Corona charging device

Details Corona charging device Corona charging device

1984-11-01

1991-07-02

Berman, Jack I.

Radiant energy

Corona irradiation

Charging of moving object

355221, H01T 1900, G03G 1502

Patent

active

050287796

ABSTRACT:
A miniature coronode charging device comprising a plurality of coronode wires that are slanted with respect to the direction of travel of a charge receptor in order to reduce the effective distance between "hot spots" in the wires and thereby insure uniform charging of the receptor. The length of coronode wires between support points and their conducting contacts is very small, thereby eliminating sagging, singing, tensioning and capacitance problems when providing a corotron charging device of unlimited length. Individual high impedance to the plurality of coronode wires is provided in order to limit the amount of current passing to each of the wires from a high voltage source and thereby reduce the possibility of arcing and damages to the charge receptor. Spacing between coronoa wires and the charge receiving surface is small to provide low corona threshold and self-limiting charging.

REFERENCES:
patent: 2576047 (1951-11-01), Schaffert
patent: 2836725 (1958-05-01), Vyverberg
patent: 2881470 (1959-04-01), Berthold et al.
patent: 2956847 (1960-10-01), Giaimo Jr.
patent: 3233156 (1966-02-01), Jarvis et al.
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patent: 3470417 (1969-09-01), Gibbons
patent: 3566223 (1971-02-01), Salger
patent: 3764866 (1973-10-01), Bonaventura et al.
patent: 3900735 (1975-08-01), Jahn
patent: 4110024 (1978-08-01), Gundlach
patent: 4306271 (1981-12-01), Weber
Research Disclosure, vol. 185, Sep. 1979, p. 504, No. 18543, Havant Hampshire, GB, J. Fiske et al.
Research Disclosure; "Corona Charger," -Feb. 1974-pp. 28-29.

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