Stock material or miscellaneous articles – Display in frame or transparent casing; or diorama including...
Patent
1997-05-02
1999-10-12
Epstein, Henry F.
Stock material or miscellaneous articles
Display in frame or transparent casing; or diorama including...
428 14, 4289133, B44C 504
Patent
active
059652217
ABSTRACT:
A plaque and method of manufacture including a flat sheet of tinted transparent plastic having a smooth front viewing face and a rear face having a line drawing integrally molded thereto. When viewed through the front face, the line drawing presents to the viewer a glow according to the color of the tinting and an illusion of line drawing relief upon the front face. In a modification, the plaque can be backed by a black reflecting plate, and in another modification the plaque can be edge illuminated by an artificial light source. The plaque is made by CNC machining a grooved engraving on a polished steel plate and placing the engraved plate in an injection molding machine to cause molten plastic to cover the plate and flow into the grooves.
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Epstein Henry F.
Kreten Bernhard
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