Apparatus for neutralizing and registering an electrostatically

Details Apparatus for neutralizing and registering an electrostatically Apparatus for neutralizing and registering an electrostatically

1975-10-31

1978-02-07

Envall, Jr., R. N.

Electricity: electrical systems and devices

Discharging or preventing accumulation of electric charge

Of paper or paper handling machine

271195, 271208, 271236, H05F 306

Patent

active

040730018

ABSTRACT:
In a first embodiment a stop having a plurality of ports is connected to and covers an end of a rectangular sleeve. In a region near the stop a narrow wall of the sleeve also has a plurality of ports. Near the other end of the sleeve the other narrow wall includes a plurality of ports communicating with the space inside the sleeve and a chamber of a grounded metallic manifold coupled to the sleeve. Insulators support in the chamber an electrode connected to a voltage source and a pump forces air past the electrode and into the sleeve to provide therein an ionized fluid. The fluid exits through the ports in said narrow wall and stop and if a charged sheet is in the sleeve it is neutralized and registered against said narrow wall and stop. In a second embodiment, similar to the first, the ports in the narrow wall and sleeve communicate with the chamber of a second manifold coupled to the sleeve. The second manifold is coupled to a vacuum pump for moving fluid out of the sleeve, thereby accelerating registration.

REFERENCES:
patent: 1940536 (1933-12-01), Eyler
patent: 3422411 (1969-01-01), Smith, Jr.
patent: 3588096 (1971-06-01), Leiter et al.
patent: 3617049 (1971-11-01), Testone
patent: 3918706 (1975-11-01), Craft

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