Compliant pressure roller with uniform nip pressure
US7258654B2 · kind B2 · utility
4Cited by
12References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2004 |
| Grant date | Aug 21, 2007 |
| Priority date | — |
| Expiry date | May 18, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB21B37/30
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A compliant pressure roller (10) for creating uniform pressure at a nip (42) has a stationary inner core (12). A plurality of shoes (14) is pivotally mounted to the stationary inner core. Non-magnetic dividers (16) create a plurality of annular chambers (18) and one shoe occupies one of the chambers. A magneto-rheological fluid fills each of the chambers and a plurality of magnetic field generators (13) changes a magnetic field in each of the chambers. A thin, rotatable shell (24) surrounds the plurality of chambers, shoes, and stationary inner core.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.