Pressure device and seal for filter belt machines
US4834884A · kind A · utility
6Cited by
12References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1987 |
| Grant date | May 30, 1989 |
| Priority date | — |
| Expiry date | Aug 10, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB30B9/24
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A pressure device for machines for dewatering or filtering of suspensions, sludges or the like or for material to be pressed for the exertion of surface pressure on at least one circulating pressure belt which can be provided for supporting an equally circulating filter belt, which pressure device consists of an essentially completely hollow pressure bladder in the form of a closed frame in particular of essentially quadrangular shape viewed in top view of the pressure belt, which pressure bladder is subjectable to pressure medium and forms a very small, self-adjusting gap on the edge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.