Patent ID: 6378454
Filing Date: 2002-04-30
Classification: G01K

Abstract:
Device for detecting, assessing and signaling thawing of deep frozen foodstuff, fit to be applied to an area of the product to be checked where liquid water is released during thawing, said device including:a first support (3), made of laminar, water permeable material; impermeable transparent films, upper (8) and lower (9) respectively, whose shape is identical to said first support (3), said upper and lower transparent films being respectively fastened to an upper surface (3b) and to a lower surface (3a) of said first support (3), so as to allow water to expand only from an outer edge zone (5); said device being characterized in that said first support (3) comprises a display zone (6), made of material such that said display zone (6) becomes at least partially transparent when reached by water, and a pattern (4), situated in said lower surface (3a), extending from said outer edge zone (5) to said display zone (6), formed by substances for facilitating water expansion through said pattern (4), said first support (3) also comprising coloring water-soluble substances applied to said lower surface (3a) in the display zone (6).