Device for transporting sheet members using an alternating voltage
US5121170A · kind A · utility
42Cited by
9References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1991 |
| Grant date | Jun 9, 1992 |
| Priority date | — |
| Expiry date | Jan 24, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G2215/00679
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A device for use in electrostatographic image recording equipment for retaining and transporting a paper sheet, document or similar sheet member. A transporting member is implemented as an endless belt. An AC voltage is applied to the belt to form a charge density pattern on the surface of the belt, while the charge density pattern sets up a non-uniform electric field in close proximity to the surface of the belt. The non-uniform electric field urges the sheet member against the belt and thereby allows it to be surely transported by the belt to a predetermined position without being dislocated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.