Card – picture – or sign exhibiting – Changing exhibitor – Alphanumeric device
Patent
1992-12-29
1995-02-28
Crowder, Clifford D.
Card, picture, or sign exhibiting
Changing exhibitor
Alphanumeric device
40447, 40492, G09F 304
Patent
active
053925467
ABSTRACT:
Two thin sheets of material have slits to define coplanar flaps that are configured and arranged in conformity with segments of a segmental display such as a seven-segment digital display. The layers are superimposed such that corresponding segments are superimposed. The layers have contrasting colors. Applying a force against the overlying flap in a segment causes the overlying and underlying flaps to deflect in the same direction for the outer edges of the flaps to pass each other. When the force is removed the flaps restore to positions that are substantially coplanar with the layers in which they are formed. When the flap in the overlying layer is coplanar with its layer that flap and, hence, the segment is not visible because there is no contrast between the flap and the layer being viewed. When the flap of the underlying layer is caused to switch over the flap in the overlying layer there is contrast between the flap and the overlying layer so the segment represented by the flap is visible.
REFERENCES:
patent: 3296726 (1967-01-01), Hill
patent: 3363347 (1968-01-01), Benson
patent: 3372501 (1968-03-01), Greene
patent: 4115936 (1978-09-01), Nidelkoff
patent: 4220948 (1980-09-01), Trame
patent: 4509279 (1985-04-01), Greenberger
patent: 4539768 (1985-09-01), Halliday
patent: 4729184 (1988-03-01), Cihanek
patent: 4777747 (1988-10-01), Murray, Jr.
patent: 4858357 (1989-08-01), Thorn
Crowder Clifford D.
Everbrite Inc.
Worrell Jr. Larry D.
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