Frame construction for a projecting illuminated sign box

Details Frame construction for a projecting illuminated sign box Frame construction for a projecting illuminated sign box

1979-12-19

1981-11-10

Peshock, Robert

Card, picture, or sign exhibiting

Illuminated sign

Lamp box

40572, 40575, 40578, G09F 1304

Patent

active

042990424

ABSTRACT:
A frame construction for an illuminated sign comprises a metal sheathing on both top and bottom frame members of the frame, the sheathing being bent at its longitudinal edges to form longitudinally extending grooves, wherein both the top and the bottom frame members having longitudinally extending flanges inserted in the sheathing, while the longitudinal grooves of the sheathing are employed for mounting partly translucent front sheets, end frame members of the frame including tongues extending perpendicular thereto which are insertable into cavities formed by the longitudinal bent portions of the sheathing.

REFERENCES:
patent: 871510 (1907-11-01), Kerr
patent: 3235989 (1966-02-01), Brooks
patent: 3390259 (1968-06-01), Angier
patent: 3396483 (1968-08-01), Stein et al.
patent: 3835613 (1974-09-01), Davies, Jr.
patent: 3863372 (1975-02-01), Stilling

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