Velocity compensation for bead bypass
US3945724A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 4, 1974 |
| Grant date | Mar 23, 1976 |
| Priority date | — |
| Expiry date | Jun 4, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G17/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system employing at least one separation roller continuously contacting the outside surface of a web and tracked to move in a fixed approximately elliptical path for compensating for web motion during separation of the web from another surface to enable a bead of accumulated material built up at the line of contact between the web and the other surface to pass therebetween without changing the web velocity. In a preferred embodiment, the system is employed in photoelectrophoretic imaging to bypass a bead of imaging suspension built up at the imaging nip during separation of two webs immediately after completion of imaging to thereby permit dissipation or passage of the liquid bead without changing the advancing web velocity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.