Method to separate silicone seal by thermal degradation
US6805753B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2003 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Oct 14, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/74
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for removing silicone sealant from glass-ceramic surfaces is provided. The method includes heating the sealant to a temperature greater than 325 degrees Celsius so that it thermally degrades and then, mechanically removing the sealant from the glass-ceramic surface. A method of salvaging a glass-ceramic cooking surface from a cooktop including silicone sealant between a cooktop frame and the glass-ceramic cooking surface is also provided. If a defect is detected in the cooktop during manufacturing or distribution, the entire cooktop is heated to a predetermined temperature to allow the silicone sealant to be easily removed without using a knife or other potentially damaging devices. Once the silicone sealant is removed, the glass-ceramic cooking surface may be reused to produce another cooktop assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.