Browse Prior Art Database

Compound Electrostatic Eliminator Brush

IP.com Disclosure Number: IPCOM000101665D
Original Publication Date: 1990-Aug-01
Included in the Prior Art Database: 2005-Mar-16
Document File: 2 page(s) / 66K

Publishing Venue

IBM

Related People

Bruchlos, J: AUTHOR [+3]

Abstract

For discharging electrostatic loads, in particular from moved surfaces 1, such as the surfaces of paper money or securities, single sheets of paper, paper webs, and the like, a brush-shaped device 2, 3 is provided, lateral and front views of which are shown in Figs. 1 and 2, respectively.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 70% of the total text.

Compound Electrostatic Eliminator Brush

       For discharging electrostatic loads, in particular from
moved surfaces 1, such as the surfaces of paper money or securities,
single sheets of paper, paper webs, and the like, a brush-shaped
device 2, 3 is provided, lateral and front views of which are shown
in Figs. 1 and 2, respectively.

      The brush-shaped device 2, 3 has fibers 4, 5 which are
substantially arranged at an angle of about 30 to 60o to plane 6 of
surface 1 to be discharged.  Tips 7, 8 of fibers 4, 5 of the
brush-shaped device 2, 3 are positioned such that they are spaced by,
say, 1 to 2 mm from surface 1, so that there is no contact between
tips 7, 8 of fibers 4, 5 and surface 1 but that loads are discharged.

      Fibers 4, 5 consist of a mixture of fibers of different
materials, such as carbon fibers 9 and metal fibers 10. Carbon fibers
9 may be made of, say, graphitized polyacrylnitril with a Graphil
E/XA-S* surface coating. Metal fibers 10 may consist of a mixture of
fine steel yarn of, say, stainless chromium nickel molybdenum steel
and/or of silver steel wire.  Fibers 9 and 10 may be mixed with each
other in plait or rope form at a ratio of 1:3.  Another embodiment
may consist of alternately arranged separate bundles of carbon and
metal fibers (Figs. 1 and 2).  Fibers 4 and 5 are arranged in a
bar-shaped brush 11, 12 between two electrically conductive carriers
13 and 14 and may be held in place by clamping.  The fibers may be
sputte...