发明申请
- 专利标题: Method and apparatus for the evaluation of vacuum insulation panels
- 专利标题(中): 用于评估真空绝热板的方法和装置
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申请号: US10241867申请日: 2002-09-12
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公开(公告)号: US20030041793A1公开(公告)日: 2003-03-06
- 发明人: Eric M. Hagopian
- 申请人: Insulated Shipping Containers, Inc.
- 申请人地址: US AZ Phoenix
- 专利权人: Insulated Shipping Containers, Inc.
- 当前专利权人: Insulated Shipping Containers, Inc.
- 当前专利权人地址: US AZ Phoenix
- 主分类号: G01L019/12
- IPC分类号: G01L019/12
摘要:
A vacuum insulation panel according to the present invention addresses many of the shortcomings of the prior art. In accordance with the present invention, a vacuum insulation panel comprises a barrier film and a core material and a vacuum detection indicator. The vacuum detection indicator is configured to facilitate the evaluation of the integrity of the vacuum within the vacuum insulation panel. The vacuum detection indicator may comprise a cavity in the core material which allows the barrier material to form a depression when a vacuum is drawn within the panel. Accordingly, as the vacuum is reduced or lost, the depression formed in the barrier material will be similarly reduced or lost. In addition, the vacuum detection indicator may comprise a viewing window configured above the barrier material to permit the evaluator to readily determine whether the vacuum has been reduced or lost. Further, the vacuum detection indicator may comprise a spring-like device configured within the cavity. Accordingly, upon a reduction in the vacuum with the panel, the spring-like device suitably uncoils to urge the barrier material towards the outer surface of the panel, i.e., the barrier material returns to its original configuration before the vacuum was drawn in the panel. Moreover, the vacuum detection indicator may comprise electrical contacts suitably configured to indicate that the barrier material has been returned to its original configuration, or may comprise a fluid device configured to release colored-dyes which can provide a clearly visible indication of the loss of vacuum within the panel.
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