Card – picture – or sign exhibiting – Illuminated sign – Lamp box
Patent
1995-10-03
1997-10-21
Silbermann, Joanne
Card, picture, or sign exhibiting
Illuminated sign
Lamp box
40622, G09F 1304
Patent
active
056783361
ABSTRACT:
An illuminated sign, such as an emergency exit sign, includes a stencil in which a pair of oppositely-directed, arrow-shaped through-holes are disposed. At least one arrow-shaped snap-in element is provided which is inserted into either of the through-holes to block the passage of light therethrough. The snap-in element includes elastic spring fingers having hook-shaped ends adapted to engage a rear end of a ridge which borders a rear side of a respective through-hole, thereby yieldably retaining the snap-in element within the through-hole. All of the spring-fingers are movable simultaneously through a respective through-hole.
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Jue George H.
Kuffel Gregory L.
Cooper Industries Inc.
Silbermann Joanne
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