发明名称 |
Over-temperature warning device |
摘要 |
A critical temperature warning apparatus and method to monitor the thermal history of a product such as a memory card. The apparatus comprises a critical temperature indicator, which is externally attached to a product to be monitored. The indicator indicates if the product has experienced a critical temperature. The critical temperature indicator may comprise a patterned array of wax, the wax having a melting point equal to the critical temperature. If the pattern of wax has been destroyed leaving a molten wax residue, then this indicates that the product has experienced a critical temperature. The critical temperature indicator may also include thermographic inks for indicating that a critical temperature has been experienced.
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申请公布号 |
US2003024465(A1) |
申请公布日期 |
2003.02.06 |
申请号 |
US20010921145 |
申请日期 |
2001.08.03 |
申请人 |
PERNER FREDERICK A.;ANTHONY THOMAS;BHATTACHARYYA MANOJ |
发明人 |
PERNER FREDERICK A.;ANTHONY THOMAS;BHATTACHARYYA MANOJ |
分类号 |
G01K11/16;G01K11/06;G09F3/00;G09F3/02;G09F3/10;(IPC1-7):G01K11/06 |
主分类号 |
G01K11/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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