Reinforced bead
US4852325A · kind A · utility
30Cited by
6References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 13, 1989 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | Jan 13, 2009 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04C2003/046
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A grid tee or member for suspended ceilings has a reinforced bead, a central web and a pair of flangs formed from a single sheet of metal. The reinforced bead has a continuous outer upper surface and can either be a hollow reinforced bead with a rectangular or triangular configuration or a solid bead having a thickness of at least four layers. The hollow bead structure can have a single layer for the top continuous surface with at least two side portions having at least three layer thicknesses, or can be a single top layer, which has more than three layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.