Card – picture – or sign exhibiting – Changing exhibitor – With electric circuit control
Patent
1977-03-28
1978-09-05
Mancene, Louis G.
Card, picture, or sign exhibiting
Changing exhibitor
With electric circuit control
40471, G09F 1100
Patent
active
041109252
ABSTRACT:
A sign cabinet having a scroll movably mounted on rollers for movement past a display opening in the cabinet. A torsion spring acts on one of the rollers to compensate for differences in the rate of movement of the scroll at the two rollers. An electronic control circuit automatically senses the position of the scroll and is actuated by the position information for controlling the operation of the scroll. The modes of operation include: continuously moving back and forth between preselected end points within the scroll; moving back and forth within a predetermined section within the end points, stopping at preselected frames within the section; and, advancing from one frame or section to another.
REFERENCES:
patent: 3334432 (1967-08-01), Bates et al.
patent: 3510973 (1970-05-01), Mazzocco
patent: 3961433 (1976-06-01), D'Cruz
Esboldt Richard J.
Strand Neal T.
Alexander Cruzan
Burns Robert W.
Contreras Wenceslao J.
Mancene Louis G.
Minnesota Mining and Manufacturing Company
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