Equipment for disclosing pressure
OwnerStephen Charles Rakowskiinventor
Life of this patent
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Abstract
The invention relates to equipment such as for detecting and providing visual confirmation of pressure thereon, e.g. from an impact, which comprises an article having a sandwich construction with a pressure-disclosing layer (3) comprising a liquid crystal, thermochromic material, and a temperature differential layer (5), separated by a layer (4) providing a compressible mechanical shield between the pressure-disclosing layer and the temperature-differential layer. Material according to the invention can be employed to indicate the boundaries of a tennis court, or sports playing areas, or as a golf training aid, among other uses.
Claims11
Equipment for detecting and providing visual confirmation of an impact thereon or of a pressure differential which comprises an article having a sandwich construction with a pressure-disclosing layer comprising a liquid crystal, or other thermochromic material, and a temperature-differential layer, separated by a layer providing a compressible mechanical shield between the impact-disclosing layer and the heat emitting layer.
Dependencies are inferred from the claim text.