Apparatus for developing photosensitive material
US3936854A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 24, 1974 |
| Grant date | Feb 3, 1976 |
| Priority date | — |
| Expiry date | May 24, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03D5/003
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus for the liquid processing or development of a latent image on a photographic or electrostatic material utilizes a single liquid, usually referred to as a monobath, for developing the latent photographic image or a liquid developer, which comprises a liquid carrier and toner particles, for developing the latent electrostatic image. The apparatus comprises two members between which the material is clamped during the development process. The first member which is fixed, has an open-end chamber that is interconnected to two sources of air under pressure and to a reservoir for at least one processing fluid. This chamber is also provided with two concentrically arranged sealing means for retaining the processing fluid in proper relation to the image area being developed when the material is clamped between the two members. The second member also has an open-end chamber which is enclosed by a transparent support and is movable relative to the first member for clamping the material therebetween via the sealing means. After the processing fluid has been introduced for developing the latent image, two air flows of different duration are then introduced into the chamber of the fi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.