Aluminum shot blasted web conveying roller
US4964203A · kind A · utility
4Cited by
19References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1989 |
| Grant date | Oct 23, 1990 |
| Priority date | — |
| Expiry date | Oct 25, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2404/521
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An aluminum roller for conveying a web has a surface prepared by blasting the surface of the roller with steel shot to create on the surface a deep texture with well rounded down features and sharp up features with peaks. The blasted surface is finished with a grinding action for removing the peaks to produce plateaus surrounded by interconnected channels. Then the surface is hardcoated and polished. The interconnected channels of the surface allow air entrained between the roller surface and a web to be vented through the channels while the web is in contact with the roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.