Grounding device for rotary electrical printer and method

Details Grounding device for rotary electrical printer and method Grounding device for rotary electrical printer and method

1978-03-22

1979-11-27

Lucas, Jay P.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

346139A, 346163, G01D 1508

Patent

active

041763645

ABSTRACT:
The printer records images in the form of dots on electrical discharge-sensitive paper which has a conductive coating on one surface. A plurality of styli are mounted on a rotor. The paper is fed continuously through a curved guide in a direction perpendicular to the plane of rotation of the rotor. This divisional patent is directed to the feature whereby current is supplied to the styli from a power supply through the conductive coating on the paper. The return path to the power supply is made by means of a simple brush consisting of a curved, helical spring. The spring makes good electrical contact and also serves to help shape the paper into an arc before it passes over the rotor.

REFERENCES:
patent: 2704700 (1955-03-01), Hahn
patent: 2910339 (1959-10-01), Eisler
patent: 3678193 (1972-07-01), Yamamoto
patent: 3733613 (1973-05-01), Koch
patent: 3798657 (1974-03-01), Alden
patent: 3846802 (1974-11-01), Kyotani
patent: 3891991 (1975-06-01), Hurst

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