Static structures (e.g. – buildings) – Irreversibly reactive component
Patent
1986-09-05
1987-12-22
Perham, Alfred C.
Static structures (e.g., buildings)
Irreversibly reactive component
52729, 52732, 52DIG5, E04C 332, E04C 304, B23K 900
Patent
active
047139196
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.
REFERENCES:
patent: 3071855 (1963-01-01), Mineah
patent: 3158925 (1964-12-01), Edge
patent: 3517474 (1970-06-01), Lanternier
patent: 3686819 (1972-08-01), Atkinson
patent: 3845544 (1974-11-01), Nurminen et al.
patent: 4023005 (1977-05-01), Bolin
patent: 4128978 (1978-12-01), Beynon
patent: 4246737 (1981-01-01), Eiloart
patent: 4455806 (1984-06-01), Rice
patent: 4471204 (1984-09-01), Takafuji et al.
patent: 4489529 (1984-12-01), Ollinger et al.
patent: 4554718 (1985-11-01), Ollinger et al.
patent: 4598514 (1986-07-01), Shirey
patent: 4606166 (1986-08-01), Platt et al.
A. Earley John F.
A. Earley III John F.
National Rolling Mills Inc.
Perham Alfred C.
LandOfFree
Laser welded ceiling grid members does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Laser welded ceiling grid members, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser welded ceiling grid members will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-812312