Curved face airport guidance sign

Details Curved face airport guidance sign Curved face airport guidance sign

2008-05-27

2008-05-27

Hoge, Gary C (Department: 3611)

Card, picture, or sign exhibiting

Illuminated sign

Lamp box

C040S700000

Reexamination Certificate

active

11365404

ABSTRACT:
An improved illuminated airfield guidance sign of the type used for marking ground traffic routes on runways and taxiways has a curved face. The sign is capable of withstanding the prescribed wind load tests and at the same time has even illumination across each of its legend panels. The curved legend panels are preferably formed of sheets of acrylic or equivalent substrate with a thickness of about 0.354 inches except at the edges where the edge portion is about 0.220 inches. The edge portion i.e. peripheral flange fits into the grooves or channels along the base and end panels of the frame.

REFERENCES:
patent: 1479485 (1924-01-01), Van Bloem
patent: 3090033 (1963-05-01), Cleary et al.
patent: 3593447 (1971-07-01), Winegarten
patent: 4424449 (1984-01-01), O'Brill
patent: 5582477 (1996-12-01), Reinert, Sr.
patent: 5678336 (1997-10-01), Jue et al.
patent: 6946975 (2005-09-01), Hansler et al.
patent: 7134764 (2006-11-01), Bieberdorf
“Lumacurve Taxiway and Runway Signs,” Flight Light, Inc., Data Sheet L-858, Oct. 1, 2003.
“Evaluation of Wind-Loading on Airport Signs,” Keith Bagot, Federal Aviation Administration, Jun. 2000.

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