Temperature measuring device of a liquid crystal laminate
AssigneeAshley-Butler, Inc.
InventorSandor Caplan
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Abstract
Device for measuring temperature differentials on mammalian skin surfaces comprising separate dots of liquid crystals, sealed in a grid pattern between thin, performed, flexible films.
Claims13
A temperature measuring device of high sensitivity and stability comprising a plurality of separate dots of liquid crystals which change color in a selected temperature range, sandwiched between two thin preformed, self-supporting films of heat sealable sheet material containing up to 500 mg per ream of monomeric components of solvents which are reactive with or soluble in the liquid crystal, a bottom opaque film and a top polymer film through which the color changes in the liquid crystals can be observed, the two films being sealed together in a grid pattern along narrow seal lines to form a multiplicity of separate cells, each cell containing a dot of liquid crystal.
Dependencies are inferred from the claim text.