Card – picture – or sign exhibiting – Illuminated sign – Lamp box
Patent
1990-05-29
1991-12-17
Cranmer, Laurie K.
Card, picture, or sign exhibiting
Illuminated sign
Lamp box
40575, G09F 1304
Patent
active
050725351
ABSTRACT:
An illuminated, box-type telephone sign having an integral display box supported by a rigid member at only one end of the box. The support member is in the form of a rectangular trough made of resin formed by a cold casting process. The display box have five sides and an open end that fits over and is secured to edges of the supporting member. Support for electrical lamps such as concentric fluorescent bulbs and other electrical components is provided by a bracket connected to the support member and without any connection to the display box. A U-shaped sleeve that slides over front, back, and end faces of the box is also disclosed. The structure avoids the use of a peripheral metal frame for the box and braces connected to such frame, thus providing easier installation and more ready access for maintenance. The lack of a peripheral frame also makes additional faces of the sign available for graphics.
REFERENCES:
patent: 2690552 (1954-09-01), Kiibus
patent: 2699620 (1955-01-01), Smythe
patent: 3056222 (1962-10-01), Boudouris
patent: 3751319 (1973-08-01), Green et al.
patent: 3990166 (1976-11-01), Nagelkirk
patent: 3997991 (1976-12-01), Hayman-Chaffey et al.
patent: 4261125 (1981-04-01), Rappaport
patent: 4277904 (1981-07-01), Leuthesser
patent: 4516344 (1985-05-01), Seely
patent: 4854063 (1989-08-01), Brunell
Cranmer Laurie K.
Green Brian K.
Southern Communications, Inc.
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