Scanned electromechanical alphanumeric display

Details Scanned electromechanical alphanumeric display Scanned electromechanical alphanumeric display

1987-12-17

1990-03-27

Oberley, Alvin

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340783, 40473, 40505, G08B 500

Patent

active

049124420

ABSTRACT:
A display apparatus comprises a plurality of rotationally mounted display elements arranged into a matrix of rows and columns, the axes of rotation of said display elements being perpendicular to each associated column and parallel to each associated row, respectively, said display elements each including first and second display faces perpendicular to one another and joined along respective adjacent edges, for providing a desired arrangement of said display faces at the front of said display apparatus; first and second ramp surfaces are rigidly connected along inside edges of and extending substantially perpendicularly away from a back surface of said first and second faces, respectively, opposite the edges joining said first and second display faces, respectively; and an actuator assembly is mounted for bidirectional movement along a path perpendicular to the planes of rotation of said display elements at the rear of said display apparatus, for stroking selected ones of said first and second ramp surfaces with sufficient force to cause the associated display elements to rotate 90.degree. for changing the pattern of associated first and second faces at the first of the display.

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patent: 4616222 (1986-10-01), Wood

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