Device and method for moistening and/or discharging electrically insulating objects and materials
US4219864A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1978 |
| Grant date | Aug 26, 1980 |
| Priority date | — |
| Expiry date | Apr 4, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B5/1608
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
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 arr…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.