Drainage foil element having two wire bearing portions
US4123322A · kind A · utility
16Cited by
6References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 24, 1977 |
| Grant date | Oct 31, 1978 |
| Priority date | — |
| Expiry date | Jun 24, 1997 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F1/483
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A drainage foil providing improved fines retention and drainage stability when used in cooperation with the forming wire of a machine that forms a mat or web from a wet slurry. The foil has two wire-contacting surfaces a fixed distance apart with a suction-forming section and a drainage section between them. Forces effective on the foil during use are balanced so as to minimize torque around the foil mounting means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.