Indicator device

Indicator device

  • CN 1,835,691 B
  • Filed: 08/11/2004
  • Issued: 01/23/2013
  • Est. Priority Date: 08/13/2003
  • Status: Active Grant
First Claim
Patent Images

1. aging device indicating (1,5,9,10) of be used for determining plastic article, described plastic article can be degenerated under ultraviolet radiation, and described device indicating comprises:

  • Carrier material, described carrier material are used for being placed on the described plastic article or being combined in the described plastic article;

    Be arranged on the pigment in the carrier material, described pigment can be degenerated under ultraviolet radiation;

    Wherein, described carrier material is arranged to have different thickness (2,3,4,11,12,13,14,15,16), therefore, when exposing to the open air in ultraviolet radiation lower time, will degenerate in the pigment, thereby the surface at carrier material produces change color, the residual life of described change color indication plastic article.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×