric mat switch including a pair of outer wear layers, a pair of inner moisture barrier layers between the wear layers and a separator layer between the moisture barrier layers; all of which layers are substantially congruent and sealed together about their peripheral margins as by heat sealing, radio frequency welding or the like; and a pair of conductor layers each located between the separator layer and a respective barrier layer and spaced inwardly from the sealed margins; the separator layer being resiliently compressible and openly configured for flexure therethrough of the conductor layers into contact with each other.
Claims12
An electric mat switch comprising a pair of facing spaced generally congruent flexible outer wear layers fabricated of weldable material, a pair of facing spaced flexible inner moisture barrier layers between and generally congruent to said outer wear layers and fabricated of weldable material, a pair of facing spaced flexible conductor layers between said moisture barrier layers generally similar to and smaller than said moisture barrier layers and spaced inwardly from the margins thereof, and a resiliently compressible apertured separator layer of weldable material interposed between said conductor layers and generally congruent to said moisture barrier and wear layers;
- the overlying margins of said wear layers, moisture barrier layers and separator layer being welded together to locate and retain each conductor layer between the separator layer and a respective moisture barrier layer.
Dependencies are inferred from the claim text.