Composite roll covering for expressing machines
US4697511A · kind A · utility
16Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 8, 1985 |
| Grant date | Oct 6, 1987 |
| Priority date | — |
| Expiry date | Jul 8, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB30B9/246
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In a dewatering machine for dewatering wet solids in which an elastomeric covered roll applies pressure upon one or more dewatering valves, the improvement whereby the elastomeric roll covering is a multi-layer covering having a graded hardness across the covering layer. A typical covered roll of such a machine is one in which a soft rubber-like material adheres to the surface of the roll and is covered by a harder outer covering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.