Automotive laminate with hole
US11305516B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2018 |
| Grant date | Apr 19, 2022 |
| Priority date | — |
| Expiry date | Jul 24, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C3/04
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Laminated glazing, once limited to just the windshield, is finding more and more application in other positions on the vehicle due to its ability to improve passenger safety, security and comfort. Problems are encountered when producing a laminated version of a tempered part with holes, because tempered glass is 4 to 5 times stronger than annealed glass. The laminate of the invention has a hole in the exterior glass layer. An insert is bonded to a cutout in the area of the hole on the interior glass layer so as to reinforce the hole and distribute the load over a wider area. The result is a laminated glazing with one or more holes that has the reliability of and is a direct replacement for a tempered part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.