Roller
US4055879A · kind A · utility
3Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 25, 1976 |
| Grant date | Nov 1, 1977 |
| Priority date | — |
| Expiry date | May 25, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/324
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A roller to be used in apparatus for wet treatment of photographic material comprises a hollow metallic core and two inserts with coupling shafts provided therein. A coat of chemically resistant thermoplastic material is applied around and sealingly surrounds the core to protect it from the corrosive action of media used in the wet treatment process. The outer surface of the thus coated roller is thereupon machined to a high-quality finish.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.