Imaging system having external drum and method for producing drum
US6250221A · kind A · utility
7Cited by
5References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 14, 1999 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Sep 14, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49565
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides an extruded external drum for an imaging system. The external drum is extruded from a light-weight and strong material such as an aluminum alloy. The external drum includes a thin outer wall, a hollow cylindrical hub, and a plurality of thin radial spokes extending between the cylindrical hub and the outer wall. The present invention provides a stiff external drum having low rotational inertia.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.