Ceiling grid system and method of assembling the same
US6851238B2 · kind B2 · utility
20Cited by
60References
13Claims
0Family size
Inventor
Key dates
| Filing date | Mar 14, 2002 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | Mar 14, 2022 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04B9/122
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention provides a ceiling-grid system including a main-runner and a cross-tee. The main-runner has a main-runner tee-portion including at least one opening having a frustoconical portion and a second portion. The cross-tee has a cross-tee tee-portion and a cross-tee support shoulder. The cross-tee tee-portion includes an end and a projection extending from the end. The cross-tee support shoulder is coupled to the cross-tee tee-portion and the projection is insertable into the frustoconical portion and slidable into the second portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.