Laminated glass units
US4124733A · kind A · utility
23Cited by
17References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 1977 |
| Grant date | Nov 7, 1978 |
| Priority date | — |
| Expiry date | May 3, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3163
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A laminated glass windscreen comprises two sheets of glass laminated together with a layer of transparent plastics material. The inner sheet of the windscreen is of thickness in the range 0.5 mm to 3 mm and is toughened to a degree such that the central tensile stress in the glass is from 380 kg/cm.sup.2 to 1120 kg/cm.sup.2. The outer sheet may be an untoughened sheet of thickness 0.5 mm to 3.5 mm or a toughened sheet of thickness 0.5 mm to 3 mm and whose central tensile stress does not exceed 560 kg/cm.sup.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.