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AssigneeEltex-Elektronik H. Grunenfelder El. Ing.
InventorsHans Grunenfelder, Hermann Kunzig
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A device for moistening and discharging electrically insulating objects, comprises, an atomizer for atomizing a liquid, such as water, into a spray and for directing the spray through a path and onto the object. The spray is directed through a path which is provided with an electrode charger or a group of chargers arranged in a pattern for charging the spray particles with a charge opposite to the object so that when they contact the object, they discharge the object as well as moisten it. The device is usable in the printing industry by passing a paper web which has been either previously printed or will be printed through a path after it has been charged with a charge, such as a positive charge, and then directing a spray onto the web after the spray moves through a series of electrodes to impart an opposite charge to the spray particles from that of the paper, so that the particles both moisten the paper and discharge the charge therefrom when they are directed thereto. The apparatus advantageously includes a spray nozzle for spraying water using an air source and for directing the spray which is formed through a tubular element having a plurality of sharp pointed electrodes arranged there to project into the tubular element and provide charges of the particles which pass therethrough.
A device for moistening and/or discharging electrically insulating objects and materials, in particular webs and sheets of paper and plastic, comprising:
A device for moistening and/or discharging electrically insulating objects and materials, in particular webs and sheets of paper and plastic, comprising:
A method of moistening and/or discharging electrically insulating objects and materials, in particular webs and sheets of paper and plastic, comprising the steps of forming a quantity of water into a spray of atomized water, directing the spray of atomized water through a passageway for causing larger heavier droplets of water in the spary to fall out of the spray, directing the spray into a passage extending through a body spaced from the passageway, subjecting the spray in the body to a corona discharge to produce a charge on the droplets of the spray of atomized water by using a plurality of sharp charging electrodes extending into the passage of the body, and directing the charged droplets through an outlet opening of the body toward the objects and materials to be moistened and/or discharged.
Dependencies are inferred from the claim text.