Card – picture – or sign exhibiting – Display card – Having a curved display panel
Patent
1975-03-10
1977-07-12
Pitrelli, John F.
Card, picture, or sign exhibiting
Display card
Having a curved display panel
46 87, G09F 1914
Patent
active
040344959
ABSTRACT:
Structures are provided in inflatable toys having eyecatching optical effects. In one form of the invention, an added section of transparent flexible plastic is heat sealed to the outer wall of an inflatable enclosure and contains printed matter which cooperates with printed matter on the outer surface of the inflatable enclosure directly aligned therewith to provide interference effects which appear to change as the angle of sight of the observer and the inflatable assembly varies.
In another form, an inflatable enclosure is made of transparent flexible plastic material and contains printed grid lines or other forms of printing having spaces or interstices provided on opposite surfaces of the inflatable enclosure and may be viewed directly through the enclosure so as to generate interference patterns.
The invention is also concerned with an inflatable display or lamp containing an electric light secured within an inner wall of the enclosure which is exterior of the inflated volume.
REFERENCES:
patent: 1567132 (1925-12-01), Gill
patent: 2170539 (1939-08-01), Schoberg
patent: 2482947 (1949-09-01), Swarbrick
patent: 2927383 (1960-03-01), Longino
patent: 3026648 (1962-03-01), Lemelson
patent: 3686782 (1972-08-01), Erickson
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