Laser welded ceiling grid members
US4713919A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 5, 1986 |
| Grant date | Dec 22, 1987 |
| Priority date | — |
| Expiry date | Sep 5, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S52/05
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method of making an inverted T shaped ceiling grid member comprises the steps of folding a sheet of metal to form a vertical central web with a bulb at the top and having two web sidewalls with a pair of oppositely disposed horizontal flanges extending outwardly from the bottom of the web for supporting ceiling tiles, and laser welding the two web sidewalls together by applying a laser beam thereto to form a laser weld to increase the strength and rigidity of the ceiling grid member. A cap may be attached to the flanges to cover the bottom of the flanges. A metal inverted T shaped ceiling grid member comprises a vertical web having a bulb at the top and having two web sidewalls, a pair of oppositely disposed horizontal flanges extending outwardly from the bottom of the web, and a laser weld joining the two web sidewalls together. A cap may be attached to the flanges to cover the bottom of the flanges.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.