Card – picture – or sign exhibiting – Illuminated sign – Lamp box
Patent
1978-07-25
1981-01-06
Pitrelli, John F.
Card, picture, or sign exhibiting
Illuminated sign
Lamp box
40572, 40575, 40611, G09F 1304
Patent
active
042428211
ABSTRACT:
The light box of the present invention comprises a peripheral wall which has opposite peripheral edges, a back wall adjacent one of those peripheral edges and a rigid one piece molded frame adjacent the other peripheral edge, the frame defining one side of the light box. The frame comprises front and rear faces and inner and outer side faces, gripping means comprised by a rearwardly opening channel on the frame which clampingly receives the aforementioned peripheral edge of the peripheral wall, that channel extending inwardly from the rear face towards the front face of the frame and being defined by a pair of opposed flanges each of which defines a respective one of the inner and outer side faces of the frame. The frame further includes a groove in the inner side face thereof which extends around the periphery and a slot in a portion of the frame extending therethrough between the inner and outer side faces, the groove and slot being substantially co-planar such that a marginal edge of a pictorial display can be held captive in the groove and is receivable therein through the slot. Illuminating means is mounted within the light box for illuminating the pictorial display.
REFERENCES:
patent: 1620396 (1927-03-01), Sackett
patent: 1847775 (1932-03-01), Manfre
patent: 1879147 (1932-09-01), Evans
patent: 3132431 (1964-05-01), Petrie
patent: 3413745 (1968-12-01), Cabe
patent: 3449848 (1969-06-01), Howell
patent: 4021949 (1977-05-01), Niehaus et al.
patent: 4067130 (1978-01-01), Rasmussen
patent: 4117533 (1978-09-01), Hagelthorn
Pitrelli John F.
Skillington G. Lee
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