Electricity: electrical systems and devices – Discharging or preventing accumulation of electric charge
Patent
1982-12-03
1985-11-12
Moose, Jr., Harry E.
Electricity: electrical systems and devices
Discharging or preventing accumulation of electric charge
361213, 361229, 361230, H05F 300
Patent
active
045531919
ABSTRACT:
A device for neutralizing static electric charge on a surface comprising a support means, a plurality of resilient, flexible thin fibers having an electrical resistivity of from about 2.times.10.sup.3 ohm-cm to about 1.times.10.sup.6 ohm-cm., the fibers being supported by the support means in such manner that the fibers are oriented and extend in a uniform direction, in a brush like configuration from the support means so that the distal ends of the fibers may extend toward a surface which has a static charge which one wishes to neutralize. Preferably, the resilient fibers have a resistivity of from about 4.times.10.sup.4 ohm-cm. to about 4.times.10.sup.5 ohm-cm., and are arranged in a linear array of spaced discrete bundles of fibers in a conductive potting composition in the support holder. Preferably the fibers are made of a partially carbonized polyacrylonitrile fiber and the device may be used in an electrostatographic reproducing machine having at least one dicorotron charging device.
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Description of the Carbonization Process of Polyacrylonitrile Fibers of Electrical Characteristics (L. Brehmer/L. M. Pinnow/J. Ludwig).
Plaste und Kautschuk, vol. 27, No. 6, pp. 309-313, Carbon Fiber Production at Low Temperatures from Polyacryonitrile-D. E. Cagliostro 1980 Textile Research Institute pp. 632-638.
Franks, Jr. William S.
Randall John M.
Swift Joseph A.
Moose Jr. Harry E.
Xerox Corporation
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