Dewatering device
US6660161B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2002 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Nov 11, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB30B9/20
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Apparatus for pressing liquid from a liquid containing material is disclosed including a pair of juxtaposed rotary rolls forming a nip, at least one of the rolls being liquid permeable, that roll including an abduction surface extending laterally across the roll so that a portion of the liquid stream pressed out form the liquid containing material passing through the nip runs along the abduction surface, a liquid collector for collecting that portion of pressed out liquid extending laterally across the roll and including a liquid inlet for the pressed out liquid stream, and a return flow protector for preventing the pressed out liquid stream from rewetting the reduced liquid material formed in the nip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.