Ceiling grid with seal
US6701686B1 · kind B1 · utility
25Cited by
19References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 16, 2003 |
| Grant date | Mar 9, 2004 |
| Priority date | — |
| Expiry date | Jan 16, 2023 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B2009/062
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A beam for a suspended ceiling in a clean room has soft plastic flaps on top of the flanges. The flaps form a seal when a ceiling panel is supported on the beam. The flaps, formed continuously as the beam emerges from a roll forming operation, are integral with a plastic coating on the metal beam core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.