Method for verifying a time-sensitive and/or temperature-sensitive indicator
AssigneeBizerba GmbH & Co. KG
InventorDieter Conzelmann
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Abstract
The invention relates to a method for verifying a time-sensitive and/or temperature-sensitive indicator for marking perishable products. According to said method, the time at which the indicator is activated is detected and stored, the time difference between the stored activation time and a verification time is determined, and verification is made as to whether the change of the indicator occurring during the determined time difference exceeds or falls short of a desired value that depends on the determined time difference. The invention further relates to an indicator for carrying out such a method.
Claims42
A method for the checking of an indicator having a time-sensitive and/or temperature-sensitive substance activatable via light for the marking of perishable products, wherein
- time of the activation of the indicator is detected and stored;
- time difference between the stored activation time and an inspection time is determined;
- and
- a check is made whether change of the indicator which occurred in the determined time difference is greater or less than a desired value dependent on the determined time difference.
A method for the checking of an indicator having a time-sensitive and/or temperature-sensitive substance activatable via light for the marking of perishable products, wherein
- stored time of activation of the indicator is called up or read;
- a time difference between the stored activation time and an inspection time is determined;
- and
- a check is made whether the change of the indicator which occurred in the determined time difference is greater or less than a desired value dependent on the determined time difference.
Dependencies are inferred from the claim text.