Display with changeable characters

Card – picture – or sign exhibiting – Changing exhibitor – Alphanumeric device

Patent

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Details

40497, 40536, 40623, 40601, G09F 937

Patent

active

044110847

ABSTRACT:
A display having mechanically changeable characters and a support for the display are disclosed. The display comprises an array of mechanical flip-flop elements which can each be rotated between two orientations exposing one of two visually different sides. The flip-flop elements are bars secured resiliently by springs to a frame in such a manner that each flip-flop element can be manually pulled away from the frame, rotated to change its orientation, and released to snap back against the frame. The flip-flop elements are arranged in groups of seven, each group having its seven flip-flop elements arranged into two adjacent quadrilaterals of equal size, one flip-flop element being common to both quadrilaterals. Channels are provided on the rear side of the frame to receive the springs. Various lengths for the flip-flop elements are disclosed. The support maintains the display in an elevated position and draws up the display by means of a retractable cable. A securement device holds the display up. Guide posts on the support guide the display back up into position after being lowered, the retractable cable being passed through the posts.

REFERENCES:
patent: 1357457 (1976-11-01), Jorgensen
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patent: 3250031 (1966-05-01), Bowman
patent: 3273270 (1966-09-01), Skrobisch
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patent: 4024532 (1977-05-01), Sherwin
patent: 4063377 (1977-12-01), Hukill
patent: 4142311 (1979-03-01), Lane
patent: 4164824 (1979-08-01), Nidelkoff
patent: 4205472 (1980-06-01), Shirley
patent: 4223464 (1980-09-01), Winrow

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Profile ID: LFUS-PAI-O-705823

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