Vacuum roller
US6464219B1 · kind B1 · utility
14Cited by
2References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 2000 |
| Grant date | Oct 15, 2002 |
| Priority date | — |
| Expiry date | Jun 16, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H20/12
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A vacuum roller includes a roller having transverse holes and surface holes, in which each of the surface holes intersects with at least one of the transverse holes. A cap mates to a portion of the roller where the transverse holes are exposed. The cap has a cavity that aligns to at least one of the transverse holes and remains substantially stationary during rotation of the roller. A vacuum device evacuates the cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.