Patent ID: 6798219
Filing Date: 2004-09-28
Classification: G01K,G06K

Abstract:
A passive electronic device for monitoring the temperature of a medium to be monitored enabling one to make sure that the temperature has not reached at least a pre-established index limit value, wherein it includes:electrically conductive contact means able to close an electric charge flow circuit when said temperature reaches the or one of the index limit values; electric charge storage means able to be connected to the charge flow circuit when the contact means close, the charges stored in these storage means being kept as long as the temperature does not reach its or one of its index limit values, and being able to flow through said charge flow circuit when the circuit is closed by said contact means, said storage means not returning to the charge state which they had before the charge flow circuit closed if the latter opens again, and read means enabling the charge state of said storage means to be determined.