Pressure indicating devices
AssigneeActive Device Developments Ltd.
InventorBryan Greener
Life of this patent
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Abstract
A device for the reversible indication of applied pressure by a colour change comprising a translucent layer and a coloured layer comprising an elastomer associated by means of an apertured layer, comprising one or more apertures.
Claims33
A device for reversible indication of applied pressure by a colour change comprising:
- a translucent layer;
- a coloured layer comprising an elastomer;
- and
- an apertured layer, comprising one or more apertures;
- wherein the translucent layer and the coloured layer are associated by means of the apertured layer.
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The device according to claim 14, wherein the lenticular lens array sheet comprises a first surface and a second surface opposed to the first surface wherein the lenticular lenses are disposed on the first surface and the second surface is flat.
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Dependencies are inferred from the claim text.