Plastic extrusion-transport roller for photomechanical apparatus
US4718154A · kind A · utility
11Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 5, 1986 |
| Grant date | Jan 12, 1988 |
| Priority date | — |
| Expiry date | Aug 5, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03D3/13
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A transport roller made of plastics by extrusion and used for photomechanical apparatus for transporting film or X-ray cassettes or the like is formed as a sleeve having an internal recess, the surface of which is provided with a plurality of inwardly radially protruding ribs which ensure a stable and rigid structure of the roller without requiring a metallic core in the roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.