Method and apparatus for the formation of particles
US5851453A · kind A · utility
107Cited by
6References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1996 |
| Grant date | Dec 22, 1998 |
| Priority date | — |
| Expiry date | Jan 31, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D2401/90
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method for the dewatering of a material layer of paper fibers in a double-screen former, where the sheet weight (oven-dried sheet weight (otro)) is more than 100 g/m.sup.2 and/or the screen circulates with a speed of at least 100 m/min. Two screens are guided at two guide surfaces that, for example, belong to open forming cylinders. In this arrangement forming cylinders of this kind are so dimensioned and positioned that no dewatering elements that contact one of the screens are present between the run-out line of the screens from the first guide surface and the run-in line at the second guide surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.