| 摘要 |
Indicator system showing the time elapsed, in particular the guaranty time of a new part. It is characterized by a so-called time pellet (18) to be mounted on the new part, and is pressure-sensitive, and is enclosed in a breakable protective cap (14) inside a protected space containing a solvent (16) for the material of the time pellet (16) and inside a pressure-sensitive membrane (20) exposed to external effects. |
