Control sample of a deep-frozen product or a product, whose keep

Details Control sample of a deep-frozen product or a product, whose keep Control sample of a deep-frozen product or a product, whose keep

1993-01-13

1994-04-12

Cuchlinski, Jr., William A.

Signals and indicators

Indicators

Temperature responsive or compensating means

374160, 374106, G01K 102, G01K 1106

Patent

active

053016327

ABSTRACT:
A check sample of a deep-frozen product or a product is provided, whose keeping, conserving or preserving temperature, which is below ambient temperature, must be controlled or checked. The sample includes a case or envelope, which is sealed in an inviolable manner and, in the case or envelope, a meltable object having a predetermined shape different from the internal shape of the case. This object has a melting point below or equal to the thawing or keeping temperature of the product and the initial shape of the object is impossible to reconstitute following thawing or reheating, even of a partial nature, of the product. According to the invention, the case comprises a first part made invisible and integral with the product or a pack containing the latter by insertion into the pack or the case a second part, which is visible and integral with the first part. The object has a first portion at least partly filling the first invisible part of the case and a second portion having a shape which is at least partly different from the internal shape of the second visible part of the case. This second portion of the object has at least one transparent window for rendering the object visible.

REFERENCES:
patent: Re25499 (1963-12-01), Fenity et al.
patent: 2460215 (1949-01-01), Chase
patent: 3220259 (1965-11-01), Beyer
patent: 3695903 (1972-10-01), Telkes et al.
patent: 3696679 (1972-10-01), Peterson et al.
patent: 3701282 (1972-10-01), Peterson
patent: 4941425 (1990-07-01), Holzer
patent: 4947786 (1990-08-01), Maynard et al.
patent: 4998827 (1991-03-01), Holzer

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