Film registration slides
US6342914B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2000 |
| Grant date | Jan 29, 2002 |
| Priority date | — |
| Expiry date | Aug 28, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N1/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus for registering film in a drum scanner assembly including; a concave curved film platen having spaced first and second linear edges that are oriented horizontally and third and fourth curved side edges connected between the first and second edges, the concave, curved film platen having a curved surface defining a curved film path having a first downwardly curved position and a second upwardly curved position from the first to the second edges, first and second spaced film engagement assemblies independently and movably mounted relative to the platen at the second portion of the film path, the assemblies having film registration slides for engaging the leading edge of a sheet of film fed onto the concave, curved film platen from the first edge and along the curved film path the slides being mounted for movement over substantially the length of the second portion of the path and being adapted to register films of different lengths; and device associated with the slides for biasing the slides through the force of gravity against the leading edge of the film, wherein as the film is fed along the curved path, the slides are moved upwardly by the film against the force of gr…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.